/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy CAMEL_NO_AM -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-new/count_by_1_variant.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-79ed534 [2020-07-19 21:47:13,334 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-19 21:47:13,337 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-19 21:47:13,350 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-19 21:47:13,350 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-19 21:47:13,352 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-19 21:47:13,353 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-19 21:47:13,355 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-19 21:47:13,357 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-19 21:47:13,358 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-19 21:47:13,359 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-19 21:47:13,361 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-19 21:47:13,361 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-19 21:47:13,362 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-19 21:47:13,364 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-19 21:47:13,365 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-19 21:47:13,366 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-19 21:47:13,367 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-19 21:47:13,369 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-19 21:47:13,372 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-19 21:47:13,373 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-19 21:47:13,375 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-19 21:47:13,376 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-19 21:47:13,377 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-19 21:47:13,380 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-19 21:47:13,388 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-19 21:47:13,389 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-19 21:47:13,390 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-19 21:47:13,391 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-19 21:47:13,411 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-19 21:47:13,412 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-19 21:47:13,413 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-19 21:47:13,413 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-19 21:47:13,414 INFO L138 SettingsManager]: * Use SBE=true [2020-07-19 21:47:13,414 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-19 21:47:13,414 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-19 21:47:13,414 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-19 21:47:13,414 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-19 21:47:13,415 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-19 21:47:13,415 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-19 21:47:13,415 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-19 21:47:13,415 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-19 21:47:13,415 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-19 21:47:13,416 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-19 21:47:13,416 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-19 21:47:13,416 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-19 21:47:13,416 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-19 21:47:13,417 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-19 21:47:13,417 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-19 21:47:13,417 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-19 21:47:13,417 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-19 21:47:13,417 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-19 21:47:13,418 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-19 21:47:13,418 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-19 21:47:13,418 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-19 21:47:13,418 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-19 21:47:13,418 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-19 21:47:13,419 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-19 21:47:13,419 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> CAMEL_NO_AM [2020-07-19 21:47:13,773 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-19 21:47:13,794 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-19 21:47:13,798 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-19 21:47:13,800 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-19 21:47:13,800 INFO L275 PluginConnector]: CDTParser initialized [2020-07-19 21:47:13,801 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-new/count_by_1_variant.i [2020-07-19 21:47:13,871 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67ba1be35/37f114fe0c1943a4bb68dc4b453b13c5/FLAG725c40fd2 [2020-07-19 21:47:14,406 INFO L306 CDTParser]: Found 1 translation units. [2020-07-19 21:47:14,407 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-new/count_by_1_variant.i [2020-07-19 21:47:14,414 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67ba1be35/37f114fe0c1943a4bb68dc4b453b13c5/FLAG725c40fd2 [2020-07-19 21:47:14,784 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67ba1be35/37f114fe0c1943a4bb68dc4b453b13c5 [2020-07-19 21:47:14,796 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-19 21:47:14,800 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-19 21:47:14,801 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-19 21:47:14,802 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-19 21:47:14,807 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-19 21:47:14,808 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 09:47:14" (1/1) ... [2020-07-19 21:47:14,812 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1048ae1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:47:14, skipping insertion in model container [2020-07-19 21:47:14,812 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 09:47:14" (1/1) ... [2020-07-19 21:47:14,821 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-19 21:47:14,845 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-19 21:47:15,058 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 21:47:15,063 INFO L203 MainTranslator]: Completed pre-run [2020-07-19 21:47:15,080 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 21:47:15,097 INFO L208 MainTranslator]: Completed translation [2020-07-19 21:47:15,098 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:47:15 WrapperNode [2020-07-19 21:47:15,098 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-19 21:47:15,099 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-19 21:47:15,099 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-19 21:47:15,099 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-19 21:47:15,115 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:47:15" (1/1) ... [2020-07-19 21:47:15,115 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:47:15" (1/1) ... [2020-07-19 21:47:15,121 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:47:15" (1/1) ... [2020-07-19 21:47:15,122 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:47:15" (1/1) ... [2020-07-19 21:47:15,126 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:47:15" (1/1) ... [2020-07-19 21:47:15,131 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:47:15" (1/1) ... [2020-07-19 21:47:15,132 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:47:15" (1/1) ... [2020-07-19 21:47:15,134 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-19 21:47:15,135 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-19 21:47:15,135 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-19 21:47:15,135 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-19 21:47:15,136 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:47:15" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-19 21:47:15,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-19 21:47:15,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-19 21:47:15,275 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-19 21:47:15,275 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-19 21:47:15,276 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-19 21:47:15,276 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-19 21:47:15,276 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-19 21:47:15,276 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-19 21:47:15,276 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-19 21:47:15,276 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-19 21:47:15,276 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-19 21:47:15,277 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-19 21:47:15,277 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-19 21:47:15,462 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-19 21:47:15,462 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-19 21:47:15,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 09:47:15 BoogieIcfgContainer [2020-07-19 21:47:15,467 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-19 21:47:15,468 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-19 21:47:15,468 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-19 21:47:15,472 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-19 21:47:15,472 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 09:47:14" (1/3) ... [2020-07-19 21:47:15,473 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cf4c73d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 09:47:15, skipping insertion in model container [2020-07-19 21:47:15,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:47:15" (2/3) ... [2020-07-19 21:47:15,474 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cf4c73d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 09:47:15, skipping insertion in model container [2020-07-19 21:47:15,474 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 09:47:15" (3/3) ... [2020-07-19 21:47:15,476 INFO L109 eAbstractionObserver]: Analyzing ICFG count_by_1_variant.i [2020-07-19 21:47:15,487 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-19 21:47:15,495 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-19 21:47:15,512 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-19 21:47:15,538 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-19 21:47:15,538 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-19 21:47:15,538 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-19 21:47:15,539 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-19 21:47:15,539 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-19 21:47:15,539 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-19 21:47:15,539 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-19 21:47:15,539 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-19 21:47:15,557 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2020-07-19 21:47:15,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-07-19 21:47:15,563 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:47:15,564 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:47:15,565 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:47:15,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:47:15,572 INFO L82 PathProgramCache]: Analyzing trace with hash 651998901, now seen corresponding path program 1 times [2020-07-19 21:47:15,581 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:47:15,582 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855586629] [2020-07-19 21:47:15,583 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:47:15,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:15,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:15,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 21:47:15,812 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855586629] [2020-07-19 21:47:15,813 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 21:47:15,813 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-19 21:47:15,814 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464778551] [2020-07-19 21:47:15,821 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-19 21:47:15,821 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:47:15,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-19 21:47:15,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-19 21:47:15,842 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 5 states. [2020-07-19 21:47:16,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:47:16,032 INFO L93 Difference]: Finished difference Result 40 states and 49 transitions. [2020-07-19 21:47:16,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-19 21:47:16,034 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-07-19 21:47:16,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:47:16,041 INFO L225 Difference]: With dead ends: 40 [2020-07-19 21:47:16,041 INFO L226 Difference]: Without dead ends: 21 [2020-07-19 21:47:16,045 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-19 21:47:16,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-07-19 21:47:16,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2020-07-19 21:47:16,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-07-19 21:47:16,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2020-07-19 21:47:16,084 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 10 [2020-07-19 21:47:16,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:47:16,085 INFO L479 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2020-07-19 21:47:16,085 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-19 21:47:16,085 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2020-07-19 21:47:16,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-07-19 21:47:16,086 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:47:16,087 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:47:16,087 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-19 21:47:16,087 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:47:16,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:47:16,088 INFO L82 PathProgramCache]: Analyzing trace with hash -1822329080, now seen corresponding path program 1 times [2020-07-19 21:47:16,088 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:47:16,089 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771861483] [2020-07-19 21:47:16,089 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:47:16,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:16,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:16,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:16,192 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 21:47:16,192 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771861483] [2020-07-19 21:47:16,193 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1577728049] [2020-07-19 21:47:16,193 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:47:16,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:16,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-19 21:47:16,236 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:47:16,278 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:47:16,320 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 21:47:16,321 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:47:16,321 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2020-07-19 21:47:16,323 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632232715] [2020-07-19 21:47:16,324 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-19 21:47:16,324 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:47:16,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-19 21:47:16,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-07-19 21:47:16,326 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand 8 states. [2020-07-19 21:47:16,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:47:16,414 INFO L93 Difference]: Finished difference Result 30 states and 30 transitions. [2020-07-19 21:47:16,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-19 21:47:16,415 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 17 [2020-07-19 21:47:16,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:47:16,417 INFO L225 Difference]: With dead ends: 30 [2020-07-19 21:47:16,417 INFO L226 Difference]: Without dead ends: 28 [2020-07-19 21:47:16,419 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-07-19 21:47:16,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-07-19 21:47:16,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 27. [2020-07-19 21:47:16,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-07-19 21:47:16,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2020-07-19 21:47:16,427 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 17 [2020-07-19 21:47:16,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:47:16,428 INFO L479 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2020-07-19 21:47:16,428 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-19 21:47:16,428 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2020-07-19 21:47:16,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-07-19 21:47:16,429 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:47:16,430 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:47:16,645 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-07-19 21:47:16,646 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:47:16,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:47:16,647 INFO L82 PathProgramCache]: Analyzing trace with hash 1510359893, now seen corresponding path program 2 times [2020-07-19 21:47:16,648 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:47:16,649 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421947291] [2020-07-19 21:47:16,649 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:47:16,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:16,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:16,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:16,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:16,770 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-19 21:47:16,771 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421947291] [2020-07-19 21:47:16,771 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [968358514] [2020-07-19 21:47:16,772 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:47:16,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:16,803 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-19 21:47:16,806 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:47:16,817 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:47:16,851 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-19 21:47:16,852 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:47:16,852 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-07-19 21:47:16,853 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159040189] [2020-07-19 21:47:16,854 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-19 21:47:16,854 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:47:16,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-19 21:47:16,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-07-19 21:47:16,855 INFO L87 Difference]: Start difference. First operand 27 states and 27 transitions. Second operand 9 states. [2020-07-19 21:47:16,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:47:16,965 INFO L93 Difference]: Finished difference Result 37 states and 37 transitions. [2020-07-19 21:47:16,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-19 21:47:16,966 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 24 [2020-07-19 21:47:16,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:47:16,967 INFO L225 Difference]: With dead ends: 37 [2020-07-19 21:47:16,967 INFO L226 Difference]: Without dead ends: 35 [2020-07-19 21:47:16,970 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-07-19 21:47:16,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-07-19 21:47:16,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 34. [2020-07-19 21:47:16,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-07-19 21:47:16,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 34 transitions. [2020-07-19 21:47:16,989 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 34 transitions. Word has length 24 [2020-07-19 21:47:16,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:47:16,991 INFO L479 AbstractCegarLoop]: Abstraction has 34 states and 34 transitions. [2020-07-19 21:47:16,991 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-19 21:47:16,991 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 34 transitions. [2020-07-19 21:47:16,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-07-19 21:47:16,993 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:47:16,994 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:47:17,208 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:47:17,210 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:47:17,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:47:17,211 INFO L82 PathProgramCache]: Analyzing trace with hash 1096709736, now seen corresponding path program 3 times [2020-07-19 21:47:17,212 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:47:17,212 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643022886] [2020-07-19 21:47:17,213 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:47:17,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:17,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:17,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:17,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:17,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:17,377 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 15 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-19 21:47:17,378 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643022886] [2020-07-19 21:47:17,378 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [718929405] [2020-07-19 21:47:17,378 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:47:17,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:17,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-19 21:47:17,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:47:17,427 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:47:17,450 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 15 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-19 21:47:17,450 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:47:17,451 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 10 [2020-07-19 21:47:17,451 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293190005] [2020-07-19 21:47:17,452 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-19 21:47:17,452 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:47:17,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-19 21:47:17,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-07-19 21:47:17,453 INFO L87 Difference]: Start difference. First operand 34 states and 34 transitions. Second operand 10 states. [2020-07-19 21:47:17,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:47:17,553 INFO L93 Difference]: Finished difference Result 44 states and 44 transitions. [2020-07-19 21:47:17,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-19 21:47:17,555 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 31 [2020-07-19 21:47:17,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:47:17,556 INFO L225 Difference]: With dead ends: 44 [2020-07-19 21:47:17,556 INFO L226 Difference]: Without dead ends: 42 [2020-07-19 21:47:17,557 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2020-07-19 21:47:17,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-07-19 21:47:17,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 41. [2020-07-19 21:47:17,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-07-19 21:47:17,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 41 transitions. [2020-07-19 21:47:17,566 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 41 transitions. Word has length 31 [2020-07-19 21:47:17,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:47:17,566 INFO L479 AbstractCegarLoop]: Abstraction has 41 states and 41 transitions. [2020-07-19 21:47:17,566 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-19 21:47:17,567 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 41 transitions. [2020-07-19 21:47:17,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-07-19 21:47:17,568 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:47:17,568 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:47:17,774 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:47:17,775 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:47:17,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:47:17,776 INFO L82 PathProgramCache]: Analyzing trace with hash 2024617973, now seen corresponding path program 4 times [2020-07-19 21:47:17,777 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:47:17,778 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95032088] [2020-07-19 21:47:17,778 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:47:17,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:17,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:17,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:17,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:17,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:17,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:17,970 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 8 proven. 26 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-07-19 21:47:17,971 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95032088] [2020-07-19 21:47:17,971 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [546384578] [2020-07-19 21:47:17,971 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:47:18,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:18,006 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-19 21:47:18,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:47:18,021 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:47:18,041 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 8 proven. 26 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-07-19 21:47:18,042 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:47:18,042 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2020-07-19 21:47:18,043 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995054539] [2020-07-19 21:47:18,043 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-19 21:47:18,044 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:47:18,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-19 21:47:18,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2020-07-19 21:47:18,044 INFO L87 Difference]: Start difference. First operand 41 states and 41 transitions. Second operand 11 states. [2020-07-19 21:47:18,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:47:18,164 INFO L93 Difference]: Finished difference Result 51 states and 51 transitions. [2020-07-19 21:47:18,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-19 21:47:18,166 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 38 [2020-07-19 21:47:18,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:47:18,169 INFO L225 Difference]: With dead ends: 51 [2020-07-19 21:47:18,169 INFO L226 Difference]: Without dead ends: 49 [2020-07-19 21:47:18,170 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2020-07-19 21:47:18,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-07-19 21:47:18,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 48. [2020-07-19 21:47:18,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-07-19 21:47:18,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 48 transitions. [2020-07-19 21:47:18,190 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 48 transitions. Word has length 38 [2020-07-19 21:47:18,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:47:18,190 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 48 transitions. [2020-07-19 21:47:18,190 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-19 21:47:18,191 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 48 transitions. [2020-07-19 21:47:18,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-07-19 21:47:18,199 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:47:18,200 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:47:18,415 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:47:18,416 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:47:18,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:47:18,418 INFO L82 PathProgramCache]: Analyzing trace with hash 125373896, now seen corresponding path program 5 times [2020-07-19 21:47:18,418 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:47:18,418 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670194793] [2020-07-19 21:47:18,419 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:47:18,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:18,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:18,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:18,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:18,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:18,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:18,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:18,580 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 10 proven. 40 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-07-19 21:47:18,581 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670194793] [2020-07-19 21:47:18,581 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [820222654] [2020-07-19 21:47:18,581 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:47:18,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:18,621 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-19 21:47:18,624 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:47:18,638 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:47:18,659 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 10 proven. 40 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-07-19 21:47:18,659 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:47:18,660 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 12 [2020-07-19 21:47:18,660 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514646712] [2020-07-19 21:47:18,661 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-19 21:47:18,661 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:47:18,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-19 21:47:18,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2020-07-19 21:47:18,662 INFO L87 Difference]: Start difference. First operand 48 states and 48 transitions. Second operand 12 states. [2020-07-19 21:47:18,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:47:18,784 INFO L93 Difference]: Finished difference Result 58 states and 58 transitions. [2020-07-19 21:47:18,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-19 21:47:18,786 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 45 [2020-07-19 21:47:18,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:47:18,787 INFO L225 Difference]: With dead ends: 58 [2020-07-19 21:47:18,787 INFO L226 Difference]: Without dead ends: 56 [2020-07-19 21:47:18,788 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2020-07-19 21:47:18,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-07-19 21:47:18,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 55. [2020-07-19 21:47:18,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-07-19 21:47:18,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 55 transitions. [2020-07-19 21:47:18,798 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 55 transitions. Word has length 45 [2020-07-19 21:47:18,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:47:18,799 INFO L479 AbstractCegarLoop]: Abstraction has 55 states and 55 transitions. [2020-07-19 21:47:18,799 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-19 21:47:18,799 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 55 transitions. [2020-07-19 21:47:18,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-19 21:47:18,800 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:47:18,801 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:47:19,003 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-07-19 21:47:19,004 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:47:19,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:47:19,005 INFO L82 PathProgramCache]: Analyzing trace with hash 1195086997, now seen corresponding path program 6 times [2020-07-19 21:47:19,005 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:47:19,006 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833035992] [2020-07-19 21:47:19,006 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:47:19,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:19,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:19,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:19,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:19,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:19,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:19,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:19,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:19,190 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 12 proven. 57 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-07-19 21:47:19,191 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833035992] [2020-07-19 21:47:19,191 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1721462776] [2020-07-19 21:47:19,191 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:47:19,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:19,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-19 21:47:19,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:47:19,245 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:47:19,279 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 12 proven. 57 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-07-19 21:47:19,280 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:47:19,280 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 13 [2020-07-19 21:47:19,280 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773965792] [2020-07-19 21:47:19,281 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-07-19 21:47:19,281 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:47:19,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-07-19 21:47:19,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-07-19 21:47:19,282 INFO L87 Difference]: Start difference. First operand 55 states and 55 transitions. Second operand 13 states. [2020-07-19 21:47:19,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:47:19,398 INFO L93 Difference]: Finished difference Result 65 states and 65 transitions. [2020-07-19 21:47:19,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-19 21:47:19,399 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 52 [2020-07-19 21:47:19,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:47:19,400 INFO L225 Difference]: With dead ends: 65 [2020-07-19 21:47:19,400 INFO L226 Difference]: Without dead ends: 63 [2020-07-19 21:47:19,401 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-07-19 21:47:19,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-07-19 21:47:19,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 62. [2020-07-19 21:47:19,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-07-19 21:47:19,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 62 transitions. [2020-07-19 21:47:19,410 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 62 transitions. Word has length 52 [2020-07-19 21:47:19,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:47:19,411 INFO L479 AbstractCegarLoop]: Abstraction has 62 states and 62 transitions. [2020-07-19 21:47:19,411 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-07-19 21:47:19,411 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 62 transitions. [2020-07-19 21:47:19,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-07-19 21:47:19,412 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:47:19,412 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:47:19,627 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:47:19,628 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:47:19,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:47:19,628 INFO L82 PathProgramCache]: Analyzing trace with hash 906444072, now seen corresponding path program 7 times [2020-07-19 21:47:19,629 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:47:19,630 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637353201] [2020-07-19 21:47:19,630 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:47:19,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:19,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:19,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:19,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:19,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:19,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:19,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:19,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:19,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:19,802 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 14 proven. 77 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-07-19 21:47:19,802 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637353201] [2020-07-19 21:47:19,802 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2120562179] [2020-07-19 21:47:19,803 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:47:19,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:19,840 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-19 21:47:19,843 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:47:19,857 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:47:19,893 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 14 proven. 77 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-07-19 21:47:19,893 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:47:19,894 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 14 [2020-07-19 21:47:19,894 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887006602] [2020-07-19 21:47:19,894 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-07-19 21:47:19,895 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:47:19,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-07-19 21:47:19,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2020-07-19 21:47:19,897 INFO L87 Difference]: Start difference. First operand 62 states and 62 transitions. Second operand 14 states. [2020-07-19 21:47:20,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:47:20,043 INFO L93 Difference]: Finished difference Result 72 states and 72 transitions. [2020-07-19 21:47:20,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-19 21:47:20,044 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 59 [2020-07-19 21:47:20,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:47:20,045 INFO L225 Difference]: With dead ends: 72 [2020-07-19 21:47:20,045 INFO L226 Difference]: Without dead ends: 70 [2020-07-19 21:47:20,046 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2020-07-19 21:47:20,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-07-19 21:47:20,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 69. [2020-07-19 21:47:20,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-07-19 21:47:20,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 69 transitions. [2020-07-19 21:47:20,055 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 69 transitions. Word has length 59 [2020-07-19 21:47:20,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:47:20,056 INFO L479 AbstractCegarLoop]: Abstraction has 69 states and 69 transitions. [2020-07-19 21:47:20,056 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-07-19 21:47:20,056 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 69 transitions. [2020-07-19 21:47:20,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-07-19 21:47:20,057 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:47:20,057 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:47:20,272 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:47:20,273 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:47:20,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:47:20,273 INFO L82 PathProgramCache]: Analyzing trace with hash -2003085003, now seen corresponding path program 8 times [2020-07-19 21:47:20,274 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:47:20,274 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466572114] [2020-07-19 21:47:20,274 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:47:20,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:20,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:20,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:20,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:20,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:20,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:20,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:20,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:20,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:20,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:20,414 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 16 proven. 100 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-07-19 21:47:20,414 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466572114] [2020-07-19 21:47:20,415 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2054666407] [2020-07-19 21:47:20,415 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:47:20,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:20,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 12 conjunts are in the unsatisfiable core [2020-07-19 21:47:20,473 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:47:20,504 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:47:20,537 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 16 proven. 100 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-07-19 21:47:20,538 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:47:20,538 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 15 [2020-07-19 21:47:20,538 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799580733] [2020-07-19 21:47:20,539 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-07-19 21:47:20,539 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:47:20,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-07-19 21:47:20,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2020-07-19 21:47:20,540 INFO L87 Difference]: Start difference. First operand 69 states and 69 transitions. Second operand 15 states. [2020-07-19 21:47:20,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:47:20,665 INFO L93 Difference]: Finished difference Result 79 states and 79 transitions. [2020-07-19 21:47:20,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-07-19 21:47:20,665 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 66 [2020-07-19 21:47:20,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:47:20,667 INFO L225 Difference]: With dead ends: 79 [2020-07-19 21:47:20,667 INFO L226 Difference]: Without dead ends: 77 [2020-07-19 21:47:20,668 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-07-19 21:47:20,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2020-07-19 21:47:20,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 76. [2020-07-19 21:47:20,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-07-19 21:47:20,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 76 transitions. [2020-07-19 21:47:20,677 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 76 transitions. Word has length 66 [2020-07-19 21:47:20,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:47:20,678 INFO L479 AbstractCegarLoop]: Abstraction has 76 states and 76 transitions. [2020-07-19 21:47:20,678 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-07-19 21:47:20,678 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 76 transitions. [2020-07-19 21:47:20,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-07-19 21:47:20,679 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:47:20,679 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:47:20,893 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2020-07-19 21:47:20,894 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:47:20,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:47:20,895 INFO L82 PathProgramCache]: Analyzing trace with hash -824245112, now seen corresponding path program 9 times [2020-07-19 21:47:20,895 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:47:20,896 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863194698] [2020-07-19 21:47:20,896 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:47:20,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:21,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:21,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:21,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:21,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:21,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:21,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:21,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:21,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:21,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:21,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:21,051 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 18 proven. 126 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2020-07-19 21:47:21,052 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863194698] [2020-07-19 21:47:21,052 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1807467468] [2020-07-19 21:47:21,052 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:47:21,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:21,089 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 13 conjunts are in the unsatisfiable core [2020-07-19 21:47:21,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:47:21,108 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:47:21,144 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 18 proven. 126 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2020-07-19 21:47:21,145 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:47:21,145 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 16 [2020-07-19 21:47:21,145 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235514381] [2020-07-19 21:47:21,146 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-07-19 21:47:21,146 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:47:21,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-07-19 21:47:21,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2020-07-19 21:47:21,147 INFO L87 Difference]: Start difference. First operand 76 states and 76 transitions. Second operand 16 states. [2020-07-19 21:47:21,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:47:21,280 INFO L93 Difference]: Finished difference Result 86 states and 86 transitions. [2020-07-19 21:47:21,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-07-19 21:47:21,286 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 73 [2020-07-19 21:47:21,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:47:21,287 INFO L225 Difference]: With dead ends: 86 [2020-07-19 21:47:21,287 INFO L226 Difference]: Without dead ends: 84 [2020-07-19 21:47:21,288 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2020-07-19 21:47:21,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-07-19 21:47:21,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 83. [2020-07-19 21:47:21,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2020-07-19 21:47:21,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 83 transitions. [2020-07-19 21:47:21,298 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 83 transitions. Word has length 73 [2020-07-19 21:47:21,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:47:21,298 INFO L479 AbstractCegarLoop]: Abstraction has 83 states and 83 transitions. [2020-07-19 21:47:21,298 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-07-19 21:47:21,298 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 83 transitions. [2020-07-19 21:47:21,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-07-19 21:47:21,300 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:47:21,300 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:47:21,503 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:47:21,504 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:47:21,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:47:21,505 INFO L82 PathProgramCache]: Analyzing trace with hash -1640593963, now seen corresponding path program 10 times [2020-07-19 21:47:21,506 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:47:21,506 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677063056] [2020-07-19 21:47:21,506 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:47:21,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:21,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:21,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:21,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:21,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:21,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:21,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:21,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:21,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:21,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:21,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:21,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:21,765 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 20 proven. 155 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2020-07-19 21:47:21,765 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677063056] [2020-07-19 21:47:21,766 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [920123687] [2020-07-19 21:47:21,766 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:47:21,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:21,822 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 14 conjunts are in the unsatisfiable core [2020-07-19 21:47:21,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:47:21,882 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:47:21,927 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 20 proven. 155 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2020-07-19 21:47:21,929 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:47:21,929 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 17 [2020-07-19 21:47:21,930 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160107096] [2020-07-19 21:47:21,931 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-07-19 21:47:21,931 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:47:21,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-07-19 21:47:21,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2020-07-19 21:47:21,933 INFO L87 Difference]: Start difference. First operand 83 states and 83 transitions. Second operand 17 states. [2020-07-19 21:47:22,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:47:22,122 INFO L93 Difference]: Finished difference Result 93 states and 93 transitions. [2020-07-19 21:47:22,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-07-19 21:47:22,122 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 80 [2020-07-19 21:47:22,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:47:22,124 INFO L225 Difference]: With dead ends: 93 [2020-07-19 21:47:22,124 INFO L226 Difference]: Without dead ends: 91 [2020-07-19 21:47:22,124 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=94, Invalid=212, Unknown=0, NotChecked=0, Total=306 [2020-07-19 21:47:22,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2020-07-19 21:47:22,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 90. [2020-07-19 21:47:22,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-07-19 21:47:22,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 90 transitions. [2020-07-19 21:47:22,144 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 90 transitions. Word has length 80 [2020-07-19 21:47:22,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:47:22,145 INFO L479 AbstractCegarLoop]: Abstraction has 90 states and 90 transitions. [2020-07-19 21:47:22,145 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-07-19 21:47:22,145 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 90 transitions. [2020-07-19 21:47:22,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-07-19 21:47:22,149 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:47:22,149 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:47:22,365 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:47:22,366 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:47:22,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:47:22,367 INFO L82 PathProgramCache]: Analyzing trace with hash -447323160, now seen corresponding path program 11 times [2020-07-19 21:47:22,367 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:47:22,368 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567740437] [2020-07-19 21:47:22,368 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:47:22,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:22,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:22,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:22,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:22,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:22,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:22,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:22,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:22,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:22,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:22,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:22,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:22,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:22,567 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 22 proven. 187 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2020-07-19 21:47:22,567 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567740437] [2020-07-19 21:47:22,567 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [91614227] [2020-07-19 21:47:22,568 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:47:22,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:22,612 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-19 21:47:22,614 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:47:22,635 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:47:22,670 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 22 proven. 187 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2020-07-19 21:47:22,671 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:47:22,671 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 18 [2020-07-19 21:47:22,671 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810150133] [2020-07-19 21:47:22,672 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-07-19 21:47:22,673 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:47:22,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-07-19 21:47:22,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=205, Unknown=0, NotChecked=0, Total=306 [2020-07-19 21:47:22,674 INFO L87 Difference]: Start difference. First operand 90 states and 90 transitions. Second operand 18 states. [2020-07-19 21:47:22,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:47:22,861 INFO L93 Difference]: Finished difference Result 100 states and 100 transitions. [2020-07-19 21:47:22,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-07-19 21:47:22,862 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 87 [2020-07-19 21:47:22,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:47:22,865 INFO L225 Difference]: With dead ends: 100 [2020-07-19 21:47:22,865 INFO L226 Difference]: Without dead ends: 98 [2020-07-19 21:47:22,866 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=235, Unknown=0, NotChecked=0, Total=342 [2020-07-19 21:47:22,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-07-19 21:47:22,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 97. [2020-07-19 21:47:22,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-07-19 21:47:22,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 97 transitions. [2020-07-19 21:47:22,878 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 97 transitions. Word has length 87 [2020-07-19 21:47:22,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:47:22,878 INFO L479 AbstractCegarLoop]: Abstraction has 97 states and 97 transitions. [2020-07-19 21:47:22,878 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-07-19 21:47:22,879 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 97 transitions. [2020-07-19 21:47:22,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-07-19 21:47:22,880 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:47:22,881 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:47:23,097 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2020-07-19 21:47:23,098 INFO L427 AbstractCegarLoop]: === Iteration 13 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:47:23,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:47:23,099 INFO L82 PathProgramCache]: Analyzing trace with hash 670505589, now seen corresponding path program 12 times [2020-07-19 21:47:23,099 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:47:23,099 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774724194] [2020-07-19 21:47:23,100 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:47:23,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:23,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:23,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:23,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:23,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:23,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:23,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:23,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:23,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:23,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:23,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:23,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:23,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:23,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:23,325 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 24 proven. 222 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2020-07-19 21:47:23,325 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774724194] [2020-07-19 21:47:23,326 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [918243802] [2020-07-19 21:47:23,326 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:47:23,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:23,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 16 conjunts are in the unsatisfiable core [2020-07-19 21:47:23,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:47:23,404 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:47:23,445 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 24 proven. 222 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2020-07-19 21:47:23,446 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:47:23,447 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 19 [2020-07-19 21:47:23,447 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467327330] [2020-07-19 21:47:23,448 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-07-19 21:47:23,448 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:47:23,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-07-19 21:47:23,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=227, Unknown=0, NotChecked=0, Total=342 [2020-07-19 21:47:23,450 INFO L87 Difference]: Start difference. First operand 97 states and 97 transitions. Second operand 19 states. [2020-07-19 21:47:23,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:47:23,594 INFO L93 Difference]: Finished difference Result 107 states and 107 transitions. [2020-07-19 21:47:23,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-07-19 21:47:23,595 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 94 [2020-07-19 21:47:23,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:47:23,596 INFO L225 Difference]: With dead ends: 107 [2020-07-19 21:47:23,596 INFO L226 Difference]: Without dead ends: 105 [2020-07-19 21:47:23,597 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=121, Invalid=259, Unknown=0, NotChecked=0, Total=380 [2020-07-19 21:47:23,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2020-07-19 21:47:23,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 104. [2020-07-19 21:47:23,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-07-19 21:47:23,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 104 transitions. [2020-07-19 21:47:23,612 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 104 transitions. Word has length 94 [2020-07-19 21:47:23,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:47:23,612 INFO L479 AbstractCegarLoop]: Abstraction has 104 states and 104 transitions. [2020-07-19 21:47:23,612 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-07-19 21:47:23,612 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 104 transitions. [2020-07-19 21:47:23,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-07-19 21:47:23,614 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:47:23,614 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:47:23,821 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2020-07-19 21:47:23,822 INFO L427 AbstractCegarLoop]: === Iteration 14 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:47:23,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:47:23,823 INFO L82 PathProgramCache]: Analyzing trace with hash -29140152, now seen corresponding path program 13 times [2020-07-19 21:47:23,823 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:47:23,823 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962618894] [2020-07-19 21:47:23,824 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:47:23,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:24,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:24,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:24,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:24,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:24,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:24,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:24,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:24,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:24,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:24,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:24,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:24,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:24,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:24,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:24,068 INFO L134 CoverageAnalysis]: Checked inductivity of 598 backedges. 26 proven. 260 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2020-07-19 21:47:24,068 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962618894] [2020-07-19 21:47:24,069 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [924988218] [2020-07-19 21:47:24,069 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:47:24,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:24,116 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 17 conjunts are in the unsatisfiable core [2020-07-19 21:47:24,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:47:24,135 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:47:24,181 INFO L134 CoverageAnalysis]: Checked inductivity of 598 backedges. 26 proven. 260 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2020-07-19 21:47:24,182 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:47:24,182 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 20 [2020-07-19 21:47:24,183 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892613858] [2020-07-19 21:47:24,183 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-07-19 21:47:24,183 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:47:24,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-07-19 21:47:24,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=250, Unknown=0, NotChecked=0, Total=380 [2020-07-19 21:47:24,184 INFO L87 Difference]: Start difference. First operand 104 states and 104 transitions. Second operand 20 states. [2020-07-19 21:47:24,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:47:24,365 INFO L93 Difference]: Finished difference Result 114 states and 114 transitions. [2020-07-19 21:47:24,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-07-19 21:47:24,365 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 101 [2020-07-19 21:47:24,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:47:24,367 INFO L225 Difference]: With dead ends: 114 [2020-07-19 21:47:24,367 INFO L226 Difference]: Without dead ends: 112 [2020-07-19 21:47:24,368 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=284, Unknown=0, NotChecked=0, Total=420 [2020-07-19 21:47:24,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-07-19 21:47:24,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 111. [2020-07-19 21:47:24,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2020-07-19 21:47:24,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 111 transitions. [2020-07-19 21:47:24,375 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 111 transitions. Word has length 101 [2020-07-19 21:47:24,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:47:24,375 INFO L479 AbstractCegarLoop]: Abstraction has 111 states and 111 transitions. [2020-07-19 21:47:24,375 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-07-19 21:47:24,375 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 111 transitions. [2020-07-19 21:47:24,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-07-19 21:47:24,377 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:47:24,377 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:47:24,591 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2020-07-19 21:47:24,592 INFO L427 AbstractCegarLoop]: === Iteration 15 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:47:24,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:47:24,593 INFO L82 PathProgramCache]: Analyzing trace with hash -1538844907, now seen corresponding path program 14 times [2020-07-19 21:47:24,593 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:47:24,594 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016806274] [2020-07-19 21:47:24,594 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:47:24,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:24,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:24,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:24,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:24,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:24,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:24,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:24,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:24,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:24,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:24,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:24,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:24,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:24,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:24,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:24,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:24,839 INFO L134 CoverageAnalysis]: Checked inductivity of 693 backedges. 28 proven. 301 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2020-07-19 21:47:24,839 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016806274] [2020-07-19 21:47:24,840 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1216603994] [2020-07-19 21:47:24,840 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:47:24,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:24,891 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 18 conjunts are in the unsatisfiable core [2020-07-19 21:47:24,894 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:47:24,913 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:47:24,960 INFO L134 CoverageAnalysis]: Checked inductivity of 693 backedges. 28 proven. 301 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2020-07-19 21:47:24,961 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:47:24,961 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 21 [2020-07-19 21:47:24,961 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865113659] [2020-07-19 21:47:24,962 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-07-19 21:47:24,962 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:47:24,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-07-19 21:47:24,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=274, Unknown=0, NotChecked=0, Total=420 [2020-07-19 21:47:24,963 INFO L87 Difference]: Start difference. First operand 111 states and 111 transitions. Second operand 21 states. [2020-07-19 21:47:25,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:47:25,153 INFO L93 Difference]: Finished difference Result 121 states and 121 transitions. [2020-07-19 21:47:25,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-07-19 21:47:25,154 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 108 [2020-07-19 21:47:25,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:47:25,155 INFO L225 Difference]: With dead ends: 121 [2020-07-19 21:47:25,155 INFO L226 Difference]: Without dead ends: 119 [2020-07-19 21:47:25,156 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=152, Invalid=310, Unknown=0, NotChecked=0, Total=462 [2020-07-19 21:47:25,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-07-19 21:47:25,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 118. [2020-07-19 21:47:25,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2020-07-19 21:47:25,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 118 transitions. [2020-07-19 21:47:25,164 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 118 transitions. Word has length 108 [2020-07-19 21:47:25,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:47:25,164 INFO L479 AbstractCegarLoop]: Abstraction has 118 states and 118 transitions. [2020-07-19 21:47:25,164 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-07-19 21:47:25,164 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 118 transitions. [2020-07-19 21:47:25,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-07-19 21:47:25,166 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:47:25,166 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 16, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:47:25,379 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:47:25,380 INFO L427 AbstractCegarLoop]: === Iteration 16 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:47:25,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:47:25,381 INFO L82 PathProgramCache]: Analyzing trace with hash 1878780584, now seen corresponding path program 15 times [2020-07-19 21:47:25,381 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:47:25,382 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978327477] [2020-07-19 21:47:25,382 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:47:25,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:25,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:25,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:25,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:25,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:25,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:25,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:25,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:25,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:25,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:25,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:25,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:25,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:25,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:25,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:25,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:25,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:25,666 INFO L134 CoverageAnalysis]: Checked inductivity of 795 backedges. 30 proven. 345 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2020-07-19 21:47:25,667 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978327477] [2020-07-19 21:47:25,667 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [891433925] [2020-07-19 21:47:25,667 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:47:25,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:25,724 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 19 conjunts are in the unsatisfiable core [2020-07-19 21:47:25,727 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:47:25,752 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:47:25,788 INFO L134 CoverageAnalysis]: Checked inductivity of 795 backedges. 30 proven. 345 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2020-07-19 21:47:25,788 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:47:25,788 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 22 [2020-07-19 21:47:25,789 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3440734] [2020-07-19 21:47:25,790 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-07-19 21:47:25,791 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:47:25,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-07-19 21:47:25,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=163, Invalid=299, Unknown=0, NotChecked=0, Total=462 [2020-07-19 21:47:25,792 INFO L87 Difference]: Start difference. First operand 118 states and 118 transitions. Second operand 22 states. [2020-07-19 21:47:25,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:47:25,962 INFO L93 Difference]: Finished difference Result 128 states and 128 transitions. [2020-07-19 21:47:25,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-07-19 21:47:25,963 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 115 [2020-07-19 21:47:25,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:47:25,964 INFO L225 Difference]: With dead ends: 128 [2020-07-19 21:47:25,965 INFO L226 Difference]: Without dead ends: 126 [2020-07-19 21:47:25,965 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=169, Invalid=337, Unknown=0, NotChecked=0, Total=506 [2020-07-19 21:47:25,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2020-07-19 21:47:25,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 125. [2020-07-19 21:47:25,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-07-19 21:47:25,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 125 transitions. [2020-07-19 21:47:25,979 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 125 transitions. Word has length 115 [2020-07-19 21:47:25,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:47:25,979 INFO L479 AbstractCegarLoop]: Abstraction has 125 states and 125 transitions. [2020-07-19 21:47:25,979 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-07-19 21:47:25,980 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 125 transitions. [2020-07-19 21:47:25,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-07-19 21:47:25,981 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:47:25,981 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 17, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:47:26,195 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2020-07-19 21:47:26,196 INFO L427 AbstractCegarLoop]: === Iteration 17 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:47:26,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:47:26,196 INFO L82 PathProgramCache]: Analyzing trace with hash 269515701, now seen corresponding path program 16 times [2020-07-19 21:47:26,196 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:47:26,197 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229699149] [2020-07-19 21:47:26,197 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:47:26,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:26,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:26,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:26,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:26,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:26,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:26,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:26,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:26,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:26,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:26,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:26,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:26,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:26,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:26,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:26,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:26,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:26,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:26,470 INFO L134 CoverageAnalysis]: Checked inductivity of 904 backedges. 32 proven. 392 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2020-07-19 21:47:26,470 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229699149] [2020-07-19 21:47:26,470 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [922106580] [2020-07-19 21:47:26,471 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:47:26,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:26,537 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 20 conjunts are in the unsatisfiable core [2020-07-19 21:47:26,540 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:47:26,564 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:47:26,604 INFO L134 CoverageAnalysis]: Checked inductivity of 904 backedges. 32 proven. 392 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2020-07-19 21:47:26,604 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:47:26,604 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 23 [2020-07-19 21:47:26,605 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389304607] [2020-07-19 21:47:26,605 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-07-19 21:47:26,605 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:47:26,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-07-19 21:47:26,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=181, Invalid=325, Unknown=0, NotChecked=0, Total=506 [2020-07-19 21:47:26,606 INFO L87 Difference]: Start difference. First operand 125 states and 125 transitions. Second operand 23 states. [2020-07-19 21:47:26,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:47:26,778 INFO L93 Difference]: Finished difference Result 135 states and 135 transitions. [2020-07-19 21:47:26,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-07-19 21:47:26,778 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 122 [2020-07-19 21:47:26,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:47:26,780 INFO L225 Difference]: With dead ends: 135 [2020-07-19 21:47:26,780 INFO L226 Difference]: Without dead ends: 133 [2020-07-19 21:47:26,781 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=187, Invalid=365, Unknown=0, NotChecked=0, Total=552 [2020-07-19 21:47:26,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2020-07-19 21:47:26,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 132. [2020-07-19 21:47:26,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-07-19 21:47:26,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 132 transitions. [2020-07-19 21:47:26,788 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 132 transitions. Word has length 122 [2020-07-19 21:47:26,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:47:26,788 INFO L479 AbstractCegarLoop]: Abstraction has 132 states and 132 transitions. [2020-07-19 21:47:26,789 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-07-19 21:47:26,789 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 132 transitions. [2020-07-19 21:47:26,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-07-19 21:47:26,790 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:47:26,790 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 18, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:47:27,004 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2020-07-19 21:47:27,005 INFO L427 AbstractCegarLoop]: === Iteration 18 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:47:27,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:47:27,006 INFO L82 PathProgramCache]: Analyzing trace with hash -1034546680, now seen corresponding path program 17 times [2020-07-19 21:47:27,006 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:47:27,007 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617100238] [2020-07-19 21:47:27,007 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:47:27,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:27,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:27,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:27,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:27,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:27,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:27,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:27,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:27,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:27,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:27,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:27,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:27,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:27,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:27,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:27,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:27,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:27,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:27,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:27,392 INFO L134 CoverageAnalysis]: Checked inductivity of 1020 backedges. 34 proven. 442 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2020-07-19 21:47:27,392 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617100238] [2020-07-19 21:47:27,393 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [403518904] [2020-07-19 21:47:27,393 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:47:27,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:27,466 INFO L263 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 21 conjunts are in the unsatisfiable core [2020-07-19 21:47:27,470 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:47:27,497 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:47:27,573 INFO L134 CoverageAnalysis]: Checked inductivity of 1020 backedges. 34 proven. 442 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2020-07-19 21:47:27,573 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:47:27,574 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 24 [2020-07-19 21:47:27,574 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63752478] [2020-07-19 21:47:27,577 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-07-19 21:47:27,577 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:47:27,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-07-19 21:47:27,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=200, Invalid=352, Unknown=0, NotChecked=0, Total=552 [2020-07-19 21:47:27,579 INFO L87 Difference]: Start difference. First operand 132 states and 132 transitions. Second operand 24 states. [2020-07-19 21:47:27,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:47:27,884 INFO L93 Difference]: Finished difference Result 142 states and 142 transitions. [2020-07-19 21:47:27,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-07-19 21:47:27,885 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 129 [2020-07-19 21:47:27,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:47:27,888 INFO L225 Difference]: With dead ends: 142 [2020-07-19 21:47:27,888 INFO L226 Difference]: Without dead ends: 140 [2020-07-19 21:47:27,889 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=206, Invalid=394, Unknown=0, NotChecked=0, Total=600 [2020-07-19 21:47:27,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-07-19 21:47:27,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 139. [2020-07-19 21:47:27,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2020-07-19 21:47:27,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 139 transitions. [2020-07-19 21:47:27,900 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 139 transitions. Word has length 129 [2020-07-19 21:47:27,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:47:27,901 INFO L479 AbstractCegarLoop]: Abstraction has 139 states and 139 transitions. [2020-07-19 21:47:27,901 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-07-19 21:47:27,901 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 139 transitions. [2020-07-19 21:47:27,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-07-19 21:47:27,904 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:47:27,904 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 19, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:47:28,117 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2020-07-19 21:47:28,118 INFO L427 AbstractCegarLoop]: === Iteration 19 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:47:28,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:47:28,119 INFO L82 PathProgramCache]: Analyzing trace with hash -2034415531, now seen corresponding path program 18 times [2020-07-19 21:47:28,119 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:47:28,119 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882889498] [2020-07-19 21:47:28,120 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:47:28,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:28,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:28,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:28,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:28,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:28,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:28,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:28,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:28,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:28,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:28,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:28,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:28,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:28,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:28,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:28,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:28,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:28,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:28,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:28,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:28,590 INFO L134 CoverageAnalysis]: Checked inductivity of 1143 backedges. 36 proven. 495 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2020-07-19 21:47:28,591 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882889498] [2020-07-19 21:47:28,591 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1449302512] [2020-07-19 21:47:28,591 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:47:28,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:28,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 22 conjunts are in the unsatisfiable core [2020-07-19 21:47:28,677 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:47:28,703 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:47:28,771 INFO L134 CoverageAnalysis]: Checked inductivity of 1143 backedges. 36 proven. 495 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2020-07-19 21:47:28,772 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:47:28,772 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23] total 25 [2020-07-19 21:47:28,772 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559693770] [2020-07-19 21:47:28,774 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-07-19 21:47:28,775 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:47:28,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-07-19 21:47:28,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=220, Invalid=380, Unknown=0, NotChecked=0, Total=600 [2020-07-19 21:47:28,776 INFO L87 Difference]: Start difference. First operand 139 states and 139 transitions. Second operand 25 states. [2020-07-19 21:47:29,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:47:29,031 INFO L93 Difference]: Finished difference Result 149 states and 149 transitions. [2020-07-19 21:47:29,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-07-19 21:47:29,034 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 136 [2020-07-19 21:47:29,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:47:29,036 INFO L225 Difference]: With dead ends: 149 [2020-07-19 21:47:29,037 INFO L226 Difference]: Without dead ends: 147 [2020-07-19 21:47:29,038 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=226, Invalid=424, Unknown=0, NotChecked=0, Total=650 [2020-07-19 21:47:29,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2020-07-19 21:47:29,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 146. [2020-07-19 21:47:29,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-07-19 21:47:29,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 146 transitions. [2020-07-19 21:47:29,051 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 146 transitions. Word has length 136 [2020-07-19 21:47:29,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:47:29,052 INFO L479 AbstractCegarLoop]: Abstraction has 146 states and 146 transitions. [2020-07-19 21:47:29,052 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-07-19 21:47:29,052 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 146 transitions. [2020-07-19 21:47:29,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-07-19 21:47:29,058 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:47:29,059 INFO L422 BasicCegarLoop]: trace histogram [20, 20, 20, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:47:29,273 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,19 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:47:29,274 INFO L427 AbstractCegarLoop]: === Iteration 20 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:47:29,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:47:29,274 INFO L82 PathProgramCache]: Analyzing trace with hash 245879144, now seen corresponding path program 19 times [2020-07-19 21:47:29,275 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:47:29,275 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374270682] [2020-07-19 21:47:29,275 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:47:29,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:29,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:29,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:29,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:29,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:29,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:29,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:29,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:29,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:29,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:29,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:29,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:29,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:29,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:29,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:29,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:29,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:29,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:29,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:29,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:29,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:29,668 INFO L134 CoverageAnalysis]: Checked inductivity of 1273 backedges. 38 proven. 551 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2020-07-19 21:47:29,669 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374270682] [2020-07-19 21:47:29,669 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1015710565] [2020-07-19 21:47:29,669 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:47:29,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:29,721 INFO L263 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 23 conjunts are in the unsatisfiable core [2020-07-19 21:47:29,723 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:47:29,745 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:47:29,808 INFO L134 CoverageAnalysis]: Checked inductivity of 1273 backedges. 38 proven. 551 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2020-07-19 21:47:29,808 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:47:29,808 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24] total 26 [2020-07-19 21:47:29,809 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110939315] [2020-07-19 21:47:29,810 INFO L459 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-07-19 21:47:29,810 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:47:29,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-07-19 21:47:29,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=241, Invalid=409, Unknown=0, NotChecked=0, Total=650 [2020-07-19 21:47:29,811 INFO L87 Difference]: Start difference. First operand 146 states and 146 transitions. Second operand 26 states. [2020-07-19 21:47:30,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:47:30,050 INFO L93 Difference]: Finished difference Result 156 states and 156 transitions. [2020-07-19 21:47:30,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-07-19 21:47:30,053 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 143 [2020-07-19 21:47:30,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:47:30,055 INFO L225 Difference]: With dead ends: 156 [2020-07-19 21:47:30,055 INFO L226 Difference]: Without dead ends: 154 [2020-07-19 21:47:30,056 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=247, Invalid=455, Unknown=0, NotChecked=0, Total=702 [2020-07-19 21:47:30,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-07-19 21:47:30,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 153. [2020-07-19 21:47:30,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2020-07-19 21:47:30,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 153 transitions. [2020-07-19 21:47:30,068 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 153 transitions. Word has length 143 [2020-07-19 21:47:30,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:47:30,069 INFO L479 AbstractCegarLoop]: Abstraction has 153 states and 153 transitions. [2020-07-19 21:47:30,069 INFO L480 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-07-19 21:47:30,069 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 153 transitions. [2020-07-19 21:47:30,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-07-19 21:47:30,071 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:47:30,071 INFO L422 BasicCegarLoop]: trace histogram [21, 21, 21, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:47:30,285 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,20 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:47:30,286 INFO L427 AbstractCegarLoop]: === Iteration 21 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:47:30,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:47:30,287 INFO L82 PathProgramCache]: Analyzing trace with hash -499680011, now seen corresponding path program 20 times [2020-07-19 21:47:30,288 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:47:30,288 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794346931] [2020-07-19 21:47:30,289 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:47:30,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:30,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:30,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:30,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:30,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:30,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:30,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:30,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:30,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:30,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:30,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:30,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:30,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:30,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:30,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:30,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:30,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:30,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:30,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:30,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:30,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:30,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:30,767 INFO L134 CoverageAnalysis]: Checked inductivity of 1410 backedges. 40 proven. 610 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2020-07-19 21:47:30,768 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794346931] [2020-07-19 21:47:30,768 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2048696211] [2020-07-19 21:47:30,768 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:47:30,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:30,854 INFO L263 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 24 conjunts are in the unsatisfiable core [2020-07-19 21:47:30,857 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:47:30,887 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:47:30,958 INFO L134 CoverageAnalysis]: Checked inductivity of 1410 backedges. 40 proven. 610 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2020-07-19 21:47:30,959 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:47:30,959 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 27 [2020-07-19 21:47:30,960 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179711004] [2020-07-19 21:47:30,963 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-07-19 21:47:30,964 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:47:30,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-07-19 21:47:30,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=263, Invalid=439, Unknown=0, NotChecked=0, Total=702 [2020-07-19 21:47:30,965 INFO L87 Difference]: Start difference. First operand 153 states and 153 transitions. Second operand 27 states. [2020-07-19 21:47:31,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:47:31,293 INFO L93 Difference]: Finished difference Result 163 states and 163 transitions. [2020-07-19 21:47:31,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-07-19 21:47:31,293 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 150 [2020-07-19 21:47:31,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:47:31,295 INFO L225 Difference]: With dead ends: 163 [2020-07-19 21:47:31,295 INFO L226 Difference]: Without dead ends: 161 [2020-07-19 21:47:31,296 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=269, Invalid=487, Unknown=0, NotChecked=0, Total=756 [2020-07-19 21:47:31,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2020-07-19 21:47:31,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 160. [2020-07-19 21:47:31,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2020-07-19 21:47:31,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 160 transitions. [2020-07-19 21:47:31,307 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 160 transitions. Word has length 150 [2020-07-19 21:47:31,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:47:31,309 INFO L479 AbstractCegarLoop]: Abstraction has 160 states and 160 transitions. [2020-07-19 21:47:31,309 INFO L480 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-07-19 21:47:31,309 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 160 transitions. [2020-07-19 21:47:31,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-07-19 21:47:31,312 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:47:31,312 INFO L422 BasicCegarLoop]: trace histogram [22, 22, 22, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:47:31,526 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2020-07-19 21:47:31,527 INFO L427 AbstractCegarLoop]: === Iteration 22 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:47:31,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:47:31,527 INFO L82 PathProgramCache]: Analyzing trace with hash 1606887624, now seen corresponding path program 21 times [2020-07-19 21:47:31,527 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:47:31,528 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810571639] [2020-07-19 21:47:31,528 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:47:31,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:31,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:31,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:31,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:31,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:31,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:31,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:31,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:31,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:31,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:31,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:31,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:31,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:31,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:31,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:31,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:31,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:31,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:31,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:31,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:31,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:31,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:31,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:31,961 INFO L134 CoverageAnalysis]: Checked inductivity of 1554 backedges. 42 proven. 672 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2020-07-19 21:47:31,961 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810571639] [2020-07-19 21:47:31,961 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1091290096] [2020-07-19 21:47:31,962 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:47:32,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:32,025 INFO L263 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 25 conjunts are in the unsatisfiable core [2020-07-19 21:47:32,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:47:32,049 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:47:32,120 INFO L134 CoverageAnalysis]: Checked inductivity of 1554 backedges. 42 proven. 672 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2020-07-19 21:47:32,120 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:47:32,121 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 28 [2020-07-19 21:47:32,121 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159320840] [2020-07-19 21:47:32,122 INFO L459 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-07-19 21:47:32,122 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:47:32,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-07-19 21:47:32,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=286, Invalid=470, Unknown=0, NotChecked=0, Total=756 [2020-07-19 21:47:32,123 INFO L87 Difference]: Start difference. First operand 160 states and 160 transitions. Second operand 28 states. [2020-07-19 21:47:32,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:47:32,427 INFO L93 Difference]: Finished difference Result 170 states and 170 transitions. [2020-07-19 21:47:32,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-07-19 21:47:32,432 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 157 [2020-07-19 21:47:32,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:47:32,433 INFO L225 Difference]: With dead ends: 170 [2020-07-19 21:47:32,433 INFO L226 Difference]: Without dead ends: 168 [2020-07-19 21:47:32,434 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=292, Invalid=520, Unknown=0, NotChecked=0, Total=812 [2020-07-19 21:47:32,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2020-07-19 21:47:32,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 167. [2020-07-19 21:47:32,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2020-07-19 21:47:32,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 167 transitions. [2020-07-19 21:47:32,446 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 167 transitions. Word has length 157 [2020-07-19 21:47:32,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:47:32,447 INFO L479 AbstractCegarLoop]: Abstraction has 167 states and 167 transitions. [2020-07-19 21:47:32,447 INFO L480 AbstractCegarLoop]: Interpolant automaton has 28 states. [2020-07-19 21:47:32,447 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 167 transitions. [2020-07-19 21:47:32,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-07-19 21:47:32,450 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:47:32,451 INFO L422 BasicCegarLoop]: trace histogram [23, 23, 23, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:47:32,665 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2020-07-19 21:47:32,665 INFO L427 AbstractCegarLoop]: === Iteration 23 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:47:32,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:47:32,666 INFO L82 PathProgramCache]: Analyzing trace with hash 1525225877, now seen corresponding path program 22 times [2020-07-19 21:47:32,667 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:47:32,667 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437073171] [2020-07-19 21:47:32,667 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:47:32,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:33,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:33,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:33,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:33,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:33,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:33,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:33,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:33,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:33,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:33,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:33,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:33,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:33,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:33,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:33,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:33,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:33,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:33,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:33,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:33,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:33,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:33,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:33,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:33,172 INFO L134 CoverageAnalysis]: Checked inductivity of 1705 backedges. 44 proven. 737 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2020-07-19 21:47:33,172 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437073171] [2020-07-19 21:47:33,172 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1688333144] [2020-07-19 21:47:33,173 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:47:33,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:33,230 INFO L263 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 26 conjunts are in the unsatisfiable core [2020-07-19 21:47:33,234 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:47:33,261 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:47:33,328 INFO L134 CoverageAnalysis]: Checked inductivity of 1705 backedges. 44 proven. 737 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2020-07-19 21:47:33,329 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:47:33,329 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27] total 29 [2020-07-19 21:47:33,330 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482490706] [2020-07-19 21:47:33,331 INFO L459 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-07-19 21:47:33,331 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:47:33,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-07-19 21:47:33,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=310, Invalid=502, Unknown=0, NotChecked=0, Total=812 [2020-07-19 21:47:33,332 INFO L87 Difference]: Start difference. First operand 167 states and 167 transitions. Second operand 29 states. [2020-07-19 21:47:33,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:47:33,620 INFO L93 Difference]: Finished difference Result 177 states and 177 transitions. [2020-07-19 21:47:33,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-07-19 21:47:33,621 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 164 [2020-07-19 21:47:33,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:47:33,623 INFO L225 Difference]: With dead ends: 177 [2020-07-19 21:47:33,623 INFO L226 Difference]: Without dead ends: 175 [2020-07-19 21:47:33,624 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=316, Invalid=554, Unknown=0, NotChecked=0, Total=870 [2020-07-19 21:47:33,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2020-07-19 21:47:33,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 174. [2020-07-19 21:47:33,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2020-07-19 21:47:33,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 174 transitions. [2020-07-19 21:47:33,632 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 174 transitions. Word has length 164 [2020-07-19 21:47:33,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:47:33,632 INFO L479 AbstractCegarLoop]: Abstraction has 174 states and 174 transitions. [2020-07-19 21:47:33,632 INFO L480 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-07-19 21:47:33,632 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 174 transitions. [2020-07-19 21:47:33,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-07-19 21:47:33,634 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:47:33,635 INFO L422 BasicCegarLoop]: trace histogram [24, 24, 24, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:47:33,847 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:47:33,848 INFO L427 AbstractCegarLoop]: === Iteration 24 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:47:33,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:47:33,849 INFO L82 PathProgramCache]: Analyzing trace with hash 302651432, now seen corresponding path program 23 times [2020-07-19 21:47:33,849 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:47:33,849 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795136445] [2020-07-19 21:47:33,849 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:47:33,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:34,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:34,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:34,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:34,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:34,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:34,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:34,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:34,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:34,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:34,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:34,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:34,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:34,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:34,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:34,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:34,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:34,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:34,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:34,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:34,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:34,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:34,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:34,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:34,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:34,432 INFO L134 CoverageAnalysis]: Checked inductivity of 1863 backedges. 46 proven. 805 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2020-07-19 21:47:34,432 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795136445] [2020-07-19 21:47:34,433 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1231183215] [2020-07-19 21:47:34,433 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:47:34,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:34,498 INFO L263 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 27 conjunts are in the unsatisfiable core [2020-07-19 21:47:34,503 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:47:34,530 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:47:34,606 INFO L134 CoverageAnalysis]: Checked inductivity of 1863 backedges. 46 proven. 805 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2020-07-19 21:47:34,606 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:47:34,606 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28] total 30 [2020-07-19 21:47:34,607 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175299870] [2020-07-19 21:47:34,607 INFO L459 AbstractCegarLoop]: Interpolant automaton has 30 states [2020-07-19 21:47:34,607 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:47:34,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2020-07-19 21:47:34,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=335, Invalid=535, Unknown=0, NotChecked=0, Total=870 [2020-07-19 21:47:34,608 INFO L87 Difference]: Start difference. First operand 174 states and 174 transitions. Second operand 30 states. [2020-07-19 21:47:34,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:47:34,929 INFO L93 Difference]: Finished difference Result 184 states and 184 transitions. [2020-07-19 21:47:34,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-07-19 21:47:34,931 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 171 [2020-07-19 21:47:34,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:47:34,932 INFO L225 Difference]: With dead ends: 184 [2020-07-19 21:47:34,932 INFO L226 Difference]: Without dead ends: 182 [2020-07-19 21:47:34,933 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=341, Invalid=589, Unknown=0, NotChecked=0, Total=930 [2020-07-19 21:47:34,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2020-07-19 21:47:34,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 181. [2020-07-19 21:47:34,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2020-07-19 21:47:34,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 181 transitions. [2020-07-19 21:47:34,941 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 181 transitions. Word has length 171 [2020-07-19 21:47:34,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:47:34,942 INFO L479 AbstractCegarLoop]: Abstraction has 181 states and 181 transitions. [2020-07-19 21:47:34,942 INFO L480 AbstractCegarLoop]: Interpolant automaton has 30 states. [2020-07-19 21:47:34,942 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 181 transitions. [2020-07-19 21:47:34,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-07-19 21:47:34,943 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:47:34,943 INFO L422 BasicCegarLoop]: trace histogram [25, 25, 25, 24, 24, 24, 24, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:47:35,156 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2020-07-19 21:47:35,157 INFO L427 AbstractCegarLoop]: === Iteration 25 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:47:35,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:47:35,158 INFO L82 PathProgramCache]: Analyzing trace with hash 666639925, now seen corresponding path program 24 times [2020-07-19 21:47:35,158 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:47:35,159 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996410163] [2020-07-19 21:47:35,159 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:47:35,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:35,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:35,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:35,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:35,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:35,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:35,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:35,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:35,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:35,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:35,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:35,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:35,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:35,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:35,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:35,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:35,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:35,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:35,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:35,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:35,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:35,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:35,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:35,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:35,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:35,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:35,638 INFO L134 CoverageAnalysis]: Checked inductivity of 2028 backedges. 48 proven. 876 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2020-07-19 21:47:35,638 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996410163] [2020-07-19 21:47:35,638 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [35869013] [2020-07-19 21:47:35,638 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:47:35,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:35,695 INFO L263 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 28 conjunts are in the unsatisfiable core [2020-07-19 21:47:35,698 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:47:35,713 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:47:35,775 INFO L134 CoverageAnalysis]: Checked inductivity of 2028 backedges. 48 proven. 876 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2020-07-19 21:47:35,776 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:47:35,776 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 29] total 31 [2020-07-19 21:47:35,776 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593091094] [2020-07-19 21:47:35,777 INFO L459 AbstractCegarLoop]: Interpolant automaton has 31 states [2020-07-19 21:47:35,777 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:47:35,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2020-07-19 21:47:35,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=361, Invalid=569, Unknown=0, NotChecked=0, Total=930 [2020-07-19 21:47:35,778 INFO L87 Difference]: Start difference. First operand 181 states and 181 transitions. Second operand 31 states. [2020-07-19 21:47:36,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:47:36,097 INFO L93 Difference]: Finished difference Result 191 states and 191 transitions. [2020-07-19 21:47:36,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-07-19 21:47:36,097 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 178 [2020-07-19 21:47:36,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:47:36,099 INFO L225 Difference]: With dead ends: 191 [2020-07-19 21:47:36,100 INFO L226 Difference]: Without dead ends: 189 [2020-07-19 21:47:36,100 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=367, Invalid=625, Unknown=0, NotChecked=0, Total=992 [2020-07-19 21:47:36,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2020-07-19 21:47:36,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 188. [2020-07-19 21:47:36,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188 states. [2020-07-19 21:47:36,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 188 transitions. [2020-07-19 21:47:36,109 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 188 transitions. Word has length 178 [2020-07-19 21:47:36,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:47:36,109 INFO L479 AbstractCegarLoop]: Abstraction has 188 states and 188 transitions. [2020-07-19 21:47:36,110 INFO L480 AbstractCegarLoop]: Interpolant automaton has 31 states. [2020-07-19 21:47:36,110 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 188 transitions. [2020-07-19 21:47:36,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-07-19 21:47:36,111 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:47:36,111 INFO L422 BasicCegarLoop]: trace histogram [26, 26, 26, 25, 25, 25, 25, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:47:36,326 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,25 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:47:36,327 INFO L427 AbstractCegarLoop]: === Iteration 26 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:47:36,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:47:36,328 INFO L82 PathProgramCache]: Analyzing trace with hash 860266376, now seen corresponding path program 25 times [2020-07-19 21:47:36,328 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:47:36,328 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20631526] [2020-07-19 21:47:36,329 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:47:36,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:36,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:36,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:36,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:36,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:36,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:36,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:36,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:36,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:36,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:36,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:36,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:36,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:36,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:36,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:36,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:36,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:36,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:36,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:36,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:36,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:36,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:36,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:36,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:36,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:36,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:36,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:36,864 INFO L134 CoverageAnalysis]: Checked inductivity of 2200 backedges. 50 proven. 950 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2020-07-19 21:47:36,864 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20631526] [2020-07-19 21:47:36,865 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1079313736] [2020-07-19 21:47:36,865 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:47:36,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:36,932 INFO L263 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 29 conjunts are in the unsatisfiable core [2020-07-19 21:47:36,937 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:47:36,955 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:47:37,019 INFO L134 CoverageAnalysis]: Checked inductivity of 2200 backedges. 50 proven. 950 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2020-07-19 21:47:37,020 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:47:37,021 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 30] total 32 [2020-07-19 21:47:37,021 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455727233] [2020-07-19 21:47:37,021 INFO L459 AbstractCegarLoop]: Interpolant automaton has 32 states [2020-07-19 21:47:37,022 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:47:37,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2020-07-19 21:47:37,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=388, Invalid=604, Unknown=0, NotChecked=0, Total=992 [2020-07-19 21:47:37,023 INFO L87 Difference]: Start difference. First operand 188 states and 188 transitions. Second operand 32 states. [2020-07-19 21:47:37,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:47:37,366 INFO L93 Difference]: Finished difference Result 198 states and 198 transitions. [2020-07-19 21:47:37,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-07-19 21:47:37,367 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 185 [2020-07-19 21:47:37,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:47:37,369 INFO L225 Difference]: With dead ends: 198 [2020-07-19 21:47:37,369 INFO L226 Difference]: Without dead ends: 196 [2020-07-19 21:47:37,370 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=394, Invalid=662, Unknown=0, NotChecked=0, Total=1056 [2020-07-19 21:47:37,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2020-07-19 21:47:37,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 195. [2020-07-19 21:47:37,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2020-07-19 21:47:37,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 195 transitions. [2020-07-19 21:47:37,379 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 195 transitions. Word has length 185 [2020-07-19 21:47:37,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:47:37,380 INFO L479 AbstractCegarLoop]: Abstraction has 195 states and 195 transitions. [2020-07-19 21:47:37,380 INFO L480 AbstractCegarLoop]: Interpolant automaton has 32 states. [2020-07-19 21:47:37,380 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 195 transitions. [2020-07-19 21:47:37,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2020-07-19 21:47:37,381 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:47:37,382 INFO L422 BasicCegarLoop]: trace histogram [27, 27, 27, 26, 26, 26, 26, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:47:37,595 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2020-07-19 21:47:37,596 INFO L427 AbstractCegarLoop]: === Iteration 27 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:47:37,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:47:37,597 INFO L82 PathProgramCache]: Analyzing trace with hash 505055957, now seen corresponding path program 26 times [2020-07-19 21:47:37,597 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:47:37,598 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435369917] [2020-07-19 21:47:37,598 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:47:37,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:38,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:38,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:38,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:38,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:38,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:38,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:38,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:38,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:38,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:38,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:38,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:38,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:38,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:38,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:38,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:38,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:38,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:38,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:38,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:38,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:38,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:38,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:38,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:38,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:38,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:38,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:38,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:38,188 INFO L134 CoverageAnalysis]: Checked inductivity of 2379 backedges. 52 proven. 1027 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2020-07-19 21:47:38,189 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435369917] [2020-07-19 21:47:38,189 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2104428257] [2020-07-19 21:47:38,189 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:47:38,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:38,254 INFO L263 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 30 conjunts are in the unsatisfiable core [2020-07-19 21:47:38,258 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:47:38,281 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:47:38,351 INFO L134 CoverageAnalysis]: Checked inductivity of 2379 backedges. 52 proven. 1027 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2020-07-19 21:47:38,351 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:47:38,351 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 31] total 33 [2020-07-19 21:47:38,351 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265547933] [2020-07-19 21:47:38,352 INFO L459 AbstractCegarLoop]: Interpolant automaton has 33 states [2020-07-19 21:47:38,352 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:47:38,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2020-07-19 21:47:38,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=416, Invalid=640, Unknown=0, NotChecked=0, Total=1056 [2020-07-19 21:47:38,353 INFO L87 Difference]: Start difference. First operand 195 states and 195 transitions. Second operand 33 states. [2020-07-19 21:47:38,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:47:38,724 INFO L93 Difference]: Finished difference Result 205 states and 205 transitions. [2020-07-19 21:47:38,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-07-19 21:47:38,725 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 192 [2020-07-19 21:47:38,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:47:38,727 INFO L225 Difference]: With dead ends: 205 [2020-07-19 21:47:38,727 INFO L226 Difference]: Without dead ends: 203 [2020-07-19 21:47:38,729 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 245 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=422, Invalid=700, Unknown=0, NotChecked=0, Total=1122 [2020-07-19 21:47:38,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2020-07-19 21:47:38,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 202. [2020-07-19 21:47:38,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-07-19 21:47:38,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 202 transitions. [2020-07-19 21:47:38,741 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 202 transitions. Word has length 192 [2020-07-19 21:47:38,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:47:38,741 INFO L479 AbstractCegarLoop]: Abstraction has 202 states and 202 transitions. [2020-07-19 21:47:38,742 INFO L480 AbstractCegarLoop]: Interpolant automaton has 33 states. [2020-07-19 21:47:38,742 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 202 transitions. [2020-07-19 21:47:38,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-07-19 21:47:38,743 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:47:38,744 INFO L422 BasicCegarLoop]: trace histogram [28, 28, 28, 27, 27, 27, 27, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:47:38,956 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2020-07-19 21:47:38,957 INFO L427 AbstractCegarLoop]: === Iteration 28 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:47:38,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:47:38,958 INFO L82 PathProgramCache]: Analyzing trace with hash -489505048, now seen corresponding path program 27 times [2020-07-19 21:47:38,958 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:47:38,959 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120879464] [2020-07-19 21:47:38,959 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:47:38,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:39,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:39,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:39,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:39,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:39,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:39,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:39,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:39,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:39,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:39,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:39,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:39,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:39,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:39,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:39,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:39,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:39,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:39,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:39,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:39,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:39,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:39,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:39,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:39,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:39,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:39,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:39,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:39,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:39,540 INFO L134 CoverageAnalysis]: Checked inductivity of 2565 backedges. 54 proven. 1107 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2020-07-19 21:47:39,540 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120879464] [2020-07-19 21:47:39,540 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1606631660] [2020-07-19 21:47:39,541 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:47:39,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:39,614 INFO L263 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 31 conjunts are in the unsatisfiable core [2020-07-19 21:47:39,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:47:39,639 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:47:39,708 INFO L134 CoverageAnalysis]: Checked inductivity of 2565 backedges. 54 proven. 1107 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2020-07-19 21:47:39,708 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:47:39,708 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32] total 34 [2020-07-19 21:47:39,709 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720312621] [2020-07-19 21:47:39,709 INFO L459 AbstractCegarLoop]: Interpolant automaton has 34 states [2020-07-19 21:47:39,709 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:47:39,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2020-07-19 21:47:39,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=445, Invalid=677, Unknown=0, NotChecked=0, Total=1122 [2020-07-19 21:47:39,711 INFO L87 Difference]: Start difference. First operand 202 states and 202 transitions. Second operand 34 states. [2020-07-19 21:47:40,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:47:40,026 INFO L93 Difference]: Finished difference Result 212 states and 212 transitions. [2020-07-19 21:47:40,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-07-19 21:47:40,027 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 199 [2020-07-19 21:47:40,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:47:40,029 INFO L225 Difference]: With dead ends: 212 [2020-07-19 21:47:40,029 INFO L226 Difference]: Without dead ends: 210 [2020-07-19 21:47:40,030 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=451, Invalid=739, Unknown=0, NotChecked=0, Total=1190 [2020-07-19 21:47:40,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2020-07-19 21:47:40,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 209. [2020-07-19 21:47:40,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2020-07-19 21:47:40,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 209 transitions. [2020-07-19 21:47:40,038 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 209 transitions. Word has length 199 [2020-07-19 21:47:40,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:47:40,039 INFO L479 AbstractCegarLoop]: Abstraction has 209 states and 209 transitions. [2020-07-19 21:47:40,039 INFO L480 AbstractCegarLoop]: Interpolant automaton has 34 states. [2020-07-19 21:47:40,039 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 209 transitions. [2020-07-19 21:47:40,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2020-07-19 21:47:40,040 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:47:40,040 INFO L422 BasicCegarLoop]: trace histogram [29, 29, 29, 28, 28, 28, 28, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:47:40,253 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2020-07-19 21:47:40,254 INFO L427 AbstractCegarLoop]: === Iteration 29 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:47:40,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:47:40,255 INFO L82 PathProgramCache]: Analyzing trace with hash 1374576501, now seen corresponding path program 28 times [2020-07-19 21:47:40,255 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:47:40,255 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344262625] [2020-07-19 21:47:40,256 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:47:40,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:40,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:40,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:40,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:40,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:40,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:40,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:40,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:40,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:40,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:40,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:40,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:40,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:40,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:40,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:40,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:40,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:40,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:40,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:40,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:40,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:40,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:40,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:40,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:40,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:40,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:40,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:40,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:40,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:40,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:40,874 INFO L134 CoverageAnalysis]: Checked inductivity of 2758 backedges. 56 proven. 1190 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2020-07-19 21:47:40,874 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344262625] [2020-07-19 21:47:40,874 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [928259552] [2020-07-19 21:47:40,875 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:47:40,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:40,945 INFO L263 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 32 conjunts are in the unsatisfiable core [2020-07-19 21:47:40,949 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:47:40,965 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:47:41,025 INFO L134 CoverageAnalysis]: Checked inductivity of 2758 backedges. 56 proven. 1190 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2020-07-19 21:47:41,026 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:47:41,026 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33] total 35 [2020-07-19 21:47:41,026 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55743184] [2020-07-19 21:47:41,027 INFO L459 AbstractCegarLoop]: Interpolant automaton has 35 states [2020-07-19 21:47:41,027 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:47:41,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2020-07-19 21:47:41,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=475, Invalid=715, Unknown=0, NotChecked=0, Total=1190 [2020-07-19 21:47:41,028 INFO L87 Difference]: Start difference. First operand 209 states and 209 transitions. Second operand 35 states. [2020-07-19 21:47:41,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:47:41,392 INFO L93 Difference]: Finished difference Result 219 states and 219 transitions. [2020-07-19 21:47:41,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-07-19 21:47:41,393 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 206 [2020-07-19 21:47:41,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:47:41,395 INFO L225 Difference]: With dead ends: 219 [2020-07-19 21:47:41,395 INFO L226 Difference]: Without dead ends: 217 [2020-07-19 21:47:41,398 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 263 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=481, Invalid=779, Unknown=0, NotChecked=0, Total=1260 [2020-07-19 21:47:41,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2020-07-19 21:47:41,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 216. [2020-07-19 21:47:41,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 216 states. [2020-07-19 21:47:41,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 216 transitions. [2020-07-19 21:47:41,413 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 216 transitions. Word has length 206 [2020-07-19 21:47:41,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:47:41,413 INFO L479 AbstractCegarLoop]: Abstraction has 216 states and 216 transitions. [2020-07-19 21:47:41,413 INFO L480 AbstractCegarLoop]: Interpolant automaton has 35 states. [2020-07-19 21:47:41,414 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 216 transitions. [2020-07-19 21:47:41,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2020-07-19 21:47:41,415 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:47:41,415 INFO L422 BasicCegarLoop]: trace histogram [30, 30, 30, 29, 29, 29, 29, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:47:41,628 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2020-07-19 21:47:41,629 INFO L427 AbstractCegarLoop]: === Iteration 30 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:47:41,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:47:41,629 INFO L82 PathProgramCache]: Analyzing trace with hash -1316719032, now seen corresponding path program 29 times [2020-07-19 21:47:41,630 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:47:41,630 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166280726] [2020-07-19 21:47:41,630 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:47:41,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:42,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:42,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:42,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:42,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:42,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:42,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:42,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:42,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:42,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:42,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:42,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:42,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:42,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:42,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:42,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:42,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:42,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:42,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:42,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:42,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:42,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:42,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:42,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:42,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:42,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:42,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:42,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:42,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:42,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:42,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:42,322 INFO L134 CoverageAnalysis]: Checked inductivity of 2958 backedges. 58 proven. 1276 refuted. 0 times theorem prover too weak. 1624 trivial. 0 not checked. [2020-07-19 21:47:42,322 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166280726] [2020-07-19 21:47:42,322 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [745875787] [2020-07-19 21:47:42,322 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:47:42,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:42,385 INFO L263 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 33 conjunts are in the unsatisfiable core [2020-07-19 21:47:42,390 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:47:42,409 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:47:42,501 INFO L134 CoverageAnalysis]: Checked inductivity of 2958 backedges. 58 proven. 1276 refuted. 0 times theorem prover too weak. 1624 trivial. 0 not checked. [2020-07-19 21:47:42,501 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:47:42,501 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 34] total 36 [2020-07-19 21:47:42,502 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429472788] [2020-07-19 21:47:42,502 INFO L459 AbstractCegarLoop]: Interpolant automaton has 36 states [2020-07-19 21:47:42,502 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:47:42,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2020-07-19 21:47:42,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=506, Invalid=754, Unknown=0, NotChecked=0, Total=1260 [2020-07-19 21:47:42,503 INFO L87 Difference]: Start difference. First operand 216 states and 216 transitions. Second operand 36 states. [2020-07-19 21:47:42,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:47:42,982 INFO L93 Difference]: Finished difference Result 226 states and 226 transitions. [2020-07-19 21:47:42,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-07-19 21:47:42,983 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 213 [2020-07-19 21:47:42,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:47:42,985 INFO L225 Difference]: With dead ends: 226 [2020-07-19 21:47:42,986 INFO L226 Difference]: Without dead ends: 224 [2020-07-19 21:47:42,987 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 272 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=512, Invalid=820, Unknown=0, NotChecked=0, Total=1332 [2020-07-19 21:47:42,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2020-07-19 21:47:42,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 223. [2020-07-19 21:47:42,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 223 states. [2020-07-19 21:47:42,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 223 transitions. [2020-07-19 21:47:42,998 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 223 transitions. Word has length 213 [2020-07-19 21:47:42,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:47:42,999 INFO L479 AbstractCegarLoop]: Abstraction has 223 states and 223 transitions. [2020-07-19 21:47:42,999 INFO L480 AbstractCegarLoop]: Interpolant automaton has 36 states. [2020-07-19 21:47:42,999 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 223 transitions. [2020-07-19 21:47:43,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2020-07-19 21:47:43,002 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:47:43,002 INFO L422 BasicCegarLoop]: trace histogram [31, 31, 31, 30, 30, 30, 30, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:47:43,217 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,30 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:47:43,218 INFO L427 AbstractCegarLoop]: === Iteration 31 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:47:43,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:47:43,218 INFO L82 PathProgramCache]: Analyzing trace with hash -1247699947, now seen corresponding path program 30 times [2020-07-19 21:47:43,219 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:47:43,219 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2711679] [2020-07-19 21:47:43,219 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:47:43,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:43,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:43,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:43,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:43,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:43,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:43,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:43,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:43,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:43,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:43,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:43,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:43,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:43,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:43,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:43,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:43,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:43,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:43,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:43,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:43,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:43,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:43,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:43,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:43,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:43,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:43,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:43,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:43,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:43,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:43,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:43,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:43,931 INFO L134 CoverageAnalysis]: Checked inductivity of 3165 backedges. 60 proven. 1365 refuted. 0 times theorem prover too weak. 1740 trivial. 0 not checked. [2020-07-19 21:47:43,931 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2711679] [2020-07-19 21:47:43,931 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1456981040] [2020-07-19 21:47:43,931 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:47:44,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:44,003 INFO L263 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 34 conjunts are in the unsatisfiable core [2020-07-19 21:47:44,007 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:47:44,026 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:47:44,101 INFO L134 CoverageAnalysis]: Checked inductivity of 3165 backedges. 60 proven. 1365 refuted. 0 times theorem prover too weak. 1740 trivial. 0 not checked. [2020-07-19 21:47:44,102 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:47:44,102 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 35] total 37 [2020-07-19 21:47:44,102 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778839628] [2020-07-19 21:47:44,103 INFO L459 AbstractCegarLoop]: Interpolant automaton has 37 states [2020-07-19 21:47:44,103 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:47:44,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2020-07-19 21:47:44,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=538, Invalid=794, Unknown=0, NotChecked=0, Total=1332 [2020-07-19 21:47:44,104 INFO L87 Difference]: Start difference. First operand 223 states and 223 transitions. Second operand 37 states. [2020-07-19 21:47:44,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:47:44,462 INFO L93 Difference]: Finished difference Result 233 states and 233 transitions. [2020-07-19 21:47:44,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-07-19 21:47:44,463 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 220 [2020-07-19 21:47:44,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:47:44,465 INFO L225 Difference]: With dead ends: 233 [2020-07-19 21:47:44,465 INFO L226 Difference]: Without dead ends: 231 [2020-07-19 21:47:44,466 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 317 GetRequests, 281 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=544, Invalid=862, Unknown=0, NotChecked=0, Total=1406 [2020-07-19 21:47:44,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2020-07-19 21:47:44,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 230. [2020-07-19 21:47:44,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-07-19 21:47:44,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 230 transitions. [2020-07-19 21:47:44,476 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 230 transitions. Word has length 220 [2020-07-19 21:47:44,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:47:44,477 INFO L479 AbstractCegarLoop]: Abstraction has 230 states and 230 transitions. [2020-07-19 21:47:44,477 INFO L480 AbstractCegarLoop]: Interpolant automaton has 37 states. [2020-07-19 21:47:44,477 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 230 transitions. [2020-07-19 21:47:44,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2020-07-19 21:47:44,479 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:47:44,479 INFO L422 BasicCegarLoop]: trace histogram [32, 32, 32, 31, 31, 31, 31, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:47:44,694 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,31 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:47:44,695 INFO L427 AbstractCegarLoop]: === Iteration 32 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:47:44,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:47:44,696 INFO L82 PathProgramCache]: Analyzing trace with hash 28427688, now seen corresponding path program 31 times [2020-07-19 21:47:44,696 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:47:44,696 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374620718] [2020-07-19 21:47:44,696 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:47:44,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:45,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:45,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:45,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:45,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:45,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:45,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:45,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:45,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:45,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:45,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:45,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:45,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:45,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:45,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:45,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:45,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:45,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:45,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:45,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:45,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:45,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:45,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:45,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:45,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:45,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:45,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:45,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:45,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:45,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:45,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:45,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:45,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:45,485 INFO L134 CoverageAnalysis]: Checked inductivity of 3379 backedges. 62 proven. 1457 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2020-07-19 21:47:45,486 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374620718] [2020-07-19 21:47:45,486 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [443093900] [2020-07-19 21:47:45,486 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:47:45,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:45,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 35 conjunts are in the unsatisfiable core [2020-07-19 21:47:45,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:47:45,580 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:47:45,666 INFO L134 CoverageAnalysis]: Checked inductivity of 3379 backedges. 62 proven. 1457 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2020-07-19 21:47:45,667 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:47:45,667 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 36] total 38 [2020-07-19 21:47:45,667 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210623933] [2020-07-19 21:47:45,668 INFO L459 AbstractCegarLoop]: Interpolant automaton has 38 states [2020-07-19 21:47:45,668 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:47:45,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2020-07-19 21:47:45,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=571, Invalid=835, Unknown=0, NotChecked=0, Total=1406 [2020-07-19 21:47:45,669 INFO L87 Difference]: Start difference. First operand 230 states and 230 transitions. Second operand 38 states. [2020-07-19 21:47:46,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:47:46,119 INFO L93 Difference]: Finished difference Result 240 states and 240 transitions. [2020-07-19 21:47:46,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-07-19 21:47:46,119 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 227 [2020-07-19 21:47:46,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:47:46,122 INFO L225 Difference]: With dead ends: 240 [2020-07-19 21:47:46,122 INFO L226 Difference]: Without dead ends: 238 [2020-07-19 21:47:46,124 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 327 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=577, Invalid=905, Unknown=0, NotChecked=0, Total=1482 [2020-07-19 21:47:46,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2020-07-19 21:47:46,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 237. [2020-07-19 21:47:46,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 237 states. [2020-07-19 21:47:46,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 237 transitions. [2020-07-19 21:47:46,137 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 237 transitions. Word has length 227 [2020-07-19 21:47:46,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:47:46,138 INFO L479 AbstractCegarLoop]: Abstraction has 237 states and 237 transitions. [2020-07-19 21:47:46,138 INFO L480 AbstractCegarLoop]: Interpolant automaton has 38 states. [2020-07-19 21:47:46,138 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 237 transitions. [2020-07-19 21:47:46,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2020-07-19 21:47:46,140 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:47:46,140 INFO L422 BasicCegarLoop]: trace histogram [33, 33, 33, 32, 32, 32, 32, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:47:46,354 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,32 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:47:46,355 INFO L427 AbstractCegarLoop]: === Iteration 33 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:47:46,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:47:46,356 INFO L82 PathProgramCache]: Analyzing trace with hash -1172422475, now seen corresponding path program 32 times [2020-07-19 21:47:46,356 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:47:46,356 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910724942] [2020-07-19 21:47:46,357 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:47:46,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:47,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:47,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:47,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:47,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:47,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:47,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:47,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:47,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:47,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:47,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:47,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:47,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:47,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:47,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:47,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:47,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:47,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:47,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:47,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:47,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:47,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:47,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:47,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:47,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:47,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:47,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:47,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:47,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:47,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:47,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:47,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:47,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:47,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:47,112 INFO L134 CoverageAnalysis]: Checked inductivity of 3600 backedges. 64 proven. 1552 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2020-07-19 21:47:47,112 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910724942] [2020-07-19 21:47:47,112 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [68687490] [2020-07-19 21:47:47,112 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:47:47,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:47,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 406 conjuncts, 36 conjunts are in the unsatisfiable core [2020-07-19 21:47:47,184 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:47:47,202 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:47:47,285 INFO L134 CoverageAnalysis]: Checked inductivity of 3600 backedges. 64 proven. 1552 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2020-07-19 21:47:47,285 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:47:47,286 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 37] total 39 [2020-07-19 21:47:47,287 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478627144] [2020-07-19 21:47:47,287 INFO L459 AbstractCegarLoop]: Interpolant automaton has 39 states [2020-07-19 21:47:47,288 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:47:47,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2020-07-19 21:47:47,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=605, Invalid=877, Unknown=0, NotChecked=0, Total=1482 [2020-07-19 21:47:47,289 INFO L87 Difference]: Start difference. First operand 237 states and 237 transitions. Second operand 39 states. [2020-07-19 21:47:47,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:47:47,821 INFO L93 Difference]: Finished difference Result 247 states and 247 transitions. [2020-07-19 21:47:47,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-07-19 21:47:47,822 INFO L78 Accepts]: Start accepts. Automaton has 39 states. Word has length 234 [2020-07-19 21:47:47,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:47:47,825 INFO L225 Difference]: With dead ends: 247 [2020-07-19 21:47:47,825 INFO L226 Difference]: Without dead ends: 245 [2020-07-19 21:47:47,829 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 337 GetRequests, 299 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=611, Invalid=949, Unknown=0, NotChecked=0, Total=1560 [2020-07-19 21:47:47,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2020-07-19 21:47:47,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 244. [2020-07-19 21:47:47,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2020-07-19 21:47:47,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 244 transitions. [2020-07-19 21:47:47,847 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 244 transitions. Word has length 234 [2020-07-19 21:47:47,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:47:47,848 INFO L479 AbstractCegarLoop]: Abstraction has 244 states and 244 transitions. [2020-07-19 21:47:47,848 INFO L480 AbstractCegarLoop]: Interpolant automaton has 39 states. [2020-07-19 21:47:47,848 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 244 transitions. [2020-07-19 21:47:47,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-07-19 21:47:47,850 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:47:47,850 INFO L422 BasicCegarLoop]: trace histogram [34, 34, 34, 33, 33, 33, 33, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:47:48,065 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2020-07-19 21:47:48,066 INFO L427 AbstractCegarLoop]: === Iteration 34 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:47:48,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:47:48,066 INFO L82 PathProgramCache]: Analyzing trace with hash 1731243272, now seen corresponding path program 33 times [2020-07-19 21:47:48,067 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:47:48,067 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589385197] [2020-07-19 21:47:48,067 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:47:48,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:48,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:48,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:48,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:48,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:48,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:48,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:48,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:48,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:48,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:48,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:48,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:48,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:48,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:48,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:48,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:48,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:48,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:48,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:48,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:48,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:48,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:48,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:48,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:48,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:48,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:48,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:48,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:48,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:48,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:48,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:48,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:48,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:48,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:48,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:48,960 INFO L134 CoverageAnalysis]: Checked inductivity of 3828 backedges. 66 proven. 1650 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2020-07-19 21:47:48,960 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589385197] [2020-07-19 21:47:48,960 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [865973901] [2020-07-19 21:47:48,960 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:47:49,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:49,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 37 conjunts are in the unsatisfiable core [2020-07-19 21:47:49,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:47:49,051 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:47:49,156 INFO L134 CoverageAnalysis]: Checked inductivity of 3828 backedges. 66 proven. 1650 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2020-07-19 21:47:49,156 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:47:49,157 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 38] total 40 [2020-07-19 21:47:49,157 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441799659] [2020-07-19 21:47:49,158 INFO L459 AbstractCegarLoop]: Interpolant automaton has 40 states [2020-07-19 21:47:49,158 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:47:49,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2020-07-19 21:47:49,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=640, Invalid=920, Unknown=0, NotChecked=0, Total=1560 [2020-07-19 21:47:49,159 INFO L87 Difference]: Start difference. First operand 244 states and 244 transitions. Second operand 40 states. [2020-07-19 21:47:49,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:47:49,597 INFO L93 Difference]: Finished difference Result 254 states and 254 transitions. [2020-07-19 21:47:49,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-07-19 21:47:49,597 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 241 [2020-07-19 21:47:49,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:47:49,599 INFO L225 Difference]: With dead ends: 254 [2020-07-19 21:47:49,600 INFO L226 Difference]: Without dead ends: 252 [2020-07-19 21:47:49,601 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 308 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=646, Invalid=994, Unknown=0, NotChecked=0, Total=1640 [2020-07-19 21:47:49,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2020-07-19 21:47:49,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 251. [2020-07-19 21:47:49,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 251 states. [2020-07-19 21:47:49,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 251 transitions. [2020-07-19 21:47:49,610 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 251 transitions. Word has length 241 [2020-07-19 21:47:49,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:47:49,611 INFO L479 AbstractCegarLoop]: Abstraction has 251 states and 251 transitions. [2020-07-19 21:47:49,611 INFO L480 AbstractCegarLoop]: Interpolant automaton has 40 states. [2020-07-19 21:47:49,611 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 251 transitions. [2020-07-19 21:47:49,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2020-07-19 21:47:49,613 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:47:49,613 INFO L422 BasicCegarLoop]: trace histogram [35, 35, 35, 34, 34, 34, 34, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:47:49,826 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,34 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:47:49,827 INFO L427 AbstractCegarLoop]: === Iteration 35 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:47:49,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:47:49,828 INFO L82 PathProgramCache]: Analyzing trace with hash -288469675, now seen corresponding path program 34 times [2020-07-19 21:47:49,828 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:47:49,828 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163800325] [2020-07-19 21:47:49,829 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:47:49,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:50,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:50,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:50,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:50,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:50,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:50,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:50,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:50,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:50,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:50,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:50,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:50,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:50,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:50,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:50,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:50,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:50,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:50,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:50,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:50,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:50,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:51,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:51,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:51,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:51,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:51,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:51,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:51,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:51,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:51,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:51,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:51,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:51,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:51,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:51,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:51,106 INFO L134 CoverageAnalysis]: Checked inductivity of 4063 backedges. 68 proven. 1751 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2020-07-19 21:47:51,107 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163800325] [2020-07-19 21:47:51,107 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [613662616] [2020-07-19 21:47:51,108 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 35 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:47:51,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:51,215 INFO L263 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 38 conjunts are in the unsatisfiable core [2020-07-19 21:47:51,218 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:47:51,251 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:47:51,436 INFO L134 CoverageAnalysis]: Checked inductivity of 4063 backedges. 68 proven. 1751 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2020-07-19 21:47:51,437 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:47:51,437 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 39] total 41 [2020-07-19 21:47:51,437 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584047933] [2020-07-19 21:47:51,440 INFO L459 AbstractCegarLoop]: Interpolant automaton has 41 states [2020-07-19 21:47:51,440 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:47:51,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2020-07-19 21:47:51,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=676, Invalid=964, Unknown=0, NotChecked=0, Total=1640 [2020-07-19 21:47:51,442 INFO L87 Difference]: Start difference. First operand 251 states and 251 transitions. Second operand 41 states. [2020-07-19 21:47:52,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:47:52,013 INFO L93 Difference]: Finished difference Result 261 states and 261 transitions. [2020-07-19 21:47:52,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2020-07-19 21:47:52,014 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 248 [2020-07-19 21:47:52,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:47:52,016 INFO L225 Difference]: With dead ends: 261 [2020-07-19 21:47:52,016 INFO L226 Difference]: Without dead ends: 259 [2020-07-19 21:47:52,017 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 357 GetRequests, 317 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=682, Invalid=1040, Unknown=0, NotChecked=0, Total=1722 [2020-07-19 21:47:52,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2020-07-19 21:47:52,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 258. [2020-07-19 21:47:52,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 258 states. [2020-07-19 21:47:52,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 258 transitions. [2020-07-19 21:47:52,028 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 258 transitions. Word has length 248 [2020-07-19 21:47:52,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:47:52,028 INFO L479 AbstractCegarLoop]: Abstraction has 258 states and 258 transitions. [2020-07-19 21:47:52,029 INFO L480 AbstractCegarLoop]: Interpolant automaton has 41 states. [2020-07-19 21:47:52,029 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 258 transitions. [2020-07-19 21:47:52,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2020-07-19 21:47:52,030 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:47:52,031 INFO L422 BasicCegarLoop]: trace histogram [36, 36, 36, 35, 35, 35, 35, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:47:52,233 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2020-07-19 21:47:52,234 INFO L427 AbstractCegarLoop]: === Iteration 36 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:47:52,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:47:52,235 INFO L82 PathProgramCache]: Analyzing trace with hash 123153512, now seen corresponding path program 35 times [2020-07-19 21:47:52,235 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:47:52,235 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129189571] [2020-07-19 21:47:52,236 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:47:52,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:53,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:53,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:53,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:53,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:53,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:53,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:53,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:53,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:53,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:53,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:53,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:53,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:53,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:53,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:53,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:53,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:53,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:53,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:53,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:53,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:53,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:53,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:53,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:53,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:53,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:53,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:53,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:53,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:53,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:53,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:53,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:53,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:53,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:53,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:53,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:53,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:53,164 INFO L134 CoverageAnalysis]: Checked inductivity of 4305 backedges. 70 proven. 1855 refuted. 0 times theorem prover too weak. 2380 trivial. 0 not checked. [2020-07-19 21:47:53,165 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129189571] [2020-07-19 21:47:53,165 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2119686854] [2020-07-19 21:47:53,165 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:47:53,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:53,244 INFO L263 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 39 conjunts are in the unsatisfiable core [2020-07-19 21:47:53,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:47:53,287 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:47:53,376 INFO L134 CoverageAnalysis]: Checked inductivity of 4305 backedges. 70 proven. 1855 refuted. 0 times theorem prover too weak. 2380 trivial. 0 not checked. [2020-07-19 21:47:53,379 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:47:53,379 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 40] total 42 [2020-07-19 21:47:53,379 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749413783] [2020-07-19 21:47:53,382 INFO L459 AbstractCegarLoop]: Interpolant automaton has 42 states [2020-07-19 21:47:53,382 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:47:53,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2020-07-19 21:47:53,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=713, Invalid=1009, Unknown=0, NotChecked=0, Total=1722 [2020-07-19 21:47:53,383 INFO L87 Difference]: Start difference. First operand 258 states and 258 transitions. Second operand 42 states. [2020-07-19 21:47:53,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:47:53,894 INFO L93 Difference]: Finished difference Result 268 states and 268 transitions. [2020-07-19 21:47:53,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2020-07-19 21:47:53,900 INFO L78 Accepts]: Start accepts. Automaton has 42 states. Word has length 255 [2020-07-19 21:47:53,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:47:53,902 INFO L225 Difference]: With dead ends: 268 [2020-07-19 21:47:53,902 INFO L226 Difference]: Without dead ends: 266 [2020-07-19 21:47:53,903 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 367 GetRequests, 326 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=719, Invalid=1087, Unknown=0, NotChecked=0, Total=1806 [2020-07-19 21:47:53,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-07-19 21:47:53,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 265. [2020-07-19 21:47:53,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 265 states. [2020-07-19 21:47:53,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 265 transitions. [2020-07-19 21:47:53,912 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 265 transitions. Word has length 255 [2020-07-19 21:47:53,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:47:53,913 INFO L479 AbstractCegarLoop]: Abstraction has 265 states and 265 transitions. [2020-07-19 21:47:53,913 INFO L480 AbstractCegarLoop]: Interpolant automaton has 42 states. [2020-07-19 21:47:53,913 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 265 transitions. [2020-07-19 21:47:53,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2020-07-19 21:47:53,915 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:47:53,915 INFO L422 BasicCegarLoop]: trace histogram [37, 37, 37, 36, 36, 36, 36, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:47:54,128 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,36 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:47:54,129 INFO L427 AbstractCegarLoop]: === Iteration 37 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:47:54,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:47:54,129 INFO L82 PathProgramCache]: Analyzing trace with hash -1583627787, now seen corresponding path program 36 times [2020-07-19 21:47:54,129 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:47:54,130 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159792285] [2020-07-19 21:47:54,130 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:47:54,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:54,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:54,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:54,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:54,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:54,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:54,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:55,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:55,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:55,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:55,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:55,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:55,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:55,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:55,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:55,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:55,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:55,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:55,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:55,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:55,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:55,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:55,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:55,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:55,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:55,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:55,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:55,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:55,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:55,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:55,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:55,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:55,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:55,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:55,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:55,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:55,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:55,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:55,106 INFO L134 CoverageAnalysis]: Checked inductivity of 4554 backedges. 72 proven. 1962 refuted. 0 times theorem prover too weak. 2520 trivial. 0 not checked. [2020-07-19 21:47:55,106 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159792285] [2020-07-19 21:47:55,106 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [293349615] [2020-07-19 21:47:55,106 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 37 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:47:55,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:55,184 INFO L263 TraceCheckSpWp]: Trace formula consists of 454 conjuncts, 40 conjunts are in the unsatisfiable core [2020-07-19 21:47:55,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:47:55,209 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:47:55,314 INFO L134 CoverageAnalysis]: Checked inductivity of 4554 backedges. 72 proven. 1962 refuted. 0 times theorem prover too weak. 2520 trivial. 0 not checked. [2020-07-19 21:47:55,314 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:47:55,315 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 41] total 43 [2020-07-19 21:47:55,315 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455473733] [2020-07-19 21:47:55,316 INFO L459 AbstractCegarLoop]: Interpolant automaton has 43 states [2020-07-19 21:47:55,316 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:47:55,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2020-07-19 21:47:55,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=751, Invalid=1055, Unknown=0, NotChecked=0, Total=1806 [2020-07-19 21:47:55,318 INFO L87 Difference]: Start difference. First operand 265 states and 265 transitions. Second operand 43 states. [2020-07-19 21:47:55,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:47:55,755 INFO L93 Difference]: Finished difference Result 275 states and 275 transitions. [2020-07-19 21:47:55,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2020-07-19 21:47:55,756 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 262 [2020-07-19 21:47:55,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:47:55,758 INFO L225 Difference]: With dead ends: 275 [2020-07-19 21:47:55,758 INFO L226 Difference]: Without dead ends: 273 [2020-07-19 21:47:55,759 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 377 GetRequests, 335 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=757, Invalid=1135, Unknown=0, NotChecked=0, Total=1892 [2020-07-19 21:47:55,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2020-07-19 21:47:55,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 272. [2020-07-19 21:47:55,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 272 states. [2020-07-19 21:47:55,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 272 transitions. [2020-07-19 21:47:55,770 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 272 transitions. Word has length 262 [2020-07-19 21:47:55,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:47:55,771 INFO L479 AbstractCegarLoop]: Abstraction has 272 states and 272 transitions. [2020-07-19 21:47:55,771 INFO L480 AbstractCegarLoop]: Interpolant automaton has 43 states. [2020-07-19 21:47:55,771 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 272 transitions. [2020-07-19 21:47:55,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2020-07-19 21:47:55,772 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:47:55,773 INFO L422 BasicCegarLoop]: trace histogram [38, 38, 38, 37, 37, 37, 37, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:47:55,986 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2020-07-19 21:47:55,986 INFO L427 AbstractCegarLoop]: === Iteration 38 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:47:55,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:47:55,987 INFO L82 PathProgramCache]: Analyzing trace with hash -117750840, now seen corresponding path program 37 times [2020-07-19 21:47:55,987 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:47:55,988 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455120978] [2020-07-19 21:47:55,988 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:47:56,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:56,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:56,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:56,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:56,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:56,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:56,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:56,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:56,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:56,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:56,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:56,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:56,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:56,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:56,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:56,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:56,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:56,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:56,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:56,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:56,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:56,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:56,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:56,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:56,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:56,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:56,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:56,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:56,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:56,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:56,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:56,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:56,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:56,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:56,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:56,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:56,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:56,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:56,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:57,046 INFO L134 CoverageAnalysis]: Checked inductivity of 4810 backedges. 74 proven. 2072 refuted. 0 times theorem prover too weak. 2664 trivial. 0 not checked. [2020-07-19 21:47:57,047 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455120978] [2020-07-19 21:47:57,047 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [800056631] [2020-07-19 21:47:57,047 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 38 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:47:57,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:57,144 INFO L263 TraceCheckSpWp]: Trace formula consists of 466 conjuncts, 41 conjunts are in the unsatisfiable core [2020-07-19 21:47:57,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:47:57,167 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:47:57,259 INFO L134 CoverageAnalysis]: Checked inductivity of 4810 backedges. 74 proven. 2072 refuted. 0 times theorem prover too weak. 2664 trivial. 0 not checked. [2020-07-19 21:47:57,259 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:47:57,259 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 42] total 44 [2020-07-19 21:47:57,260 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444415932] [2020-07-19 21:47:57,262 INFO L459 AbstractCegarLoop]: Interpolant automaton has 44 states [2020-07-19 21:47:57,262 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:47:57,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2020-07-19 21:47:57,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=790, Invalid=1102, Unknown=0, NotChecked=0, Total=1892 [2020-07-19 21:47:57,263 INFO L87 Difference]: Start difference. First operand 272 states and 272 transitions. Second operand 44 states. [2020-07-19 21:47:57,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:47:57,695 INFO L93 Difference]: Finished difference Result 282 states and 282 transitions. [2020-07-19 21:47:57,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2020-07-19 21:47:57,696 INFO L78 Accepts]: Start accepts. Automaton has 44 states. Word has length 269 [2020-07-19 21:47:57,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:47:57,698 INFO L225 Difference]: With dead ends: 282 [2020-07-19 21:47:57,699 INFO L226 Difference]: Without dead ends: 280 [2020-07-19 21:47:57,700 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 387 GetRequests, 344 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=796, Invalid=1184, Unknown=0, NotChecked=0, Total=1980 [2020-07-19 21:47:57,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2020-07-19 21:47:57,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 279. [2020-07-19 21:47:57,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 279 states. [2020-07-19 21:47:57,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 279 transitions. [2020-07-19 21:47:57,708 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 279 transitions. Word has length 269 [2020-07-19 21:47:57,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:47:57,709 INFO L479 AbstractCegarLoop]: Abstraction has 279 states and 279 transitions. [2020-07-19 21:47:57,709 INFO L480 AbstractCegarLoop]: Interpolant automaton has 44 states. [2020-07-19 21:47:57,709 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 279 transitions. [2020-07-19 21:47:57,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2020-07-19 21:47:57,711 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:47:57,711 INFO L422 BasicCegarLoop]: trace histogram [39, 39, 39, 38, 38, 38, 38, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:47:57,924 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2020-07-19 21:47:57,925 INFO L427 AbstractCegarLoop]: === Iteration 39 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:47:57,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:47:57,926 INFO L82 PathProgramCache]: Analyzing trace with hash 2129698453, now seen corresponding path program 38 times [2020-07-19 21:47:57,926 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:47:57,927 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445058053] [2020-07-19 21:47:57,927 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:47:57,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:58,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:58,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:58,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:58,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:58,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:58,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:58,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:58,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:58,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:58,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:58,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:58,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:58,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:58,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:58,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:58,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:58,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:58,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:58,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:58,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:58,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:58,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:58,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:58,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:58,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:58,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:58,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:58,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:58,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:58,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:58,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:58,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:58,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:58,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:58,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:58,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:58,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:58,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:58,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:58,975 INFO L134 CoverageAnalysis]: Checked inductivity of 5073 backedges. 76 proven. 2185 refuted. 0 times theorem prover too weak. 2812 trivial. 0 not checked. [2020-07-19 21:47:58,975 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445058053] [2020-07-19 21:47:58,975 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1075450827] [2020-07-19 21:47:58,976 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 39 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 39 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:47:59,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:59,053 INFO L263 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 42 conjunts are in the unsatisfiable core [2020-07-19 21:47:59,060 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:47:59,083 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:47:59,213 INFO L134 CoverageAnalysis]: Checked inductivity of 5073 backedges. 76 proven. 2185 refuted. 0 times theorem prover too weak. 2812 trivial. 0 not checked. [2020-07-19 21:47:59,213 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:47:59,214 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 43] total 45 [2020-07-19 21:47:59,214 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490587715] [2020-07-19 21:47:59,215 INFO L459 AbstractCegarLoop]: Interpolant automaton has 45 states [2020-07-19 21:47:59,215 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:47:59,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2020-07-19 21:47:59,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=830, Invalid=1150, Unknown=0, NotChecked=0, Total=1980 [2020-07-19 21:47:59,219 INFO L87 Difference]: Start difference. First operand 279 states and 279 transitions. Second operand 45 states. [2020-07-19 21:47:59,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:47:59,721 INFO L93 Difference]: Finished difference Result 289 states and 289 transitions. [2020-07-19 21:47:59,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2020-07-19 21:47:59,721 INFO L78 Accepts]: Start accepts. Automaton has 45 states. Word has length 276 [2020-07-19 21:47:59,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:47:59,724 INFO L225 Difference]: With dead ends: 289 [2020-07-19 21:47:59,725 INFO L226 Difference]: Without dead ends: 287 [2020-07-19 21:47:59,725 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 397 GetRequests, 353 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=836, Invalid=1234, Unknown=0, NotChecked=0, Total=2070 [2020-07-19 21:47:59,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2020-07-19 21:47:59,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 286. [2020-07-19 21:47:59,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 286 states. [2020-07-19 21:47:59,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 286 transitions. [2020-07-19 21:47:59,735 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 286 transitions. Word has length 276 [2020-07-19 21:47:59,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:47:59,735 INFO L479 AbstractCegarLoop]: Abstraction has 286 states and 286 transitions. [2020-07-19 21:47:59,735 INFO L480 AbstractCegarLoop]: Interpolant automaton has 45 states. [2020-07-19 21:47:59,735 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 286 transitions. [2020-07-19 21:47:59,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2020-07-19 21:47:59,737 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:47:59,737 INFO L422 BasicCegarLoop]: trace histogram [40, 40, 40, 39, 39, 39, 39, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:47:59,950 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2020-07-19 21:47:59,951 INFO L427 AbstractCegarLoop]: === Iteration 40 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:47:59,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:47:59,952 INFO L82 PathProgramCache]: Analyzing trace with hash -1535970520, now seen corresponding path program 39 times [2020-07-19 21:47:59,952 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:47:59,952 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400625164] [2020-07-19 21:47:59,952 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:47:59,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:00,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:00,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:00,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:00,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:00,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:00,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:00,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:00,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:00,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:00,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:00,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:00,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:00,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:00,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:00,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:00,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:00,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:00,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:00,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:00,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:00,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:00,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:00,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:00,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:00,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:00,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:00,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:00,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:00,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:00,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:00,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:00,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:00,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:00,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:00,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:00,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:00,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:00,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:00,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:00,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:01,038 INFO L134 CoverageAnalysis]: Checked inductivity of 5343 backedges. 78 proven. 2301 refuted. 0 times theorem prover too weak. 2964 trivial. 0 not checked. [2020-07-19 21:48:01,038 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400625164] [2020-07-19 21:48:01,038 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [272828365] [2020-07-19 21:48:01,038 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 40 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:48:01,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:01,113 INFO L263 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 43 conjunts are in the unsatisfiable core [2020-07-19 21:48:01,118 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:48:01,137 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:48:01,249 INFO L134 CoverageAnalysis]: Checked inductivity of 5343 backedges. 78 proven. 2301 refuted. 0 times theorem prover too weak. 2964 trivial. 0 not checked. [2020-07-19 21:48:01,249 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:48:01,249 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 44] total 46 [2020-07-19 21:48:01,249 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553921149] [2020-07-19 21:48:01,250 INFO L459 AbstractCegarLoop]: Interpolant automaton has 46 states [2020-07-19 21:48:01,250 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:48:01,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2020-07-19 21:48:01,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=871, Invalid=1199, Unknown=0, NotChecked=0, Total=2070 [2020-07-19 21:48:01,251 INFO L87 Difference]: Start difference. First operand 286 states and 286 transitions. Second operand 46 states. [2020-07-19 21:48:01,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:48:01,743 INFO L93 Difference]: Finished difference Result 296 states and 296 transitions. [2020-07-19 21:48:01,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2020-07-19 21:48:01,744 INFO L78 Accepts]: Start accepts. Automaton has 46 states. Word has length 283 [2020-07-19 21:48:01,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:48:01,746 INFO L225 Difference]: With dead ends: 296 [2020-07-19 21:48:01,746 INFO L226 Difference]: Without dead ends: 294 [2020-07-19 21:48:01,747 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 407 GetRequests, 362 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=877, Invalid=1285, Unknown=0, NotChecked=0, Total=2162 [2020-07-19 21:48:01,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-07-19 21:48:01,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 293. [2020-07-19 21:48:01,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 293 states. [2020-07-19 21:48:01,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 293 transitions. [2020-07-19 21:48:01,755 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 293 transitions. Word has length 283 [2020-07-19 21:48:01,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:48:01,756 INFO L479 AbstractCegarLoop]: Abstraction has 293 states and 293 transitions. [2020-07-19 21:48:01,756 INFO L480 AbstractCegarLoop]: Interpolant automaton has 46 states. [2020-07-19 21:48:01,756 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 293 transitions. [2020-07-19 21:48:01,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2020-07-19 21:48:01,758 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:48:01,758 INFO L422 BasicCegarLoop]: trace histogram [41, 41, 41, 40, 40, 40, 40, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:48:01,971 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2020-07-19 21:48:01,972 INFO L427 AbstractCegarLoop]: === Iteration 41 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:48:01,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:48:01,972 INFO L82 PathProgramCache]: Analyzing trace with hash 834069301, now seen corresponding path program 40 times [2020-07-19 21:48:01,973 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:48:01,973 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005748780] [2020-07-19 21:48:01,973 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:48:02,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:03,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:03,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:03,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:03,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:03,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:03,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:03,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:03,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:03,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:03,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:03,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:03,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:03,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:03,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:03,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:03,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:03,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:03,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:03,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:03,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:03,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:03,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:03,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:03,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:03,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:03,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:03,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:03,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:03,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:03,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:03,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:03,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:03,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:03,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:03,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:03,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:03,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:03,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:03,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:03,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:03,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:03,143 INFO L134 CoverageAnalysis]: Checked inductivity of 5620 backedges. 80 proven. 2420 refuted. 0 times theorem prover too weak. 3120 trivial. 0 not checked. [2020-07-19 21:48:03,144 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005748780] [2020-07-19 21:48:03,144 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [813440100] [2020-07-19 21:48:03,144 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 41 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 41 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:48:03,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:03,235 INFO L263 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 44 conjunts are in the unsatisfiable core [2020-07-19 21:48:03,240 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:48:03,263 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:48:03,399 INFO L134 CoverageAnalysis]: Checked inductivity of 5620 backedges. 80 proven. 2420 refuted. 0 times theorem prover too weak. 3120 trivial. 0 not checked. [2020-07-19 21:48:03,399 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:48:03,399 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 45] total 47 [2020-07-19 21:48:03,400 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302659097] [2020-07-19 21:48:03,404 INFO L459 AbstractCegarLoop]: Interpolant automaton has 47 states [2020-07-19 21:48:03,405 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:48:03,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2020-07-19 21:48:03,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=913, Invalid=1249, Unknown=0, NotChecked=0, Total=2162 [2020-07-19 21:48:03,406 INFO L87 Difference]: Start difference. First operand 293 states and 293 transitions. Second operand 47 states. [2020-07-19 21:48:03,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:48:03,938 INFO L93 Difference]: Finished difference Result 303 states and 303 transitions. [2020-07-19 21:48:03,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2020-07-19 21:48:03,938 INFO L78 Accepts]: Start accepts. Automaton has 47 states. Word has length 290 [2020-07-19 21:48:03,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:48:03,941 INFO L225 Difference]: With dead ends: 303 [2020-07-19 21:48:03,941 INFO L226 Difference]: Without dead ends: 301 [2020-07-19 21:48:03,943 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 417 GetRequests, 371 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=919, Invalid=1337, Unknown=0, NotChecked=0, Total=2256 [2020-07-19 21:48:03,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2020-07-19 21:48:03,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 300. [2020-07-19 21:48:03,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 300 states. [2020-07-19 21:48:03,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 300 transitions. [2020-07-19 21:48:03,971 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 300 transitions. Word has length 290 [2020-07-19 21:48:03,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:48:03,972 INFO L479 AbstractCegarLoop]: Abstraction has 300 states and 300 transitions. [2020-07-19 21:48:03,972 INFO L480 AbstractCegarLoop]: Interpolant automaton has 47 states. [2020-07-19 21:48:03,972 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 300 transitions. [2020-07-19 21:48:03,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2020-07-19 21:48:03,976 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:48:03,977 INFO L422 BasicCegarLoop]: trace histogram [42, 42, 42, 41, 41, 41, 41, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:48:04,177 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,41 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:48:04,178 INFO L427 AbstractCegarLoop]: === Iteration 42 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:48:04,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:48:04,178 INFO L82 PathProgramCache]: Analyzing trace with hash 596916872, now seen corresponding path program 41 times [2020-07-19 21:48:04,179 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:48:04,179 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800312254] [2020-07-19 21:48:04,179 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:48:04,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:05,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:05,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:05,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:05,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:05,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:05,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:05,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:05,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:05,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:05,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:05,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:05,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:05,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:05,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:05,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:05,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:05,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:05,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:05,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:05,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:05,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:05,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:05,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:05,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:05,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:05,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:05,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:05,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:05,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:05,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:05,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:05,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:05,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:05,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:05,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:05,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:05,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:05,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:05,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:05,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:05,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:05,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:05,625 INFO L134 CoverageAnalysis]: Checked inductivity of 5904 backedges. 82 proven. 2542 refuted. 0 times theorem prover too weak. 3280 trivial. 0 not checked. [2020-07-19 21:48:05,625 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800312254] [2020-07-19 21:48:05,626 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [484782962] [2020-07-19 21:48:05,626 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 42 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 42 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:48:05,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:05,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 514 conjuncts, 45 conjunts are in the unsatisfiable core [2020-07-19 21:48:05,730 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:48:05,751 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:48:05,838 INFO L134 CoverageAnalysis]: Checked inductivity of 5904 backedges. 82 proven. 2542 refuted. 0 times theorem prover too weak. 3280 trivial. 0 not checked. [2020-07-19 21:48:05,839 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:48:05,839 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 46] total 48 [2020-07-19 21:48:05,839 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723678361] [2020-07-19 21:48:05,840 INFO L459 AbstractCegarLoop]: Interpolant automaton has 48 states [2020-07-19 21:48:05,840 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:48:05,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2020-07-19 21:48:05,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=956, Invalid=1300, Unknown=0, NotChecked=0, Total=2256 [2020-07-19 21:48:05,840 INFO L87 Difference]: Start difference. First operand 300 states and 300 transitions. Second operand 48 states. [2020-07-19 21:48:06,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:48:06,407 INFO L93 Difference]: Finished difference Result 310 states and 310 transitions. [2020-07-19 21:48:06,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2020-07-19 21:48:06,408 INFO L78 Accepts]: Start accepts. Automaton has 48 states. Word has length 297 [2020-07-19 21:48:06,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:48:06,411 INFO L225 Difference]: With dead ends: 310 [2020-07-19 21:48:06,411 INFO L226 Difference]: Without dead ends: 308 [2020-07-19 21:48:06,412 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 427 GetRequests, 380 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=962, Invalid=1390, Unknown=0, NotChecked=0, Total=2352 [2020-07-19 21:48:06,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2020-07-19 21:48:06,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 307. [2020-07-19 21:48:06,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 307 states. [2020-07-19 21:48:06,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 307 transitions. [2020-07-19 21:48:06,422 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 307 transitions. Word has length 297 [2020-07-19 21:48:06,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:48:06,423 INFO L479 AbstractCegarLoop]: Abstraction has 307 states and 307 transitions. [2020-07-19 21:48:06,423 INFO L480 AbstractCegarLoop]: Interpolant automaton has 48 states. [2020-07-19 21:48:06,423 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 307 transitions. [2020-07-19 21:48:06,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2020-07-19 21:48:06,425 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:48:06,425 INFO L422 BasicCegarLoop]: trace histogram [43, 43, 43, 42, 42, 42, 42, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:48:06,639 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2020-07-19 21:48:06,640 INFO L427 AbstractCegarLoop]: === Iteration 43 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:48:06,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:48:06,641 INFO L82 PathProgramCache]: Analyzing trace with hash 56135637, now seen corresponding path program 42 times [2020-07-19 21:48:06,641 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:48:06,641 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666121686] [2020-07-19 21:48:06,641 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:48:06,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:07,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:07,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:07,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:07,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:07,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:07,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:07,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:07,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:07,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:07,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:07,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:07,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:07,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:07,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:07,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:07,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:07,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:07,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:07,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:07,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:07,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:07,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:07,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:07,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:07,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:07,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:07,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:07,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:07,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:07,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:07,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:07,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:07,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:07,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:07,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:07,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:07,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:07,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:07,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:07,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:07,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:07,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:07,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:08,054 INFO L134 CoverageAnalysis]: Checked inductivity of 6195 backedges. 84 proven. 2667 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2020-07-19 21:48:08,055 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666121686] [2020-07-19 21:48:08,055 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1370464747] [2020-07-19 21:48:08,055 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 43 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 43 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:48:08,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:08,137 INFO L263 TraceCheckSpWp]: Trace formula consists of 526 conjuncts, 46 conjunts are in the unsatisfiable core [2020-07-19 21:48:08,141 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:48:08,163 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:48:08,310 INFO L134 CoverageAnalysis]: Checked inductivity of 6195 backedges. 84 proven. 2667 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2020-07-19 21:48:08,311 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:48:08,311 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47] total 49 [2020-07-19 21:48:08,311 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001103391] [2020-07-19 21:48:08,312 INFO L459 AbstractCegarLoop]: Interpolant automaton has 49 states [2020-07-19 21:48:08,312 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:48:08,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2020-07-19 21:48:08,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1000, Invalid=1352, Unknown=0, NotChecked=0, Total=2352 [2020-07-19 21:48:08,314 INFO L87 Difference]: Start difference. First operand 307 states and 307 transitions. Second operand 49 states. [2020-07-19 21:48:08,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:48:08,831 INFO L93 Difference]: Finished difference Result 317 states and 317 transitions. [2020-07-19 21:48:08,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2020-07-19 21:48:08,832 INFO L78 Accepts]: Start accepts. Automaton has 49 states. Word has length 304 [2020-07-19 21:48:08,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:48:08,835 INFO L225 Difference]: With dead ends: 317 [2020-07-19 21:48:08,835 INFO L226 Difference]: Without dead ends: 315 [2020-07-19 21:48:08,836 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 437 GetRequests, 389 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1006, Invalid=1444, Unknown=0, NotChecked=0, Total=2450 [2020-07-19 21:48:08,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2020-07-19 21:48:08,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 314. [2020-07-19 21:48:08,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 314 states. [2020-07-19 21:48:08,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 314 transitions. [2020-07-19 21:48:08,845 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 314 transitions. Word has length 304 [2020-07-19 21:48:08,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:48:08,845 INFO L479 AbstractCegarLoop]: Abstraction has 314 states and 314 transitions. [2020-07-19 21:48:08,846 INFO L480 AbstractCegarLoop]: Interpolant automaton has 49 states. [2020-07-19 21:48:08,846 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 314 transitions. [2020-07-19 21:48:08,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2020-07-19 21:48:08,848 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:48:08,848 INFO L422 BasicCegarLoop]: trace histogram [44, 44, 44, 43, 43, 43, 43, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:48:09,061 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,43 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:48:09,062 INFO L427 AbstractCegarLoop]: === Iteration 44 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:48:09,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:48:09,063 INFO L82 PathProgramCache]: Analyzing trace with hash -1581966872, now seen corresponding path program 43 times [2020-07-19 21:48:09,063 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:48:09,063 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422360155] [2020-07-19 21:48:09,063 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:48:09,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:10,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:10,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:10,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:10,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:10,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:10,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:10,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:10,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:10,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:10,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:10,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:10,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:10,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:10,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:10,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:10,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:10,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:10,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:10,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:10,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:10,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:10,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:10,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:10,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:10,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:10,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:10,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:10,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:10,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:10,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:10,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:10,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:10,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:10,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:10,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:10,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:10,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:10,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:10,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:10,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:10,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:10,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:10,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:10,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:10,405 INFO L134 CoverageAnalysis]: Checked inductivity of 6493 backedges. 86 proven. 2795 refuted. 0 times theorem prover too weak. 3612 trivial. 0 not checked. [2020-07-19 21:48:10,406 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422360155] [2020-07-19 21:48:10,406 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2083860419] [2020-07-19 21:48:10,406 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 44 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 44 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:48:10,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:10,485 INFO L263 TraceCheckSpWp]: Trace formula consists of 538 conjuncts, 47 conjunts are in the unsatisfiable core [2020-07-19 21:48:10,488 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:48:10,508 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:48:10,632 INFO L134 CoverageAnalysis]: Checked inductivity of 6493 backedges. 86 proven. 2795 refuted. 0 times theorem prover too weak. 3612 trivial. 0 not checked. [2020-07-19 21:48:10,633 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:48:10,633 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48] total 50 [2020-07-19 21:48:10,633 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134814413] [2020-07-19 21:48:10,634 INFO L459 AbstractCegarLoop]: Interpolant automaton has 50 states [2020-07-19 21:48:10,634 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:48:10,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2020-07-19 21:48:10,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1045, Invalid=1405, Unknown=0, NotChecked=0, Total=2450 [2020-07-19 21:48:10,635 INFO L87 Difference]: Start difference. First operand 314 states and 314 transitions. Second operand 50 states. [2020-07-19 21:48:11,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:48:11,251 INFO L93 Difference]: Finished difference Result 324 states and 324 transitions. [2020-07-19 21:48:11,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2020-07-19 21:48:11,252 INFO L78 Accepts]: Start accepts. Automaton has 50 states. Word has length 311 [2020-07-19 21:48:11,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:48:11,255 INFO L225 Difference]: With dead ends: 324 [2020-07-19 21:48:11,255 INFO L226 Difference]: Without dead ends: 322 [2020-07-19 21:48:11,256 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 447 GetRequests, 398 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1051, Invalid=1499, Unknown=0, NotChecked=0, Total=2550 [2020-07-19 21:48:11,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2020-07-19 21:48:11,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 321. [2020-07-19 21:48:11,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 321 states. [2020-07-19 21:48:11,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 321 transitions. [2020-07-19 21:48:11,267 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 321 transitions. Word has length 311 [2020-07-19 21:48:11,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:48:11,268 INFO L479 AbstractCegarLoop]: Abstraction has 321 states and 321 transitions. [2020-07-19 21:48:11,268 INFO L480 AbstractCegarLoop]: Interpolant automaton has 50 states. [2020-07-19 21:48:11,268 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 321 transitions. [2020-07-19 21:48:11,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2020-07-19 21:48:11,271 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:48:11,272 INFO L422 BasicCegarLoop]: trace histogram [45, 45, 45, 44, 44, 44, 44, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:48:11,485 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,44 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:48:11,486 INFO L427 AbstractCegarLoop]: === Iteration 45 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:48:11,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:48:11,487 INFO L82 PathProgramCache]: Analyzing trace with hash 2076157045, now seen corresponding path program 44 times [2020-07-19 21:48:11,487 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:48:11,488 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629956763] [2020-07-19 21:48:11,488 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:48:11,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:12,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:12,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:12,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:12,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:12,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:12,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:12,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:12,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:12,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:12,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:12,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:12,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:12,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:12,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:12,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:12,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:12,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:12,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:12,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:12,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:12,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:12,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:12,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:12,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:12,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:12,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:12,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:12,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:12,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:12,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:12,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:12,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:12,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:12,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:12,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:12,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:12,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:12,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:12,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:12,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:12,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:12,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:12,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:12,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:12,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:12,939 INFO L134 CoverageAnalysis]: Checked inductivity of 6798 backedges. 88 proven. 2926 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2020-07-19 21:48:12,940 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629956763] [2020-07-19 21:48:12,940 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [25975245] [2020-07-19 21:48:12,940 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 45 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 45 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:48:13,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:13,047 INFO L263 TraceCheckSpWp]: Trace formula consists of 550 conjuncts, 48 conjunts are in the unsatisfiable core [2020-07-19 21:48:13,052 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:48:13,077 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:48:13,244 INFO L134 CoverageAnalysis]: Checked inductivity of 6798 backedges. 88 proven. 2926 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2020-07-19 21:48:13,245 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:48:13,245 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49] total 51 [2020-07-19 21:48:13,245 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787189928] [2020-07-19 21:48:13,246 INFO L459 AbstractCegarLoop]: Interpolant automaton has 51 states [2020-07-19 21:48:13,247 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:48:13,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2020-07-19 21:48:13,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1091, Invalid=1459, Unknown=0, NotChecked=0, Total=2550 [2020-07-19 21:48:13,248 INFO L87 Difference]: Start difference. First operand 321 states and 321 transitions. Second operand 51 states. [2020-07-19 21:48:13,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:48:13,898 INFO L93 Difference]: Finished difference Result 331 states and 331 transitions. [2020-07-19 21:48:13,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2020-07-19 21:48:13,899 INFO L78 Accepts]: Start accepts. Automaton has 51 states. Word has length 318 [2020-07-19 21:48:13,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:48:13,901 INFO L225 Difference]: With dead ends: 331 [2020-07-19 21:48:13,902 INFO L226 Difference]: Without dead ends: 329 [2020-07-19 21:48:13,903 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 457 GetRequests, 407 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1097, Invalid=1555, Unknown=0, NotChecked=0, Total=2652 [2020-07-19 21:48:13,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2020-07-19 21:48:13,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 328. [2020-07-19 21:48:13,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 328 states. [2020-07-19 21:48:13,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 328 transitions. [2020-07-19 21:48:13,912 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 328 transitions. Word has length 318 [2020-07-19 21:48:13,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:48:13,913 INFO L479 AbstractCegarLoop]: Abstraction has 328 states and 328 transitions. [2020-07-19 21:48:13,913 INFO L480 AbstractCegarLoop]: Interpolant automaton has 51 states. [2020-07-19 21:48:13,913 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 328 transitions. [2020-07-19 21:48:13,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2020-07-19 21:48:13,915 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:48:13,915 INFO L422 BasicCegarLoop]: trace histogram [46, 46, 46, 45, 45, 45, 45, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:48:14,129 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2020-07-19 21:48:14,130 INFO L427 AbstractCegarLoop]: === Iteration 46 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:48:14,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:48:14,131 INFO L82 PathProgramCache]: Analyzing trace with hash -1146384056, now seen corresponding path program 45 times [2020-07-19 21:48:14,131 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:48:14,131 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141073251] [2020-07-19 21:48:14,132 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:48:14,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:15,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:15,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:15,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:15,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:15,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:15,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:15,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:15,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:15,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:15,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:15,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:15,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:15,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:15,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:15,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:15,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:15,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:15,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:15,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:15,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:15,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:15,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:15,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:15,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:15,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:15,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:15,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:15,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:15,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:15,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:15,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:15,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:15,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:15,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:15,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:15,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:15,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:15,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:15,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:15,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:15,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:15,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:15,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:15,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:15,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:15,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:15,511 INFO L134 CoverageAnalysis]: Checked inductivity of 7110 backedges. 90 proven. 3060 refuted. 0 times theorem prover too weak. 3960 trivial. 0 not checked. [2020-07-19 21:48:15,511 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141073251] [2020-07-19 21:48:15,512 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1422292413] [2020-07-19 21:48:15,512 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 46 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 46 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:48:15,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:15,591 INFO L263 TraceCheckSpWp]: Trace formula consists of 562 conjuncts, 49 conjunts are in the unsatisfiable core [2020-07-19 21:48:15,595 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:48:15,616 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:48:15,788 INFO L134 CoverageAnalysis]: Checked inductivity of 7110 backedges. 90 proven. 3060 refuted. 0 times theorem prover too weak. 3960 trivial. 0 not checked. [2020-07-19 21:48:15,788 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:48:15,789 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 50] total 52 [2020-07-19 21:48:15,789 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024239306] [2020-07-19 21:48:15,789 INFO L459 AbstractCegarLoop]: Interpolant automaton has 52 states [2020-07-19 21:48:15,790 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:48:15,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2020-07-19 21:48:15,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1138, Invalid=1514, Unknown=0, NotChecked=0, Total=2652 [2020-07-19 21:48:15,791 INFO L87 Difference]: Start difference. First operand 328 states and 328 transitions. Second operand 52 states. [2020-07-19 21:48:16,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:48:16,475 INFO L93 Difference]: Finished difference Result 338 states and 338 transitions. [2020-07-19 21:48:16,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2020-07-19 21:48:16,476 INFO L78 Accepts]: Start accepts. Automaton has 52 states. Word has length 325 [2020-07-19 21:48:16,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:48:16,478 INFO L225 Difference]: With dead ends: 338 [2020-07-19 21:48:16,479 INFO L226 Difference]: Without dead ends: 336 [2020-07-19 21:48:16,479 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 467 GetRequests, 416 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1144, Invalid=1612, Unknown=0, NotChecked=0, Total=2756 [2020-07-19 21:48:16,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2020-07-19 21:48:16,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 335. [2020-07-19 21:48:16,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 335 states. [2020-07-19 21:48:16,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 335 transitions. [2020-07-19 21:48:16,490 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 335 transitions. Word has length 325 [2020-07-19 21:48:16,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:48:16,491 INFO L479 AbstractCegarLoop]: Abstraction has 335 states and 335 transitions. [2020-07-19 21:48:16,491 INFO L480 AbstractCegarLoop]: Interpolant automaton has 52 states. [2020-07-19 21:48:16,491 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 335 transitions. [2020-07-19 21:48:16,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2020-07-19 21:48:16,493 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:48:16,494 INFO L422 BasicCegarLoop]: trace histogram [47, 47, 47, 46, 46, 46, 46, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:48:16,708 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2020-07-19 21:48:16,709 INFO L427 AbstractCegarLoop]: === Iteration 47 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:48:16,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:48:16,709 INFO L82 PathProgramCache]: Analyzing trace with hash 22421781, now seen corresponding path program 46 times [2020-07-19 21:48:16,709 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:48:16,709 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569125431] [2020-07-19 21:48:16,709 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:48:16,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:18,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:18,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:18,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:18,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:18,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:18,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:18,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:18,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:18,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:18,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:18,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:18,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:18,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:18,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:18,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:18,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:18,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:18,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:18,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:18,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:18,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:18,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:18,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:18,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:18,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:18,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:18,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:18,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:18,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:18,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:18,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:18,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:18,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:18,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:18,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:18,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:18,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:18,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:18,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:18,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:18,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:18,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:18,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:18,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:18,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:18,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:18,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:18,312 INFO L134 CoverageAnalysis]: Checked inductivity of 7429 backedges. 92 proven. 3197 refuted. 0 times theorem prover too weak. 4140 trivial. 0 not checked. [2020-07-19 21:48:18,313 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569125431] [2020-07-19 21:48:18,313 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1311014974] [2020-07-19 21:48:18,313 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 47 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 47 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:48:18,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:18,407 INFO L263 TraceCheckSpWp]: Trace formula consists of 574 conjuncts, 50 conjunts are in the unsatisfiable core [2020-07-19 21:48:18,413 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:48:18,435 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:48:18,579 INFO L134 CoverageAnalysis]: Checked inductivity of 7429 backedges. 92 proven. 3197 refuted. 0 times theorem prover too weak. 4140 trivial. 0 not checked. [2020-07-19 21:48:18,580 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:48:18,580 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [51, 51] total 53 [2020-07-19 21:48:18,580 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061091375] [2020-07-19 21:48:18,581 INFO L459 AbstractCegarLoop]: Interpolant automaton has 53 states [2020-07-19 21:48:18,581 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:48:18,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2020-07-19 21:48:18,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1186, Invalid=1570, Unknown=0, NotChecked=0, Total=2756 [2020-07-19 21:48:18,583 INFO L87 Difference]: Start difference. First operand 335 states and 335 transitions. Second operand 53 states. [2020-07-19 21:48:19,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:48:19,258 INFO L93 Difference]: Finished difference Result 345 states and 345 transitions. [2020-07-19 21:48:19,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2020-07-19 21:48:19,258 INFO L78 Accepts]: Start accepts. Automaton has 53 states. Word has length 332 [2020-07-19 21:48:19,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:48:19,260 INFO L225 Difference]: With dead ends: 345 [2020-07-19 21:48:19,261 INFO L226 Difference]: Without dead ends: 343 [2020-07-19 21:48:19,261 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 477 GetRequests, 425 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1192, Invalid=1670, Unknown=0, NotChecked=0, Total=2862 [2020-07-19 21:48:19,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2020-07-19 21:48:19,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 342. [2020-07-19 21:48:19,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 342 states. [2020-07-19 21:48:19,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 342 transitions. [2020-07-19 21:48:19,271 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 342 transitions. Word has length 332 [2020-07-19 21:48:19,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:48:19,272 INFO L479 AbstractCegarLoop]: Abstraction has 342 states and 342 transitions. [2020-07-19 21:48:19,272 INFO L480 AbstractCegarLoop]: Interpolant automaton has 53 states. [2020-07-19 21:48:19,272 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 342 transitions. [2020-07-19 21:48:19,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2020-07-19 21:48:19,274 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:48:19,275 INFO L422 BasicCegarLoop]: trace histogram [48, 48, 48, 47, 47, 47, 47, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:48:19,489 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2020-07-19 21:48:19,490 INFO L427 AbstractCegarLoop]: === Iteration 48 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:48:19,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:48:19,491 INFO L82 PathProgramCache]: Analyzing trace with hash -540172120, now seen corresponding path program 47 times [2020-07-19 21:48:19,491 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:48:19,491 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276367759] [2020-07-19 21:48:19,491 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:48:19,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:20,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:20,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:20,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:20,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:20,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:20,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:20,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:20,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:20,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:20,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:20,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:20,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:20,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:20,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:20,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:20,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:20,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:20,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:20,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:20,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:20,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:20,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:20,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:20,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:20,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:20,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:20,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:20,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:20,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:20,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:20,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:20,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:20,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:20,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:20,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:20,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:20,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:20,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:20,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:20,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:20,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:20,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:21,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:21,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:21,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:21,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:21,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:21,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:21,054 INFO L134 CoverageAnalysis]: Checked inductivity of 7755 backedges. 94 proven. 3337 refuted. 0 times theorem prover too weak. 4324 trivial. 0 not checked. [2020-07-19 21:48:21,055 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276367759] [2020-07-19 21:48:21,055 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1747547260] [2020-07-19 21:48:21,055 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 48 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 48 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:48:21,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:21,138 INFO L263 TraceCheckSpWp]: Trace formula consists of 586 conjuncts, 51 conjunts are in the unsatisfiable core [2020-07-19 21:48:21,142 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:48:21,166 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:48:21,367 INFO L134 CoverageAnalysis]: Checked inductivity of 7755 backedges. 94 proven. 3337 refuted. 0 times theorem prover too weak. 4324 trivial. 0 not checked. [2020-07-19 21:48:21,368 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:48:21,368 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 52] total 54 [2020-07-19 21:48:21,368 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778255324] [2020-07-19 21:48:21,369 INFO L459 AbstractCegarLoop]: Interpolant automaton has 54 states [2020-07-19 21:48:21,370 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:48:21,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2020-07-19 21:48:21,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1235, Invalid=1627, Unknown=0, NotChecked=0, Total=2862 [2020-07-19 21:48:21,371 INFO L87 Difference]: Start difference. First operand 342 states and 342 transitions. Second operand 54 states. [2020-07-19 21:48:22,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:48:22,161 INFO L93 Difference]: Finished difference Result 352 states and 352 transitions. [2020-07-19 21:48:22,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2020-07-19 21:48:22,161 INFO L78 Accepts]: Start accepts. Automaton has 54 states. Word has length 339 [2020-07-19 21:48:22,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:48:22,164 INFO L225 Difference]: With dead ends: 352 [2020-07-19 21:48:22,164 INFO L226 Difference]: Without dead ends: 350 [2020-07-19 21:48:22,165 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 487 GetRequests, 434 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1241, Invalid=1729, Unknown=0, NotChecked=0, Total=2970 [2020-07-19 21:48:22,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2020-07-19 21:48:22,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 349. [2020-07-19 21:48:22,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2020-07-19 21:48:22,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 349 transitions. [2020-07-19 21:48:22,172 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 349 transitions. Word has length 339 [2020-07-19 21:48:22,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:48:22,172 INFO L479 AbstractCegarLoop]: Abstraction has 349 states and 349 transitions. [2020-07-19 21:48:22,173 INFO L480 AbstractCegarLoop]: Interpolant automaton has 54 states. [2020-07-19 21:48:22,173 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 349 transitions. [2020-07-19 21:48:22,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2020-07-19 21:48:22,175 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:48:22,175 INFO L422 BasicCegarLoop]: trace histogram [49, 49, 49, 48, 48, 48, 48, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:48:22,388 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47,48 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:48:22,389 INFO L427 AbstractCegarLoop]: === Iteration 49 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:48:22,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:48:22,389 INFO L82 PathProgramCache]: Analyzing trace with hash 2030437813, now seen corresponding path program 48 times [2020-07-19 21:48:22,389 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:48:22,390 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430864780] [2020-07-19 21:48:22,390 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:48:22,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:23,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:23,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:23,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:23,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:23,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:23,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:23,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:23,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:23,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:23,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:23,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:23,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:23,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:23,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:23,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:23,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:23,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:23,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:23,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:23,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:23,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:23,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:23,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:23,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:23,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:23,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:23,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:23,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:23,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:23,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:23,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:23,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:23,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:23,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:23,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:23,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:23,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:23,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:23,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:23,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:23,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:23,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:23,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:23,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:23,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:23,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:23,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:23,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:23,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:24,035 INFO L134 CoverageAnalysis]: Checked inductivity of 8088 backedges. 96 proven. 3480 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2020-07-19 21:48:24,035 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430864780] [2020-07-19 21:48:24,035 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [391414656] [2020-07-19 21:48:24,035 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 49 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 49 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:48:24,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:24,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 598 conjuncts, 52 conjunts are in the unsatisfiable core [2020-07-19 21:48:24,127 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:48:24,149 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:48:24,325 INFO L134 CoverageAnalysis]: Checked inductivity of 8088 backedges. 96 proven. 3480 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2020-07-19 21:48:24,326 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:48:24,326 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 53] total 55 [2020-07-19 21:48:24,326 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047631078] [2020-07-19 21:48:24,327 INFO L459 AbstractCegarLoop]: Interpolant automaton has 55 states [2020-07-19 21:48:24,327 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:48:24,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2020-07-19 21:48:24,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1285, Invalid=1685, Unknown=0, NotChecked=0, Total=2970 [2020-07-19 21:48:24,328 INFO L87 Difference]: Start difference. First operand 349 states and 349 transitions. Second operand 55 states. [2020-07-19 21:48:25,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:48:25,080 INFO L93 Difference]: Finished difference Result 359 states and 359 transitions. [2020-07-19 21:48:25,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2020-07-19 21:48:25,081 INFO L78 Accepts]: Start accepts. Automaton has 55 states. Word has length 346 [2020-07-19 21:48:25,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:48:25,082 INFO L225 Difference]: With dead ends: 359 [2020-07-19 21:48:25,082 INFO L226 Difference]: Without dead ends: 357 [2020-07-19 21:48:25,083 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 497 GetRequests, 443 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 193 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1291, Invalid=1789, Unknown=0, NotChecked=0, Total=3080 [2020-07-19 21:48:25,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2020-07-19 21:48:25,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 356. [2020-07-19 21:48:25,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2020-07-19 21:48:25,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 356 transitions. [2020-07-19 21:48:25,093 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 356 transitions. Word has length 346 [2020-07-19 21:48:25,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:48:25,093 INFO L479 AbstractCegarLoop]: Abstraction has 356 states and 356 transitions. [2020-07-19 21:48:25,093 INFO L480 AbstractCegarLoop]: Interpolant automaton has 55 states. [2020-07-19 21:48:25,093 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 356 transitions. [2020-07-19 21:48:25,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2020-07-19 21:48:25,096 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:48:25,096 INFO L422 BasicCegarLoop]: trace histogram [50, 50, 50, 49, 49, 49, 49, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:48:25,311 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2020-07-19 21:48:25,312 INFO L427 AbstractCegarLoop]: === Iteration 50 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:48:25,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:48:25,313 INFO L82 PathProgramCache]: Analyzing trace with hash -1376696312, now seen corresponding path program 49 times [2020-07-19 21:48:25,313 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:48:25,313 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235880052] [2020-07-19 21:48:25,314 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:48:25,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:26,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:26,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:26,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:26,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:26,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:26,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:26,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:26,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:26,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:26,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:26,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:26,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:26,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:26,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:26,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:26,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:26,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:26,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:26,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:26,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:26,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:26,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:26,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:26,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:26,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:26,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:26,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:26,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:26,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:26,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:26,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:26,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:26,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:26,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:26,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:26,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:26,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:26,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:26,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:26,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:26,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:26,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:26,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:26,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:26,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:26,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:26,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:26,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:26,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:26,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:27,017 INFO L134 CoverageAnalysis]: Checked inductivity of 8428 backedges. 98 proven. 3626 refuted. 0 times theorem prover too weak. 4704 trivial. 0 not checked. [2020-07-19 21:48:27,017 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235880052] [2020-07-19 21:48:27,017 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [807251228] [2020-07-19 21:48:27,017 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 50 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 50 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:48:27,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:27,114 INFO L263 TraceCheckSpWp]: Trace formula consists of 610 conjuncts, 53 conjunts are in the unsatisfiable core [2020-07-19 21:48:27,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:48:27,144 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:48:27,299 INFO L134 CoverageAnalysis]: Checked inductivity of 8428 backedges. 98 proven. 3626 refuted. 0 times theorem prover too weak. 4704 trivial. 0 not checked. [2020-07-19 21:48:27,299 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:48:27,300 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [54, 54] total 56 [2020-07-19 21:48:27,300 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198902022] [2020-07-19 21:48:27,301 INFO L459 AbstractCegarLoop]: Interpolant automaton has 56 states [2020-07-19 21:48:27,301 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:48:27,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2020-07-19 21:48:27,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1336, Invalid=1744, Unknown=0, NotChecked=0, Total=3080 [2020-07-19 21:48:27,302 INFO L87 Difference]: Start difference. First operand 356 states and 356 transitions. Second operand 56 states. [2020-07-19 21:48:28,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:48:28,080 INFO L93 Difference]: Finished difference Result 366 states and 366 transitions. [2020-07-19 21:48:28,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2020-07-19 21:48:28,081 INFO L78 Accepts]: Start accepts. Automaton has 56 states. Word has length 353 [2020-07-19 21:48:28,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:48:28,083 INFO L225 Difference]: With dead ends: 366 [2020-07-19 21:48:28,083 INFO L226 Difference]: Without dead ends: 364 [2020-07-19 21:48:28,084 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 507 GetRequests, 452 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1342, Invalid=1850, Unknown=0, NotChecked=0, Total=3192 [2020-07-19 21:48:28,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2020-07-19 21:48:28,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 363. [2020-07-19 21:48:28,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 363 states. [2020-07-19 21:48:28,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 363 transitions. [2020-07-19 21:48:28,093 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 363 transitions. Word has length 353 [2020-07-19 21:48:28,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:48:28,094 INFO L479 AbstractCegarLoop]: Abstraction has 363 states and 363 transitions. [2020-07-19 21:48:28,094 INFO L480 AbstractCegarLoop]: Interpolant automaton has 56 states. [2020-07-19 21:48:28,094 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 363 transitions. [2020-07-19 21:48:28,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2020-07-19 21:48:28,097 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:48:28,097 INFO L422 BasicCegarLoop]: trace histogram [51, 51, 51, 50, 50, 50, 50, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:48:28,309 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2020-07-19 21:48:28,310 INFO L427 AbstractCegarLoop]: === Iteration 51 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:48:28,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:48:28,311 INFO L82 PathProgramCache]: Analyzing trace with hash -432450987, now seen corresponding path program 50 times [2020-07-19 21:48:28,311 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:48:28,312 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738885227] [2020-07-19 21:48:28,312 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:48:28,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:29,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:29,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:29,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:29,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:29,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:29,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:29,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:29,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:29,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:29,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:29,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:29,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:29,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:29,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:29,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:29,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:29,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:29,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:29,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:29,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:29,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:29,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:29,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:29,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:29,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:29,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:29,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:29,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:29,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:29,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:29,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:29,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:29,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:29,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:29,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:29,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:29,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:29,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:29,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:29,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:29,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:29,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:29,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:29,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:29,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:29,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:29,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:29,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:29,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:30,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:30,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:30,071 INFO L134 CoverageAnalysis]: Checked inductivity of 8775 backedges. 100 proven. 3775 refuted. 0 times theorem prover too weak. 4900 trivial. 0 not checked. [2020-07-19 21:48:30,072 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738885227] [2020-07-19 21:48:30,072 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [500881082] [2020-07-19 21:48:30,072 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 51 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 51 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:48:30,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:30,159 INFO L263 TraceCheckSpWp]: Trace formula consists of 622 conjuncts, 54 conjunts are in the unsatisfiable core [2020-07-19 21:48:30,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:48:30,188 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:48:30,323 INFO L134 CoverageAnalysis]: Checked inductivity of 8775 backedges. 100 proven. 3775 refuted. 0 times theorem prover too weak. 4900 trivial. 0 not checked. [2020-07-19 21:48:30,324 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:48:30,324 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [55, 55] total 57 [2020-07-19 21:48:30,324 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630497445] [2020-07-19 21:48:30,325 INFO L459 AbstractCegarLoop]: Interpolant automaton has 57 states [2020-07-19 21:48:30,325 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:48:30,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2020-07-19 21:48:30,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1388, Invalid=1804, Unknown=0, NotChecked=0, Total=3192 [2020-07-19 21:48:30,326 INFO L87 Difference]: Start difference. First operand 363 states and 363 transitions. Second operand 57 states. [2020-07-19 21:48:31,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:48:31,231 INFO L93 Difference]: Finished difference Result 373 states and 373 transitions. [2020-07-19 21:48:31,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2020-07-19 21:48:31,232 INFO L78 Accepts]: Start accepts. Automaton has 57 states. Word has length 360 [2020-07-19 21:48:31,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:48:31,234 INFO L225 Difference]: With dead ends: 373 [2020-07-19 21:48:31,234 INFO L226 Difference]: Without dead ends: 371 [2020-07-19 21:48:31,235 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 517 GetRequests, 461 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1394, Invalid=1912, Unknown=0, NotChecked=0, Total=3306 [2020-07-19 21:48:31,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2020-07-19 21:48:31,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 370. [2020-07-19 21:48:31,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 370 states. [2020-07-19 21:48:31,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 370 transitions. [2020-07-19 21:48:31,243 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 370 transitions. Word has length 360 [2020-07-19 21:48:31,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:48:31,244 INFO L479 AbstractCegarLoop]: Abstraction has 370 states and 370 transitions. [2020-07-19 21:48:31,244 INFO L480 AbstractCegarLoop]: Interpolant automaton has 57 states. [2020-07-19 21:48:31,244 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 370 transitions. [2020-07-19 21:48:31,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2020-07-19 21:48:31,247 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:48:31,247 INFO L422 BasicCegarLoop]: trace histogram [52, 52, 52, 51, 51, 51, 51, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:48:31,460 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,51 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:48:31,461 INFO L427 AbstractCegarLoop]: === Iteration 52 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:48:31,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:48:31,461 INFO L82 PathProgramCache]: Analyzing trace with hash 1466730344, now seen corresponding path program 51 times [2020-07-19 21:48:31,461 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:48:31,461 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013731779] [2020-07-19 21:48:31,461 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:48:31,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:33,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:33,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:33,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:33,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:33,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:33,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:33,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:33,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:33,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:33,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:33,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:33,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:33,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:33,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:33,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:33,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:33,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:33,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:33,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:33,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:33,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:33,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:33,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:33,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:33,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:33,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:33,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:33,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:33,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:33,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:33,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:33,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:33,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:33,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:33,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:33,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:33,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:33,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:33,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:33,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:33,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:33,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:33,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:33,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:33,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:33,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:33,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:33,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:33,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:33,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:33,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:33,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:33,247 INFO L134 CoverageAnalysis]: Checked inductivity of 9129 backedges. 102 proven. 3927 refuted. 0 times theorem prover too weak. 5100 trivial. 0 not checked. [2020-07-19 21:48:33,248 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013731779] [2020-07-19 21:48:33,248 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1576276063] [2020-07-19 21:48:33,248 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 52 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 52 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:48:33,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:33,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 634 conjuncts, 55 conjunts are in the unsatisfiable core [2020-07-19 21:48:33,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:48:33,372 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:48:33,511 INFO L134 CoverageAnalysis]: Checked inductivity of 9129 backedges. 102 proven. 3927 refuted. 0 times theorem prover too weak. 5100 trivial. 0 not checked. [2020-07-19 21:48:33,512 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:48:33,512 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [56, 56] total 58 [2020-07-19 21:48:33,512 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836120366] [2020-07-19 21:48:33,513 INFO L459 AbstractCegarLoop]: Interpolant automaton has 58 states [2020-07-19 21:48:33,513 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:48:33,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2020-07-19 21:48:33,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1441, Invalid=1865, Unknown=0, NotChecked=0, Total=3306 [2020-07-19 21:48:33,514 INFO L87 Difference]: Start difference. First operand 370 states and 370 transitions. Second operand 58 states. [2020-07-19 21:48:34,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:48:34,407 INFO L93 Difference]: Finished difference Result 380 states and 380 transitions. [2020-07-19 21:48:34,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2020-07-19 21:48:34,408 INFO L78 Accepts]: Start accepts. Automaton has 58 states. Word has length 367 [2020-07-19 21:48:34,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:48:34,410 INFO L225 Difference]: With dead ends: 380 [2020-07-19 21:48:34,410 INFO L226 Difference]: Without dead ends: 378 [2020-07-19 21:48:34,411 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 527 GetRequests, 470 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1447, Invalid=1975, Unknown=0, NotChecked=0, Total=3422 [2020-07-19 21:48:34,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2020-07-19 21:48:34,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 377. [2020-07-19 21:48:34,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 377 states. [2020-07-19 21:48:34,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 377 transitions. [2020-07-19 21:48:34,419 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 377 transitions. Word has length 367 [2020-07-19 21:48:34,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:48:34,420 INFO L479 AbstractCegarLoop]: Abstraction has 377 states and 377 transitions. [2020-07-19 21:48:34,420 INFO L480 AbstractCegarLoop]: Interpolant automaton has 58 states. [2020-07-19 21:48:34,420 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 377 transitions. [2020-07-19 21:48:34,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2020-07-19 21:48:34,422 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:48:34,423 INFO L422 BasicCegarLoop]: trace histogram [53, 53, 53, 52, 52, 52, 52, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:48:34,624 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable51 [2020-07-19 21:48:34,625 INFO L427 AbstractCegarLoop]: === Iteration 53 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:48:34,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:48:34,626 INFO L82 PathProgramCache]: Analyzing trace with hash 182060789, now seen corresponding path program 52 times [2020-07-19 21:48:34,626 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:48:34,627 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112806508] [2020-07-19 21:48:34,627 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:48:34,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:36,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:36,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:36,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:36,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:36,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:36,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:36,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:36,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:36,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:36,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:36,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:36,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:36,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:36,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:36,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:36,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:36,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:36,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:36,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:36,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:36,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:36,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:36,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:36,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:36,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:36,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:36,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:36,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:36,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:36,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:36,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:36,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:36,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:36,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:36,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:36,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:36,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:36,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:36,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:36,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:36,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:36,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:36,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:36,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:36,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:36,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:36,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:36,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:36,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:36,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:36,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:36,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:36,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:36,529 INFO L134 CoverageAnalysis]: Checked inductivity of 9490 backedges. 104 proven. 4082 refuted. 0 times theorem prover too weak. 5304 trivial. 0 not checked. [2020-07-19 21:48:36,529 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112806508] [2020-07-19 21:48:36,530 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [487260494] [2020-07-19 21:48:36,530 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 53 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 53 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:48:36,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:36,630 INFO L263 TraceCheckSpWp]: Trace formula consists of 646 conjuncts, 56 conjunts are in the unsatisfiable core [2020-07-19 21:48:36,633 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:48:36,658 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:48:36,928 INFO L134 CoverageAnalysis]: Checked inductivity of 9490 backedges. 104 proven. 4082 refuted. 0 times theorem prover too weak. 5304 trivial. 0 not checked. [2020-07-19 21:48:36,929 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:48:36,929 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [57, 57] total 59 [2020-07-19 21:48:36,930 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928370796] [2020-07-19 21:48:36,931 INFO L459 AbstractCegarLoop]: Interpolant automaton has 59 states [2020-07-19 21:48:36,931 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:48:36,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2020-07-19 21:48:36,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1495, Invalid=1927, Unknown=0, NotChecked=0, Total=3422 [2020-07-19 21:48:36,933 INFO L87 Difference]: Start difference. First operand 377 states and 377 transitions. Second operand 59 states. [2020-07-19 21:48:37,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:48:37,935 INFO L93 Difference]: Finished difference Result 387 states and 387 transitions. [2020-07-19 21:48:37,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2020-07-19 21:48:37,935 INFO L78 Accepts]: Start accepts. Automaton has 59 states. Word has length 374 [2020-07-19 21:48:37,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:48:37,937 INFO L225 Difference]: With dead ends: 387 [2020-07-19 21:48:37,937 INFO L226 Difference]: Without dead ends: 385 [2020-07-19 21:48:37,938 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 537 GetRequests, 479 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1501, Invalid=2039, Unknown=0, NotChecked=0, Total=3540 [2020-07-19 21:48:37,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2020-07-19 21:48:37,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 384. [2020-07-19 21:48:37,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 384 states. [2020-07-19 21:48:37,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 384 transitions. [2020-07-19 21:48:37,945 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 384 transitions. Word has length 374 [2020-07-19 21:48:37,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:48:37,946 INFO L479 AbstractCegarLoop]: Abstraction has 384 states and 384 transitions. [2020-07-19 21:48:37,946 INFO L480 AbstractCegarLoop]: Interpolant automaton has 59 states. [2020-07-19 21:48:37,946 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 384 transitions. [2020-07-19 21:48:37,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 382 [2020-07-19 21:48:37,949 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:48:37,949 INFO L422 BasicCegarLoop]: trace histogram [54, 54, 54, 53, 53, 53, 53, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:48:38,164 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,53 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:48:38,165 INFO L427 AbstractCegarLoop]: === Iteration 54 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:48:38,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:48:38,166 INFO L82 PathProgramCache]: Analyzing trace with hash -15376696, now seen corresponding path program 53 times [2020-07-19 21:48:38,166 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:48:38,166 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703279609] [2020-07-19 21:48:38,167 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:48:38,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:39,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:39,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:39,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:39,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:39,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:39,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:39,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:39,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:39,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:39,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:39,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:39,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:39,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:40,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:40,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:40,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:40,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:40,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:40,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:40,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:40,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:40,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:40,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:40,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:40,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:40,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:40,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:40,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:40,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:40,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:40,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:40,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:40,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:40,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:40,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:40,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:40,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:40,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:40,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:40,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:40,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:40,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:40,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:40,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:40,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:40,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:40,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:40,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:40,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:40,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:40,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:40,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:40,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:40,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:40,144 INFO L134 CoverageAnalysis]: Checked inductivity of 9858 backedges. 106 proven. 4240 refuted. 0 times theorem prover too weak. 5512 trivial. 0 not checked. [2020-07-19 21:48:40,145 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703279609] [2020-07-19 21:48:40,145 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [457755912] [2020-07-19 21:48:40,145 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 54 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 54 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:48:40,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:40,241 INFO L263 TraceCheckSpWp]: Trace formula consists of 658 conjuncts, 57 conjunts are in the unsatisfiable core [2020-07-19 21:48:40,245 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:48:40,263 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:48:40,402 INFO L134 CoverageAnalysis]: Checked inductivity of 9858 backedges. 106 proven. 4240 refuted. 0 times theorem prover too weak. 5512 trivial. 0 not checked. [2020-07-19 21:48:40,403 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:48:40,403 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [58, 58] total 60 [2020-07-19 21:48:40,403 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104131041] [2020-07-19 21:48:40,403 INFO L459 AbstractCegarLoop]: Interpolant automaton has 60 states [2020-07-19 21:48:40,403 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:48:40,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2020-07-19 21:48:40,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1550, Invalid=1990, Unknown=0, NotChecked=0, Total=3540 [2020-07-19 21:48:40,404 INFO L87 Difference]: Start difference. First operand 384 states and 384 transitions. Second operand 60 states. [2020-07-19 21:48:41,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:48:41,388 INFO L93 Difference]: Finished difference Result 394 states and 394 transitions. [2020-07-19 21:48:41,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2020-07-19 21:48:41,389 INFO L78 Accepts]: Start accepts. Automaton has 60 states. Word has length 381 [2020-07-19 21:48:41,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:48:41,390 INFO L225 Difference]: With dead ends: 394 [2020-07-19 21:48:41,390 INFO L226 Difference]: Without dead ends: 392 [2020-07-19 21:48:41,391 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 547 GetRequests, 488 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1556, Invalid=2104, Unknown=0, NotChecked=0, Total=3660 [2020-07-19 21:48:41,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2020-07-19 21:48:41,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 391. [2020-07-19 21:48:41,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 391 states. [2020-07-19 21:48:41,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 391 transitions. [2020-07-19 21:48:41,399 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 391 transitions. Word has length 381 [2020-07-19 21:48:41,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:48:41,400 INFO L479 AbstractCegarLoop]: Abstraction has 391 states and 391 transitions. [2020-07-19 21:48:41,400 INFO L480 AbstractCegarLoop]: Interpolant automaton has 60 states. [2020-07-19 21:48:41,400 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 391 transitions. [2020-07-19 21:48:41,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 389 [2020-07-19 21:48:41,403 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:48:41,403 INFO L422 BasicCegarLoop]: trace histogram [55, 55, 55, 54, 54, 54, 54, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:48:41,617 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable53 [2020-07-19 21:48:41,618 INFO L427 AbstractCegarLoop]: === Iteration 55 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:48:41,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:48:41,619 INFO L82 PathProgramCache]: Analyzing trace with hash 122823573, now seen corresponding path program 54 times [2020-07-19 21:48:41,619 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:48:41,620 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712531923] [2020-07-19 21:48:41,620 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:48:41,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:43,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:43,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:43,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:43,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:43,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:43,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:43,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:43,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:43,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:43,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:43,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:43,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:43,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:43,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:43,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:43,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:43,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:43,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:43,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:43,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:43,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:43,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:43,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:43,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:43,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:43,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:43,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:43,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:43,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:43,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:43,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:43,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:43,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:43,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:43,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:43,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:43,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:43,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:43,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:43,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:43,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:43,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:43,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:43,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:43,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:43,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:43,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:43,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:43,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:43,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:43,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:43,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:43,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:43,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:43,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:43,729 INFO L134 CoverageAnalysis]: Checked inductivity of 10233 backedges. 108 proven. 4401 refuted. 0 times theorem prover too weak. 5724 trivial. 0 not checked. [2020-07-19 21:48:43,729 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712531923] [2020-07-19 21:48:43,730 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1656448593] [2020-07-19 21:48:43,730 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 55 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 55 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:48:43,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:43,826 INFO L263 TraceCheckSpWp]: Trace formula consists of 670 conjuncts, 58 conjunts are in the unsatisfiable core [2020-07-19 21:48:43,830 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:48:43,853 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:48:44,031 INFO L134 CoverageAnalysis]: Checked inductivity of 10233 backedges. 108 proven. 4401 refuted. 0 times theorem prover too weak. 5724 trivial. 0 not checked. [2020-07-19 21:48:44,031 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:48:44,031 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [59, 59] total 61 [2020-07-19 21:48:44,031 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383582843] [2020-07-19 21:48:44,032 INFO L459 AbstractCegarLoop]: Interpolant automaton has 61 states [2020-07-19 21:48:44,032 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:48:44,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2020-07-19 21:48:44,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1606, Invalid=2054, Unknown=0, NotChecked=0, Total=3660 [2020-07-19 21:48:44,033 INFO L87 Difference]: Start difference. First operand 391 states and 391 transitions. Second operand 61 states. [2020-07-19 21:48:45,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:48:45,020 INFO L93 Difference]: Finished difference Result 401 states and 401 transitions. [2020-07-19 21:48:45,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2020-07-19 21:48:45,021 INFO L78 Accepts]: Start accepts. Automaton has 61 states. Word has length 388 [2020-07-19 21:48:45,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:48:45,023 INFO L225 Difference]: With dead ends: 401 [2020-07-19 21:48:45,023 INFO L226 Difference]: Without dead ends: 399 [2020-07-19 21:48:45,024 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 557 GetRequests, 497 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=1612, Invalid=2170, Unknown=0, NotChecked=0, Total=3782 [2020-07-19 21:48:45,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2020-07-19 21:48:45,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 398. [2020-07-19 21:48:45,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 398 states. [2020-07-19 21:48:45,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 398 transitions. [2020-07-19 21:48:45,032 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 398 transitions. Word has length 388 [2020-07-19 21:48:45,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:48:45,032 INFO L479 AbstractCegarLoop]: Abstraction has 398 states and 398 transitions. [2020-07-19 21:48:45,032 INFO L480 AbstractCegarLoop]: Interpolant automaton has 61 states. [2020-07-19 21:48:45,032 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 398 transitions. [2020-07-19 21:48:45,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2020-07-19 21:48:45,035 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:48:45,035 INFO L422 BasicCegarLoop]: trace histogram [56, 56, 56, 55, 55, 55, 55, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:48:45,238 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable54 [2020-07-19 21:48:45,239 INFO L427 AbstractCegarLoop]: === Iteration 56 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:48:45,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:48:45,240 INFO L82 PathProgramCache]: Analyzing trace with hash 423743016, now seen corresponding path program 55 times [2020-07-19 21:48:45,240 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:48:45,240 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979404684] [2020-07-19 21:48:45,241 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:48:45,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:47,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:47,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:47,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:47,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:47,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:47,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:47,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:47,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:47,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:47,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:47,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:47,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:47,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:47,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:47,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:47,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:47,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:47,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:47,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:47,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:47,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:47,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:47,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:47,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:47,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:47,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:47,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:47,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:47,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:47,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:47,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:47,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:47,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:47,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:47,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:47,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:47,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:47,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:47,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:47,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:47,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:47,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:47,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:47,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:47,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:47,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:47,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:47,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:47,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:47,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:47,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:47,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:47,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:47,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:47,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:47,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:47,361 INFO L134 CoverageAnalysis]: Checked inductivity of 10615 backedges. 110 proven. 4565 refuted. 0 times theorem prover too weak. 5940 trivial. 0 not checked. [2020-07-19 21:48:47,362 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979404684] [2020-07-19 21:48:47,362 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1053320436] [2020-07-19 21:48:47,362 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 56 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 56 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:48:47,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:47,462 INFO L263 TraceCheckSpWp]: Trace formula consists of 682 conjuncts, 59 conjunts are in the unsatisfiable core [2020-07-19 21:48:47,466 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:48:47,496 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:48:47,642 INFO L134 CoverageAnalysis]: Checked inductivity of 10615 backedges. 110 proven. 4565 refuted. 0 times theorem prover too weak. 5940 trivial. 0 not checked. [2020-07-19 21:48:47,643 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:48:47,643 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [60, 60] total 62 [2020-07-19 21:48:47,643 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777723271] [2020-07-19 21:48:47,644 INFO L459 AbstractCegarLoop]: Interpolant automaton has 62 states [2020-07-19 21:48:47,644 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:48:47,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2020-07-19 21:48:47,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1663, Invalid=2119, Unknown=0, NotChecked=0, Total=3782 [2020-07-19 21:48:47,644 INFO L87 Difference]: Start difference. First operand 398 states and 398 transitions. Second operand 62 states. [2020-07-19 21:48:48,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:48:48,535 INFO L93 Difference]: Finished difference Result 408 states and 408 transitions. [2020-07-19 21:48:48,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2020-07-19 21:48:48,536 INFO L78 Accepts]: Start accepts. Automaton has 62 states. Word has length 395 [2020-07-19 21:48:48,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:48:48,538 INFO L225 Difference]: With dead ends: 408 [2020-07-19 21:48:48,539 INFO L226 Difference]: Without dead ends: 406 [2020-07-19 21:48:48,539 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 567 GetRequests, 506 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=1669, Invalid=2237, Unknown=0, NotChecked=0, Total=3906 [2020-07-19 21:48:48,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states. [2020-07-19 21:48:48,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 405. [2020-07-19 21:48:48,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 405 states. [2020-07-19 21:48:48,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 405 transitions. [2020-07-19 21:48:48,549 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 405 transitions. Word has length 395 [2020-07-19 21:48:48,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:48:48,550 INFO L479 AbstractCegarLoop]: Abstraction has 405 states and 405 transitions. [2020-07-19 21:48:48,550 INFO L480 AbstractCegarLoop]: Interpolant automaton has 62 states. [2020-07-19 21:48:48,550 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 405 transitions. [2020-07-19 21:48:48,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 403 [2020-07-19 21:48:48,553 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:48:48,554 INFO L422 BasicCegarLoop]: trace histogram [57, 57, 57, 56, 56, 56, 56, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:48:48,767 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55,56 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:48:48,768 INFO L427 AbstractCegarLoop]: === Iteration 57 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:48:48,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:48:48,768 INFO L82 PathProgramCache]: Analyzing trace with hash -91510731, now seen corresponding path program 56 times [2020-07-19 21:48:48,769 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:48:48,769 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137554772] [2020-07-19 21:48:48,769 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:48:48,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:51,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:51,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:51,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:51,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:51,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:51,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:51,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:51,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:51,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:51,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:51,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:51,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:51,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:51,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:51,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:51,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:51,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:51,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:51,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:51,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:51,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:51,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:51,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:51,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:51,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:51,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:51,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:51,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:51,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:51,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:51,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:51,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:51,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:51,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:51,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:51,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:51,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:51,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:51,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:51,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:51,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:51,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:51,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:51,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:51,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:51,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:51,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:51,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:51,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:51,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:51,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:51,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:51,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:51,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:51,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:51,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:51,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:51,353 INFO L134 CoverageAnalysis]: Checked inductivity of 11004 backedges. 112 proven. 4732 refuted. 0 times theorem prover too weak. 6160 trivial. 0 not checked. [2020-07-19 21:48:51,353 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137554772] [2020-07-19 21:48:51,353 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1014473459] [2020-07-19 21:48:51,353 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 57 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 57 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:48:51,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:51,460 INFO L263 TraceCheckSpWp]: Trace formula consists of 694 conjuncts, 60 conjunts are in the unsatisfiable core [2020-07-19 21:48:51,465 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:48:51,489 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:48:51,817 INFO L134 CoverageAnalysis]: Checked inductivity of 11004 backedges. 112 proven. 4732 refuted. 0 times theorem prover too weak. 6160 trivial. 0 not checked. [2020-07-19 21:48:51,818 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:48:51,818 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [61, 61] total 63 [2020-07-19 21:48:51,819 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884764031] [2020-07-19 21:48:51,820 INFO L459 AbstractCegarLoop]: Interpolant automaton has 63 states [2020-07-19 21:48:51,820 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:48:51,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2020-07-19 21:48:51,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1721, Invalid=2185, Unknown=0, NotChecked=0, Total=3906 [2020-07-19 21:48:51,822 INFO L87 Difference]: Start difference. First operand 405 states and 405 transitions. Second operand 63 states. [2020-07-19 21:48:53,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:48:53,062 INFO L93 Difference]: Finished difference Result 415 states and 415 transitions. [2020-07-19 21:48:53,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2020-07-19 21:48:53,062 INFO L78 Accepts]: Start accepts. Automaton has 63 states. Word has length 402 [2020-07-19 21:48:53,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:48:53,065 INFO L225 Difference]: With dead ends: 415 [2020-07-19 21:48:53,065 INFO L226 Difference]: Without dead ends: 413 [2020-07-19 21:48:53,065 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 577 GetRequests, 515 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1727, Invalid=2305, Unknown=0, NotChecked=0, Total=4032 [2020-07-19 21:48:53,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2020-07-19 21:48:53,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 412. [2020-07-19 21:48:53,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 412 states. [2020-07-19 21:48:53,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 412 transitions. [2020-07-19 21:48:53,074 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 412 transitions. Word has length 402 [2020-07-19 21:48:53,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:48:53,074 INFO L479 AbstractCegarLoop]: Abstraction has 412 states and 412 transitions. [2020-07-19 21:48:53,074 INFO L480 AbstractCegarLoop]: Interpolant automaton has 63 states. [2020-07-19 21:48:53,074 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 412 transitions. [2020-07-19 21:48:53,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 410 [2020-07-19 21:48:53,077 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:48:53,078 INFO L422 BasicCegarLoop]: trace histogram [58, 58, 58, 57, 57, 57, 57, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:48:53,291 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2020-07-19 21:48:53,292 INFO L427 AbstractCegarLoop]: === Iteration 58 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:48:53,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:48:53,293 INFO L82 PathProgramCache]: Analyzing trace with hash -876096120, now seen corresponding path program 57 times [2020-07-19 21:48:53,294 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:48:53,294 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264669157] [2020-07-19 21:48:53,294 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:48:53,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:55,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:55,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:55,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:55,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:55,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:55,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:55,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:55,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:55,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:55,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:55,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:55,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:55,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:55,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:55,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:55,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:55,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:55,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:55,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:55,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:55,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:55,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:55,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:55,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:55,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:55,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:55,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:55,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:55,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:55,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:55,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:55,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:55,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:55,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:55,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:55,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:55,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:55,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:55,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:55,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:55,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:55,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:55,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:55,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:55,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:55,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:55,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:55,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:55,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:55,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:55,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:55,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:55,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:55,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:55,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:55,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:55,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:55,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:55,642 INFO L134 CoverageAnalysis]: Checked inductivity of 11400 backedges. 114 proven. 4902 refuted. 0 times theorem prover too weak. 6384 trivial. 0 not checked. [2020-07-19 21:48:55,643 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264669157] [2020-07-19 21:48:55,643 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2094058368] [2020-07-19 21:48:55,643 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 58 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 58 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:48:55,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:55,745 INFO L263 TraceCheckSpWp]: Trace formula consists of 706 conjuncts, 61 conjunts are in the unsatisfiable core [2020-07-19 21:48:55,749 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:48:55,769 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:48:55,962 INFO L134 CoverageAnalysis]: Checked inductivity of 11400 backedges. 114 proven. 4902 refuted. 0 times theorem prover too weak. 6384 trivial. 0 not checked. [2020-07-19 21:48:55,962 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:48:55,963 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [62, 62] total 64 [2020-07-19 21:48:55,963 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637623792] [2020-07-19 21:48:55,964 INFO L459 AbstractCegarLoop]: Interpolant automaton has 64 states [2020-07-19 21:48:55,964 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:48:55,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2020-07-19 21:48:55,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1780, Invalid=2252, Unknown=0, NotChecked=0, Total=4032 [2020-07-19 21:48:55,965 INFO L87 Difference]: Start difference. First operand 412 states and 412 transitions. Second operand 64 states. [2020-07-19 21:48:57,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:48:57,045 INFO L93 Difference]: Finished difference Result 422 states and 422 transitions. [2020-07-19 21:48:57,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2020-07-19 21:48:57,045 INFO L78 Accepts]: Start accepts. Automaton has 64 states. Word has length 409 [2020-07-19 21:48:57,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:48:57,047 INFO L225 Difference]: With dead ends: 422 [2020-07-19 21:48:57,047 INFO L226 Difference]: Without dead ends: 420 [2020-07-19 21:48:57,048 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 587 GetRequests, 524 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=1786, Invalid=2374, Unknown=0, NotChecked=0, Total=4160 [2020-07-19 21:48:57,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2020-07-19 21:48:57,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 419. [2020-07-19 21:48:57,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 419 states. [2020-07-19 21:48:57,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 419 transitions. [2020-07-19 21:48:57,056 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 419 transitions. Word has length 409 [2020-07-19 21:48:57,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:48:57,056 INFO L479 AbstractCegarLoop]: Abstraction has 419 states and 419 transitions. [2020-07-19 21:48:57,056 INFO L480 AbstractCegarLoop]: Interpolant automaton has 64 states. [2020-07-19 21:48:57,057 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 419 transitions. [2020-07-19 21:48:57,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 417 [2020-07-19 21:48:57,060 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:48:57,060 INFO L422 BasicCegarLoop]: trace histogram [59, 59, 59, 58, 58, 58, 58, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:48:57,274 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57,58 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:48:57,275 INFO L427 AbstractCegarLoop]: === Iteration 59 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:48:57,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:48:57,275 INFO L82 PathProgramCache]: Analyzing trace with hash -1578068779, now seen corresponding path program 58 times [2020-07-19 21:48:57,275 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:48:57,275 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505458688] [2020-07-19 21:48:57,275 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:48:57,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:59,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:59,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:59,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:59,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:59,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:59,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:59,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:59,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:59,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:59,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:59,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:59,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:59,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:59,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:59,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:59,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:59,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:59,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:59,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:59,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:59,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:59,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:59,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:59,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:59,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:59,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:59,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:59,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:59,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:59,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:59,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:59,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:59,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:59,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:59,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:59,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:59,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:59,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:59,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:59,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:59,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:59,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:59,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:59,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:59,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:59,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:59,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:59,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:59,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:59,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:59,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:59,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:59,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:59,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:59,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:59,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:59,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:59,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:59,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:59,683 INFO L134 CoverageAnalysis]: Checked inductivity of 11803 backedges. 116 proven. 5075 refuted. 0 times theorem prover too weak. 6612 trivial. 0 not checked. [2020-07-19 21:48:59,684 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505458688] [2020-07-19 21:48:59,684 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1647146318] [2020-07-19 21:48:59,684 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 59 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 59 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:48:59,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:48:59,787 INFO L263 TraceCheckSpWp]: Trace formula consists of 718 conjuncts, 62 conjunts are in the unsatisfiable core [2020-07-19 21:48:59,792 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:48:59,807 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:48:59,978 INFO L134 CoverageAnalysis]: Checked inductivity of 11803 backedges. 116 proven. 5075 refuted. 0 times theorem prover too weak. 6612 trivial. 0 not checked. [2020-07-19 21:48:59,978 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:48:59,978 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [63, 63] total 65 [2020-07-19 21:48:59,978 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103153161] [2020-07-19 21:48:59,979 INFO L459 AbstractCegarLoop]: Interpolant automaton has 65 states [2020-07-19 21:48:59,979 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:48:59,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2020-07-19 21:48:59,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1840, Invalid=2320, Unknown=0, NotChecked=0, Total=4160 [2020-07-19 21:48:59,979 INFO L87 Difference]: Start difference. First operand 419 states and 419 transitions. Second operand 65 states. [2020-07-19 21:49:01,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:49:01,084 INFO L93 Difference]: Finished difference Result 429 states and 429 transitions. [2020-07-19 21:49:01,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2020-07-19 21:49:01,085 INFO L78 Accepts]: Start accepts. Automaton has 65 states. Word has length 416 [2020-07-19 21:49:01,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:49:01,086 INFO L225 Difference]: With dead ends: 429 [2020-07-19 21:49:01,087 INFO L226 Difference]: Without dead ends: 427 [2020-07-19 21:49:01,087 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 597 GetRequests, 533 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=1846, Invalid=2444, Unknown=0, NotChecked=0, Total=4290 [2020-07-19 21:49:01,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2020-07-19 21:49:01,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 426. [2020-07-19 21:49:01,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 426 states. [2020-07-19 21:49:01,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 426 transitions. [2020-07-19 21:49:01,097 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 426 transitions. Word has length 416 [2020-07-19 21:49:01,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:49:01,097 INFO L479 AbstractCegarLoop]: Abstraction has 426 states and 426 transitions. [2020-07-19 21:49:01,098 INFO L480 AbstractCegarLoop]: Interpolant automaton has 65 states. [2020-07-19 21:49:01,098 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 426 transitions. [2020-07-19 21:49:01,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 424 [2020-07-19 21:49:01,101 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:49:01,101 INFO L422 BasicCegarLoop]: trace histogram [60, 60, 60, 59, 59, 59, 59, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:49:01,317 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2020-07-19 21:49:01,318 INFO L427 AbstractCegarLoop]: === Iteration 60 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:49:01,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:49:01,319 INFO L82 PathProgramCache]: Analyzing trace with hash 1308456168, now seen corresponding path program 59 times [2020-07-19 21:49:01,319 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:49:01,319 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145060298] [2020-07-19 21:49:01,320 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:49:01,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:03,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:03,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:03,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:03,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:03,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:03,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:03,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:03,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:03,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:03,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:03,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:03,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:03,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:03,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:03,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:03,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:03,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:03,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:03,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:03,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:03,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:03,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:03,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:03,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:03,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:03,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:03,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:03,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:03,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:03,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:03,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:03,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:03,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:03,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:03,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:03,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:03,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:03,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:03,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:03,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:03,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:03,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:03,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:03,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:03,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:03,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:03,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:03,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:03,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:03,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:03,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:03,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:03,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:03,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:03,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:03,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:03,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:03,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:03,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:03,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:03,889 INFO L134 CoverageAnalysis]: Checked inductivity of 12213 backedges. 118 proven. 5251 refuted. 0 times theorem prover too weak. 6844 trivial. 0 not checked. [2020-07-19 21:49:03,889 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145060298] [2020-07-19 21:49:03,889 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [315547210] [2020-07-19 21:49:03,890 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 60 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 60 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:49:03,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:03,993 INFO L263 TraceCheckSpWp]: Trace formula consists of 730 conjuncts, 63 conjunts are in the unsatisfiable core [2020-07-19 21:49:03,998 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:49:04,025 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:49:04,201 INFO L134 CoverageAnalysis]: Checked inductivity of 12213 backedges. 118 proven. 5251 refuted. 0 times theorem prover too weak. 6844 trivial. 0 not checked. [2020-07-19 21:49:04,202 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:49:04,202 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [64, 64] total 66 [2020-07-19 21:49:04,202 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022255924] [2020-07-19 21:49:04,203 INFO L459 AbstractCegarLoop]: Interpolant automaton has 66 states [2020-07-19 21:49:04,203 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:49:04,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2020-07-19 21:49:04,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1901, Invalid=2389, Unknown=0, NotChecked=0, Total=4290 [2020-07-19 21:49:04,204 INFO L87 Difference]: Start difference. First operand 426 states and 426 transitions. Second operand 66 states. [2020-07-19 21:49:05,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:49:05,398 INFO L93 Difference]: Finished difference Result 436 states and 436 transitions. [2020-07-19 21:49:05,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-07-19 21:49:05,399 INFO L78 Accepts]: Start accepts. Automaton has 66 states. Word has length 423 [2020-07-19 21:49:05,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:49:05,401 INFO L225 Difference]: With dead ends: 436 [2020-07-19 21:49:05,402 INFO L226 Difference]: Without dead ends: 434 [2020-07-19 21:49:05,403 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 607 GetRequests, 542 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1907, Invalid=2515, Unknown=0, NotChecked=0, Total=4422 [2020-07-19 21:49:05,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2020-07-19 21:49:05,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 433. [2020-07-19 21:49:05,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 433 states. [2020-07-19 21:49:05,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 433 transitions. [2020-07-19 21:49:05,410 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 433 transitions. Word has length 423 [2020-07-19 21:49:05,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:49:05,411 INFO L479 AbstractCegarLoop]: Abstraction has 433 states and 433 transitions. [2020-07-19 21:49:05,411 INFO L480 AbstractCegarLoop]: Interpolant automaton has 66 states. [2020-07-19 21:49:05,411 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 433 transitions. [2020-07-19 21:49:05,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 431 [2020-07-19 21:49:05,414 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:49:05,414 INFO L422 BasicCegarLoop]: trace histogram [61, 61, 61, 60, 60, 60, 60, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:49:05,615 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2020-07-19 21:49:05,615 INFO L427 AbstractCegarLoop]: === Iteration 61 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:49:05,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:49:05,616 INFO L82 PathProgramCache]: Analyzing trace with hash -110433931, now seen corresponding path program 60 times [2020-07-19 21:49:05,616 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:49:05,617 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395467801] [2020-07-19 21:49:05,617 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:49:05,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:08,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:08,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:08,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:08,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:08,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:08,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:08,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:08,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:08,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:08,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:08,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:08,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:08,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:08,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:08,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:08,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:08,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:08,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:08,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:08,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:08,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:08,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:08,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:08,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:08,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:08,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:08,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:08,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:08,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:08,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:08,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:08,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:08,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:08,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:08,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:08,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:08,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:08,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:08,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:08,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:08,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:08,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:08,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:08,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:08,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:08,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:08,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:08,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:08,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:08,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:08,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:08,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:08,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:08,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:08,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:08,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:08,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:08,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:08,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:08,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:08,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:08,202 INFO L134 CoverageAnalysis]: Checked inductivity of 12630 backedges. 120 proven. 5430 refuted. 0 times theorem prover too weak. 7080 trivial. 0 not checked. [2020-07-19 21:49:08,202 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395467801] [2020-07-19 21:49:08,202 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [211612358] [2020-07-19 21:49:08,202 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 61 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 61 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:49:08,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:08,311 INFO L263 TraceCheckSpWp]: Trace formula consists of 742 conjuncts, 64 conjunts are in the unsatisfiable core [2020-07-19 21:49:08,315 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:49:08,335 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:49:08,523 INFO L134 CoverageAnalysis]: Checked inductivity of 12630 backedges. 120 proven. 5430 refuted. 0 times theorem prover too weak. 7080 trivial. 0 not checked. [2020-07-19 21:49:08,523 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:49:08,523 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65] total 67 [2020-07-19 21:49:08,523 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035995286] [2020-07-19 21:49:08,524 INFO L459 AbstractCegarLoop]: Interpolant automaton has 67 states [2020-07-19 21:49:08,524 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:49:08,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2020-07-19 21:49:08,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1963, Invalid=2459, Unknown=0, NotChecked=0, Total=4422 [2020-07-19 21:49:08,525 INFO L87 Difference]: Start difference. First operand 433 states and 433 transitions. Second operand 67 states. [2020-07-19 21:49:09,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:49:09,592 INFO L93 Difference]: Finished difference Result 443 states and 443 transitions. [2020-07-19 21:49:09,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2020-07-19 21:49:09,593 INFO L78 Accepts]: Start accepts. Automaton has 67 states. Word has length 430 [2020-07-19 21:49:09,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:49:09,596 INFO L225 Difference]: With dead ends: 443 [2020-07-19 21:49:09,596 INFO L226 Difference]: Without dead ends: 441 [2020-07-19 21:49:09,596 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 617 GetRequests, 551 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=1969, Invalid=2587, Unknown=0, NotChecked=0, Total=4556 [2020-07-19 21:49:09,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2020-07-19 21:49:09,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 440. [2020-07-19 21:49:09,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 440 states. [2020-07-19 21:49:09,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 440 transitions. [2020-07-19 21:49:09,607 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 440 transitions. Word has length 430 [2020-07-19 21:49:09,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:49:09,607 INFO L479 AbstractCegarLoop]: Abstraction has 440 states and 440 transitions. [2020-07-19 21:49:09,608 INFO L480 AbstractCegarLoop]: Interpolant automaton has 67 states. [2020-07-19 21:49:09,608 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 440 transitions. [2020-07-19 21:49:09,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 438 [2020-07-19 21:49:09,611 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:49:09,611 INFO L422 BasicCegarLoop]: trace histogram [62, 62, 62, 61, 61, 61, 61, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:49:09,824 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,61 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:49:09,825 INFO L427 AbstractCegarLoop]: === Iteration 62 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:49:09,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:49:09,826 INFO L82 PathProgramCache]: Analyzing trace with hash 1220062280, now seen corresponding path program 61 times [2020-07-19 21:49:09,826 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:49:09,826 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369355629] [2020-07-19 21:49:09,827 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:49:09,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:12,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:12,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:12,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:12,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:12,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:12,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:12,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:12,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:12,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:12,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:12,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:12,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:12,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:12,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:12,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:12,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:12,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:12,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:12,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:12,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:12,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:12,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:12,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:12,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:12,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:12,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:12,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:12,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:12,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:12,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:12,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:12,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:12,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:12,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:12,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:12,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:12,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:12,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:12,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:12,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:12,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:12,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:12,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:12,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:12,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:12,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:12,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:12,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:12,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:12,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:12,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:12,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:12,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:12,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:12,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:12,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:12,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:12,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:12,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:12,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:12,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:12,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:12,476 INFO L134 CoverageAnalysis]: Checked inductivity of 13054 backedges. 122 proven. 5612 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked. [2020-07-19 21:49:12,476 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369355629] [2020-07-19 21:49:12,476 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2071312533] [2020-07-19 21:49:12,476 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 62 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 62 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:49:12,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:12,579 INFO L263 TraceCheckSpWp]: Trace formula consists of 754 conjuncts, 65 conjunts are in the unsatisfiable core [2020-07-19 21:49:12,584 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:49:12,609 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:49:12,773 INFO L134 CoverageAnalysis]: Checked inductivity of 13054 backedges. 122 proven. 5612 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked. [2020-07-19 21:49:12,773 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:49:12,774 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [66, 66] total 68 [2020-07-19 21:49:12,774 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546369898] [2020-07-19 21:49:12,774 INFO L459 AbstractCegarLoop]: Interpolant automaton has 68 states [2020-07-19 21:49:12,774 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:49:12,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2020-07-19 21:49:12,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2026, Invalid=2530, Unknown=0, NotChecked=0, Total=4556 [2020-07-19 21:49:12,775 INFO L87 Difference]: Start difference. First operand 440 states and 440 transitions. Second operand 68 states. [2020-07-19 21:49:13,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:49:13,906 INFO L93 Difference]: Finished difference Result 450 states and 450 transitions. [2020-07-19 21:49:13,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2020-07-19 21:49:13,907 INFO L78 Accepts]: Start accepts. Automaton has 68 states. Word has length 437 [2020-07-19 21:49:13,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:49:13,909 INFO L225 Difference]: With dead ends: 450 [2020-07-19 21:49:13,910 INFO L226 Difference]: Without dead ends: 448 [2020-07-19 21:49:13,910 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 627 GetRequests, 560 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=2032, Invalid=2660, Unknown=0, NotChecked=0, Total=4692 [2020-07-19 21:49:13,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2020-07-19 21:49:13,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 447. [2020-07-19 21:49:13,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 447 states. [2020-07-19 21:49:13,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 447 transitions. [2020-07-19 21:49:13,921 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 447 transitions. Word has length 437 [2020-07-19 21:49:13,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:49:13,922 INFO L479 AbstractCegarLoop]: Abstraction has 447 states and 447 transitions. [2020-07-19 21:49:13,923 INFO L480 AbstractCegarLoop]: Interpolant automaton has 68 states. [2020-07-19 21:49:13,923 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 447 transitions. [2020-07-19 21:49:13,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 445 [2020-07-19 21:49:13,926 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:49:13,927 INFO L422 BasicCegarLoop]: trace histogram [63, 63, 63, 62, 62, 62, 62, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:49:14,140 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,62 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:49:14,141 INFO L427 AbstractCegarLoop]: === Iteration 63 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:49:14,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:49:14,142 INFO L82 PathProgramCache]: Analyzing trace with hash -614160875, now seen corresponding path program 62 times [2020-07-19 21:49:14,142 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:49:14,142 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746992161] [2020-07-19 21:49:14,143 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:49:14,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:16,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:16,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:16,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:16,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:16,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:16,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:16,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:16,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:16,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:16,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:16,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:16,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:16,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:16,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:16,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:16,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:16,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:16,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:16,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:16,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:16,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:16,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:16,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:16,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:16,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:16,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:16,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:16,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:16,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:16,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:16,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:16,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:16,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:16,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:16,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:16,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:16,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:16,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:16,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:16,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:16,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:16,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:16,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:16,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:16,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:16,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:16,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:16,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:16,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:16,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:16,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:16,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:16,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:16,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:16,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:16,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:16,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:16,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:16,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:16,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:16,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:16,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:16,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:17,014 INFO L134 CoverageAnalysis]: Checked inductivity of 13485 backedges. 124 proven. 5797 refuted. 0 times theorem prover too weak. 7564 trivial. 0 not checked. [2020-07-19 21:49:17,014 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746992161] [2020-07-19 21:49:17,014 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [486850082] [2020-07-19 21:49:17,014 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 63 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 63 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:49:17,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:17,121 INFO L263 TraceCheckSpWp]: Trace formula consists of 766 conjuncts, 66 conjunts are in the unsatisfiable core [2020-07-19 21:49:17,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:49:17,143 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:49:17,337 INFO L134 CoverageAnalysis]: Checked inductivity of 13485 backedges. 124 proven. 5797 refuted. 0 times theorem prover too weak. 7564 trivial. 0 not checked. [2020-07-19 21:49:17,337 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:49:17,338 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [67, 67] total 69 [2020-07-19 21:49:17,338 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749438894] [2020-07-19 21:49:17,338 INFO L459 AbstractCegarLoop]: Interpolant automaton has 69 states [2020-07-19 21:49:17,338 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:49:17,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2020-07-19 21:49:17,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2090, Invalid=2602, Unknown=0, NotChecked=0, Total=4692 [2020-07-19 21:49:17,339 INFO L87 Difference]: Start difference. First operand 447 states and 447 transitions. Second operand 69 states. [2020-07-19 21:49:18,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:49:18,461 INFO L93 Difference]: Finished difference Result 457 states and 457 transitions. [2020-07-19 21:49:18,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2020-07-19 21:49:18,462 INFO L78 Accepts]: Start accepts. Automaton has 69 states. Word has length 444 [2020-07-19 21:49:18,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:49:18,465 INFO L225 Difference]: With dead ends: 457 [2020-07-19 21:49:18,465 INFO L226 Difference]: Without dead ends: 455 [2020-07-19 21:49:18,465 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 637 GetRequests, 569 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=2096, Invalid=2734, Unknown=0, NotChecked=0, Total=4830 [2020-07-19 21:49:18,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2020-07-19 21:49:18,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 454. [2020-07-19 21:49:18,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 454 states. [2020-07-19 21:49:18,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 454 transitions. [2020-07-19 21:49:18,474 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 454 transitions. Word has length 444 [2020-07-19 21:49:18,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:49:18,475 INFO L479 AbstractCegarLoop]: Abstraction has 454 states and 454 transitions. [2020-07-19 21:49:18,475 INFO L480 AbstractCegarLoop]: Interpolant automaton has 69 states. [2020-07-19 21:49:18,475 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 454 transitions. [2020-07-19 21:49:18,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 452 [2020-07-19 21:49:18,478 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:49:18,478 INFO L422 BasicCegarLoop]: trace histogram [64, 64, 64, 63, 63, 63, 63, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:49:18,679 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,63 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:49:18,679 INFO L427 AbstractCegarLoop]: === Iteration 64 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:49:18,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:49:18,680 INFO L82 PathProgramCache]: Analyzing trace with hash 911178664, now seen corresponding path program 63 times [2020-07-19 21:49:18,681 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:49:18,681 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427421797] [2020-07-19 21:49:18,681 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:49:18,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:21,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:21,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:21,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:21,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:21,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:21,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:21,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:21,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:21,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:21,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:21,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:21,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:21,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:21,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:21,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:21,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:21,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:21,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:21,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:21,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:21,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:21,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:21,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:21,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:21,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:21,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:21,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:21,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:21,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:21,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:21,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:21,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:21,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:21,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:21,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:21,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:21,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:21,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:21,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:21,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:21,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:21,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:21,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:21,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:21,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:21,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:21,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:21,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:21,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:21,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:21,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:21,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:21,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:21,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:21,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:21,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:21,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:21,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:21,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:21,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:21,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:21,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:21,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:21,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:21,636 INFO L134 CoverageAnalysis]: Checked inductivity of 13923 backedges. 126 proven. 5985 refuted. 0 times theorem prover too weak. 7812 trivial. 0 not checked. [2020-07-19 21:49:21,636 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427421797] [2020-07-19 21:49:21,636 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1497553042] [2020-07-19 21:49:21,637 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 64 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 64 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:49:21,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:21,748 INFO L263 TraceCheckSpWp]: Trace formula consists of 778 conjuncts, 67 conjunts are in the unsatisfiable core [2020-07-19 21:49:21,752 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:49:21,774 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:49:21,946 INFO L134 CoverageAnalysis]: Checked inductivity of 13923 backedges. 126 proven. 5985 refuted. 0 times theorem prover too weak. 7812 trivial. 0 not checked. [2020-07-19 21:49:21,947 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:49:21,947 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [68, 68] total 70 [2020-07-19 21:49:21,947 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369969825] [2020-07-19 21:49:21,948 INFO L459 AbstractCegarLoop]: Interpolant automaton has 70 states [2020-07-19 21:49:21,948 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:49:21,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2020-07-19 21:49:21,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2155, Invalid=2675, Unknown=0, NotChecked=0, Total=4830 [2020-07-19 21:49:21,949 INFO L87 Difference]: Start difference. First operand 454 states and 454 transitions. Second operand 70 states. [2020-07-19 21:49:23,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:49:23,116 INFO L93 Difference]: Finished difference Result 464 states and 464 transitions. [2020-07-19 21:49:23,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2020-07-19 21:49:23,117 INFO L78 Accepts]: Start accepts. Automaton has 70 states. Word has length 451 [2020-07-19 21:49:23,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:49:23,121 INFO L225 Difference]: With dead ends: 464 [2020-07-19 21:49:23,121 INFO L226 Difference]: Without dead ends: 462 [2020-07-19 21:49:23,122 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 647 GetRequests, 578 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=2161, Invalid=2809, Unknown=0, NotChecked=0, Total=4970 [2020-07-19 21:49:23,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2020-07-19 21:49:23,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 461. [2020-07-19 21:49:23,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 461 states. [2020-07-19 21:49:23,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 461 transitions. [2020-07-19 21:49:23,132 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 461 transitions. Word has length 451 [2020-07-19 21:49:23,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:49:23,133 INFO L479 AbstractCegarLoop]: Abstraction has 461 states and 461 transitions. [2020-07-19 21:49:23,133 INFO L480 AbstractCegarLoop]: Interpolant automaton has 70 states. [2020-07-19 21:49:23,133 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 461 transitions. [2020-07-19 21:49:23,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 459 [2020-07-19 21:49:23,137 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:49:23,137 INFO L422 BasicCegarLoop]: trace histogram [65, 65, 65, 64, 64, 64, 64, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:49:23,350 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63,64 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:49:23,351 INFO L427 AbstractCegarLoop]: === Iteration 65 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:49:23,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:49:23,351 INFO L82 PathProgramCache]: Analyzing trace with hash -1597519179, now seen corresponding path program 64 times [2020-07-19 21:49:23,351 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:49:23,352 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310539777] [2020-07-19 21:49:23,352 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:49:23,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:26,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:26,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:26,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:26,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:26,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:26,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:26,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:26,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:26,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:26,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:26,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:26,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:26,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:26,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:26,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:26,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:26,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:26,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:26,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:26,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:26,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:26,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:26,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:26,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:26,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:26,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:26,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:26,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:26,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:26,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:26,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:26,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:26,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:26,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:26,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:26,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:26,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:26,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:26,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:26,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:26,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:26,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:26,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:26,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:26,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:26,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:26,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:26,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:26,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:26,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:26,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:26,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:26,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:26,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:26,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:26,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:26,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:26,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:26,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:26,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:26,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:26,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:26,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:26,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:26,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:26,503 INFO L134 CoverageAnalysis]: Checked inductivity of 14368 backedges. 128 proven. 6176 refuted. 0 times theorem prover too weak. 8064 trivial. 0 not checked. [2020-07-19 21:49:26,504 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310539777] [2020-07-19 21:49:26,504 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [198316710] [2020-07-19 21:49:26,504 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 65 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 65 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:49:26,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:26,622 INFO L263 TraceCheckSpWp]: Trace formula consists of 790 conjuncts, 68 conjunts are in the unsatisfiable core [2020-07-19 21:49:26,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:49:26,648 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:49:26,850 INFO L134 CoverageAnalysis]: Checked inductivity of 14368 backedges. 128 proven. 6176 refuted. 0 times theorem prover too weak. 8064 trivial. 0 not checked. [2020-07-19 21:49:26,851 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:49:26,851 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [69, 69] total 71 [2020-07-19 21:49:26,851 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970412754] [2020-07-19 21:49:26,852 INFO L459 AbstractCegarLoop]: Interpolant automaton has 71 states [2020-07-19 21:49:26,853 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:49:26,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2020-07-19 21:49:26,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2221, Invalid=2749, Unknown=0, NotChecked=0, Total=4970 [2020-07-19 21:49:26,854 INFO L87 Difference]: Start difference. First operand 461 states and 461 transitions. Second operand 71 states. [2020-07-19 21:49:28,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:49:28,144 INFO L93 Difference]: Finished difference Result 471 states and 471 transitions. [2020-07-19 21:49:28,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2020-07-19 21:49:28,145 INFO L78 Accepts]: Start accepts. Automaton has 71 states. Word has length 458 [2020-07-19 21:49:28,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:49:28,147 INFO L225 Difference]: With dead ends: 471 [2020-07-19 21:49:28,147 INFO L226 Difference]: Without dead ends: 469 [2020-07-19 21:49:28,148 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 657 GetRequests, 587 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=2227, Invalid=2885, Unknown=0, NotChecked=0, Total=5112 [2020-07-19 21:49:28,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2020-07-19 21:49:28,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 468. [2020-07-19 21:49:28,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 468 states. [2020-07-19 21:49:28,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 468 transitions. [2020-07-19 21:49:28,156 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 468 transitions. Word has length 458 [2020-07-19 21:49:28,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:49:28,156 INFO L479 AbstractCegarLoop]: Abstraction has 468 states and 468 transitions. [2020-07-19 21:49:28,157 INFO L480 AbstractCegarLoop]: Interpolant automaton has 71 states. [2020-07-19 21:49:28,157 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 468 transitions. [2020-07-19 21:49:28,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 466 [2020-07-19 21:49:28,160 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:49:28,160 INFO L422 BasicCegarLoop]: trace histogram [66, 66, 66, 65, 65, 65, 65, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:49:28,376 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64,65 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:49:28,376 INFO L427 AbstractCegarLoop]: === Iteration 66 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:49:28,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:49:28,376 INFO L82 PathProgramCache]: Analyzing trace with hash -1030233336, now seen corresponding path program 65 times [2020-07-19 21:49:28,376 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:49:28,377 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808978907] [2020-07-19 21:49:28,377 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:49:28,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:31,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:31,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:31,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:31,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:31,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:31,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:31,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:31,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:31,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:31,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:31,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:31,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:31,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:31,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:31,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:31,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:31,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:31,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:31,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:31,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:31,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:31,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:31,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:31,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:31,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:31,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:31,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:31,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:31,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:31,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:31,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:31,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:31,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:31,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:31,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:31,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:31,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:31,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:31,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:31,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:31,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:31,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:31,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:31,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:31,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:31,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:31,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:31,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:31,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:31,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:31,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:31,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:31,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:31,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:31,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:31,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:31,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:31,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:31,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:31,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:31,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:31,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:31,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:31,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:31,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:31,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:31,532 INFO L134 CoverageAnalysis]: Checked inductivity of 14820 backedges. 130 proven. 6370 refuted. 0 times theorem prover too weak. 8320 trivial. 0 not checked. [2020-07-19 21:49:31,532 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808978907] [2020-07-19 21:49:31,532 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1966379384] [2020-07-19 21:49:31,532 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 66 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 66 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:49:31,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:31,648 INFO L263 TraceCheckSpWp]: Trace formula consists of 802 conjuncts, 69 conjunts are in the unsatisfiable core [2020-07-19 21:49:31,652 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:49:31,675 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:49:31,872 INFO L134 CoverageAnalysis]: Checked inductivity of 14820 backedges. 130 proven. 6370 refuted. 0 times theorem prover too weak. 8320 trivial. 0 not checked. [2020-07-19 21:49:31,873 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:49:31,873 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [70, 70] total 72 [2020-07-19 21:49:31,873 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269351625] [2020-07-19 21:49:31,874 INFO L459 AbstractCegarLoop]: Interpolant automaton has 72 states [2020-07-19 21:49:31,874 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:49:31,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2020-07-19 21:49:31,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2288, Invalid=2824, Unknown=0, NotChecked=0, Total=5112 [2020-07-19 21:49:31,875 INFO L87 Difference]: Start difference. First operand 468 states and 468 transitions. Second operand 72 states. [2020-07-19 21:49:33,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:49:33,195 INFO L93 Difference]: Finished difference Result 478 states and 478 transitions. [2020-07-19 21:49:33,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2020-07-19 21:49:33,196 INFO L78 Accepts]: Start accepts. Automaton has 72 states. Word has length 465 [2020-07-19 21:49:33,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:49:33,199 INFO L225 Difference]: With dead ends: 478 [2020-07-19 21:49:33,199 INFO L226 Difference]: Without dead ends: 476 [2020-07-19 21:49:33,200 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 667 GetRequests, 596 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 261 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=2294, Invalid=2962, Unknown=0, NotChecked=0, Total=5256 [2020-07-19 21:49:33,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2020-07-19 21:49:33,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 475. [2020-07-19 21:49:33,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 475 states. [2020-07-19 21:49:33,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 475 transitions. [2020-07-19 21:49:33,209 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 475 transitions. Word has length 465 [2020-07-19 21:49:33,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:49:33,210 INFO L479 AbstractCegarLoop]: Abstraction has 475 states and 475 transitions. [2020-07-19 21:49:33,210 INFO L480 AbstractCegarLoop]: Interpolant automaton has 72 states. [2020-07-19 21:49:33,210 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 475 transitions. [2020-07-19 21:49:33,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 473 [2020-07-19 21:49:33,213 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:49:33,213 INFO L422 BasicCegarLoop]: trace histogram [67, 67, 67, 66, 66, 66, 66, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:49:33,426 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable65 [2020-07-19 21:49:33,427 INFO L427 AbstractCegarLoop]: === Iteration 67 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:49:33,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:49:33,428 INFO L82 PathProgramCache]: Analyzing trace with hash -1057073323, now seen corresponding path program 66 times [2020-07-19 21:49:33,428 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:49:33,429 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047402086] [2020-07-19 21:49:33,429 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:49:33,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:36,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:36,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:36,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:36,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:36,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:36,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:36,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:36,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:36,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:36,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:36,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:36,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:36,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:36,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:36,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:36,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:36,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:36,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:36,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:36,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:36,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:36,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:36,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:36,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:36,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:36,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:36,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:36,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:36,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:36,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:36,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:36,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:36,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:36,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:36,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:36,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:36,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:36,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:36,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:36,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:36,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:36,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:36,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:36,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:36,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:36,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:36,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:36,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:36,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:36,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:36,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:36,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:36,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:36,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:36,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:36,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:36,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:36,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:36,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:36,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:36,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:36,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:36,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:36,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:36,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:36,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:36,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:36,671 INFO L134 CoverageAnalysis]: Checked inductivity of 15279 backedges. 132 proven. 6567 refuted. 0 times theorem prover too weak. 8580 trivial. 0 not checked. [2020-07-19 21:49:36,672 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047402086] [2020-07-19 21:49:36,672 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1411245854] [2020-07-19 21:49:36,672 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 67 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 67 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:49:36,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:36,788 INFO L263 TraceCheckSpWp]: Trace formula consists of 814 conjuncts, 70 conjunts are in the unsatisfiable core [2020-07-19 21:49:36,792 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:49:36,811 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:49:37,025 INFO L134 CoverageAnalysis]: Checked inductivity of 15279 backedges. 132 proven. 6567 refuted. 0 times theorem prover too weak. 8580 trivial. 0 not checked. [2020-07-19 21:49:37,025 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:49:37,026 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [71, 71] total 73 [2020-07-19 21:49:37,026 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699704560] [2020-07-19 21:49:37,026 INFO L459 AbstractCegarLoop]: Interpolant automaton has 73 states [2020-07-19 21:49:37,027 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:49:37,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2020-07-19 21:49:37,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2356, Invalid=2900, Unknown=0, NotChecked=0, Total=5256 [2020-07-19 21:49:37,027 INFO L87 Difference]: Start difference. First operand 475 states and 475 transitions. Second operand 73 states. [2020-07-19 21:49:38,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:49:38,357 INFO L93 Difference]: Finished difference Result 485 states and 485 transitions. [2020-07-19 21:49:38,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2020-07-19 21:49:38,358 INFO L78 Accepts]: Start accepts. Automaton has 73 states. Word has length 472 [2020-07-19 21:49:38,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:49:38,360 INFO L225 Difference]: With dead ends: 485 [2020-07-19 21:49:38,360 INFO L226 Difference]: Without dead ends: 483 [2020-07-19 21:49:38,360 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 677 GetRequests, 605 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=2362, Invalid=3040, Unknown=0, NotChecked=0, Total=5402 [2020-07-19 21:49:38,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2020-07-19 21:49:38,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 482. [2020-07-19 21:49:38,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 482 states. [2020-07-19 21:49:38,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 482 transitions. [2020-07-19 21:49:38,368 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 482 transitions. Word has length 472 [2020-07-19 21:49:38,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:49:38,369 INFO L479 AbstractCegarLoop]: Abstraction has 482 states and 482 transitions. [2020-07-19 21:49:38,369 INFO L480 AbstractCegarLoop]: Interpolant automaton has 73 states. [2020-07-19 21:49:38,369 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 482 transitions. [2020-07-19 21:49:38,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 480 [2020-07-19 21:49:38,371 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:49:38,372 INFO L422 BasicCegarLoop]: trace histogram [68, 68, 68, 67, 67, 67, 67, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:49:38,574 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 67 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable66 [2020-07-19 21:49:38,574 INFO L427 AbstractCegarLoop]: === Iteration 68 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:49:38,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:49:38,575 INFO L82 PathProgramCache]: Analyzing trace with hash 719839848, now seen corresponding path program 67 times [2020-07-19 21:49:38,576 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:49:38,576 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458097532] [2020-07-19 21:49:38,576 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:49:38,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:41,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:41,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:41,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:41,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:41,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:41,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:41,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:41,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:41,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:41,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:41,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:41,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:41,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:41,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:41,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:41,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:41,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:41,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:41,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:41,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:41,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:41,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:41,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:41,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:41,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:41,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:41,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:41,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:41,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:41,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:41,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:41,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:41,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:41,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:41,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:41,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:41,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:41,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:41,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:41,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:41,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:41,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:41,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:41,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:41,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:41,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:41,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:41,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:41,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:41,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:41,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:41,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:41,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:41,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:41,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:41,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:41,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:41,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:41,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:41,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:41,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:41,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:41,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:41,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:41,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:41,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:41,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:41,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:42,044 INFO L134 CoverageAnalysis]: Checked inductivity of 15745 backedges. 134 proven. 6767 refuted. 0 times theorem prover too weak. 8844 trivial. 0 not checked. [2020-07-19 21:49:42,044 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458097532] [2020-07-19 21:49:42,045 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1850758278] [2020-07-19 21:49:42,045 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 68 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 68 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:49:42,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:42,162 INFO L263 TraceCheckSpWp]: Trace formula consists of 826 conjuncts, 71 conjunts are in the unsatisfiable core [2020-07-19 21:49:42,167 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:49:42,191 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:49:42,413 INFO L134 CoverageAnalysis]: Checked inductivity of 15745 backedges. 134 proven. 6767 refuted. 0 times theorem prover too weak. 8844 trivial. 0 not checked. [2020-07-19 21:49:42,413 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:49:42,414 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [72, 72] total 74 [2020-07-19 21:49:42,414 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814822701] [2020-07-19 21:49:42,414 INFO L459 AbstractCegarLoop]: Interpolant automaton has 74 states [2020-07-19 21:49:42,414 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:49:42,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants. [2020-07-19 21:49:42,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2425, Invalid=2977, Unknown=0, NotChecked=0, Total=5402 [2020-07-19 21:49:42,415 INFO L87 Difference]: Start difference. First operand 482 states and 482 transitions. Second operand 74 states. [2020-07-19 21:49:43,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:49:43,655 INFO L93 Difference]: Finished difference Result 492 states and 492 transitions. [2020-07-19 21:49:43,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2020-07-19 21:49:43,656 INFO L78 Accepts]: Start accepts. Automaton has 74 states. Word has length 479 [2020-07-19 21:49:43,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:49:43,659 INFO L225 Difference]: With dead ends: 492 [2020-07-19 21:49:43,659 INFO L226 Difference]: Without dead ends: 490 [2020-07-19 21:49:43,660 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 687 GetRequests, 614 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 269 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=2431, Invalid=3119, Unknown=0, NotChecked=0, Total=5550 [2020-07-19 21:49:43,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2020-07-19 21:49:43,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 489. [2020-07-19 21:49:43,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 489 states. [2020-07-19 21:49:43,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 489 transitions. [2020-07-19 21:49:43,668 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 489 transitions. Word has length 479 [2020-07-19 21:49:43,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:49:43,669 INFO L479 AbstractCegarLoop]: Abstraction has 489 states and 489 transitions. [2020-07-19 21:49:43,669 INFO L480 AbstractCegarLoop]: Interpolant automaton has 74 states. [2020-07-19 21:49:43,669 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 489 transitions. [2020-07-19 21:49:43,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 487 [2020-07-19 21:49:43,672 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:49:43,672 INFO L422 BasicCegarLoop]: trace histogram [69, 69, 69, 68, 68, 68, 68, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:49:43,877 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67,68 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:49:43,878 INFO L427 AbstractCegarLoop]: === Iteration 69 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:49:43,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:49:43,879 INFO L82 PathProgramCache]: Analyzing trace with hash 1911704565, now seen corresponding path program 68 times [2020-07-19 21:49:43,879 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:49:43,880 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927919843] [2020-07-19 21:49:43,880 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:49:43,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:47,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:47,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:47,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:47,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:47,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:47,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:47,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:47,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:47,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:47,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:47,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:47,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:47,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:47,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:47,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:47,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:47,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:47,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:47,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:47,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:47,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:47,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:47,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:47,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:47,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:47,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:47,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:47,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:47,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:47,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:47,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:47,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:47,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:47,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:47,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:47,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:47,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:47,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:47,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:47,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:47,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:47,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:47,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:47,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:47,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:47,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:47,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:47,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:47,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:47,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:47,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:47,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:47,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:47,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:47,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:47,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:47,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:47,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:47,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:47,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:47,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:47,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:47,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:47,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:47,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:47,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:47,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:47,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:47,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:47,421 INFO L134 CoverageAnalysis]: Checked inductivity of 16218 backedges. 136 proven. 6970 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2020-07-19 21:49:47,422 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927919843] [2020-07-19 21:49:47,422 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [506014205] [2020-07-19 21:49:47,422 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 69 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 69 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:49:47,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:47,546 INFO L263 TraceCheckSpWp]: Trace formula consists of 838 conjuncts, 72 conjunts are in the unsatisfiable core [2020-07-19 21:49:47,551 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:49:47,571 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:49:47,778 INFO L134 CoverageAnalysis]: Checked inductivity of 16218 backedges. 136 proven. 6970 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2020-07-19 21:49:47,778 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:49:47,778 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [73, 73] total 75 [2020-07-19 21:49:47,779 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566345475] [2020-07-19 21:49:47,779 INFO L459 AbstractCegarLoop]: Interpolant automaton has 75 states [2020-07-19 21:49:47,779 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:49:47,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2020-07-19 21:49:47,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2495, Invalid=3055, Unknown=0, NotChecked=0, Total=5550 [2020-07-19 21:49:47,780 INFO L87 Difference]: Start difference. First operand 489 states and 489 transitions. Second operand 75 states. [2020-07-19 21:49:49,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:49:49,073 INFO L93 Difference]: Finished difference Result 499 states and 499 transitions. [2020-07-19 21:49:49,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2020-07-19 21:49:49,074 INFO L78 Accepts]: Start accepts. Automaton has 75 states. Word has length 486 [2020-07-19 21:49:49,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:49:49,077 INFO L225 Difference]: With dead ends: 499 [2020-07-19 21:49:49,077 INFO L226 Difference]: Without dead ends: 497 [2020-07-19 21:49:49,078 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 697 GetRequests, 623 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 273 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=2501, Invalid=3199, Unknown=0, NotChecked=0, Total=5700 [2020-07-19 21:49:49,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2020-07-19 21:49:49,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 496. [2020-07-19 21:49:49,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 496 states. [2020-07-19 21:49:49,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 496 transitions. [2020-07-19 21:49:49,086 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 496 transitions. Word has length 486 [2020-07-19 21:49:49,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:49:49,087 INFO L479 AbstractCegarLoop]: Abstraction has 496 states and 496 transitions. [2020-07-19 21:49:49,087 INFO L480 AbstractCegarLoop]: Interpolant automaton has 75 states. [2020-07-19 21:49:49,087 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 496 transitions. [2020-07-19 21:49:49,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 494 [2020-07-19 21:49:49,089 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:49:49,090 INFO L422 BasicCegarLoop]: trace histogram [70, 70, 70, 69, 69, 69, 69, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:49:49,290 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 69 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable68 [2020-07-19 21:49:49,291 INFO L427 AbstractCegarLoop]: === Iteration 70 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:49:49,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:49:49,291 INFO L82 PathProgramCache]: Analyzing trace with hash -1642759736, now seen corresponding path program 69 times [2020-07-19 21:49:49,292 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:49:49,292 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730404046] [2020-07-19 21:49:49,292 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:49:49,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:52,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:52,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:52,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:52,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:52,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:52,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:52,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:52,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:52,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:52,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:52,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:52,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:52,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:52,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:52,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:52,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:52,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:52,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:52,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:52,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:52,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:52,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:52,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:52,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:52,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:52,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:52,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:52,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:52,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:52,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:52,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:52,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:52,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:52,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:52,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:52,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:52,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:52,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:52,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:52,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:52,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:52,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:52,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:52,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:52,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:52,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:52,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:52,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:52,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:52,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:52,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:52,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:52,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:52,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:52,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:53,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:53,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:53,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:53,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:53,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:53,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:53,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:53,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:53,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:53,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:53,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:53,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:53,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:53,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:53,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:53,121 INFO L134 CoverageAnalysis]: Checked inductivity of 16698 backedges. 138 proven. 7176 refuted. 0 times theorem prover too weak. 9384 trivial. 0 not checked. [2020-07-19 21:49:53,122 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730404046] [2020-07-19 21:49:53,122 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1634762563] [2020-07-19 21:49:53,122 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 70 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 70 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:49:53,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:53,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 850 conjuncts, 73 conjunts are in the unsatisfiable core [2020-07-19 21:49:53,249 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:49:53,271 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:49:53,562 INFO L134 CoverageAnalysis]: Checked inductivity of 16698 backedges. 138 proven. 7176 refuted. 0 times theorem prover too weak. 9384 trivial. 0 not checked. [2020-07-19 21:49:53,562 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:49:53,562 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [74, 74] total 76 [2020-07-19 21:49:53,563 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683992551] [2020-07-19 21:49:53,564 INFO L459 AbstractCegarLoop]: Interpolant automaton has 76 states [2020-07-19 21:49:53,564 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:49:53,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2020-07-19 21:49:53,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2566, Invalid=3134, Unknown=0, NotChecked=0, Total=5700 [2020-07-19 21:49:53,565 INFO L87 Difference]: Start difference. First operand 496 states and 496 transitions. Second operand 76 states. [2020-07-19 21:49:54,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:49:54,861 INFO L93 Difference]: Finished difference Result 506 states and 506 transitions. [2020-07-19 21:49:54,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2020-07-19 21:49:54,862 INFO L78 Accepts]: Start accepts. Automaton has 76 states. Word has length 493 [2020-07-19 21:49:54,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:49:54,865 INFO L225 Difference]: With dead ends: 506 [2020-07-19 21:49:54,865 INFO L226 Difference]: Without dead ends: 504 [2020-07-19 21:49:54,866 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 707 GetRequests, 632 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 277 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=2572, Invalid=3280, Unknown=0, NotChecked=0, Total=5852 [2020-07-19 21:49:54,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2020-07-19 21:49:54,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 503. [2020-07-19 21:49:54,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 503 states. [2020-07-19 21:49:54,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 503 states and 503 transitions. [2020-07-19 21:49:54,874 INFO L78 Accepts]: Start accepts. Automaton has 503 states and 503 transitions. Word has length 493 [2020-07-19 21:49:54,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:49:54,875 INFO L479 AbstractCegarLoop]: Abstraction has 503 states and 503 transitions. [2020-07-19 21:49:54,875 INFO L480 AbstractCegarLoop]: Interpolant automaton has 76 states. [2020-07-19 21:49:54,875 INFO L276 IsEmpty]: Start isEmpty. Operand 503 states and 503 transitions. [2020-07-19 21:49:54,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 501 [2020-07-19 21:49:54,877 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:49:54,878 INFO L422 BasicCegarLoop]: trace histogram [71, 71, 71, 70, 70, 70, 70, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:49:55,078 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 70 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable69 [2020-07-19 21:49:55,079 INFO L427 AbstractCegarLoop]: === Iteration 71 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:49:55,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:49:55,080 INFO L82 PathProgramCache]: Analyzing trace with hash 1208854677, now seen corresponding path program 70 times [2020-07-19 21:49:55,081 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:49:55,081 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29627594] [2020-07-19 21:49:55,081 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:49:55,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:58,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:58,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:58,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:58,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:58,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:58,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:58,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:58,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:58,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:58,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:58,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:58,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:58,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:58,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:58,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:58,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:58,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:58,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:58,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:58,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:58,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:58,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:58,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:58,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:58,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:58,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:58,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:58,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:58,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:58,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:58,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:58,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:58,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:58,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:58,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:58,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:58,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:58,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:58,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:58,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:58,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:58,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:58,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:58,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:58,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:58,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:58,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:58,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:58,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:58,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:58,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:58,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:58,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:58,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:58,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:58,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:58,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:58,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:58,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:58,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:58,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:58,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:58,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:58,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:58,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:58,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:58,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:58,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:58,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:58,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:58,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:58,893 INFO L134 CoverageAnalysis]: Checked inductivity of 17185 backedges. 140 proven. 7385 refuted. 0 times theorem prover too weak. 9660 trivial. 0 not checked. [2020-07-19 21:49:58,894 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29627594] [2020-07-19 21:49:58,894 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [647538863] [2020-07-19 21:49:58,894 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 71 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 71 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:49:59,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:49:59,016 INFO L263 TraceCheckSpWp]: Trace formula consists of 862 conjuncts, 74 conjunts are in the unsatisfiable core [2020-07-19 21:49:59,021 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:49:59,048 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:49:59,256 INFO L134 CoverageAnalysis]: Checked inductivity of 17185 backedges. 140 proven. 7385 refuted. 0 times theorem prover too weak. 9660 trivial. 0 not checked. [2020-07-19 21:49:59,257 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:49:59,257 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [75, 75] total 77 [2020-07-19 21:49:59,257 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761610490] [2020-07-19 21:49:59,258 INFO L459 AbstractCegarLoop]: Interpolant automaton has 77 states [2020-07-19 21:49:59,258 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:49:59,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2020-07-19 21:49:59,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2638, Invalid=3214, Unknown=0, NotChecked=0, Total=5852 [2020-07-19 21:49:59,258 INFO L87 Difference]: Start difference. First operand 503 states and 503 transitions. Second operand 77 states. [2020-07-19 21:50:00,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:50:00,607 INFO L93 Difference]: Finished difference Result 513 states and 513 transitions. [2020-07-19 21:50:00,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2020-07-19 21:50:00,608 INFO L78 Accepts]: Start accepts. Automaton has 77 states. Word has length 500 [2020-07-19 21:50:00,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:50:00,611 INFO L225 Difference]: With dead ends: 513 [2020-07-19 21:50:00,611 INFO L226 Difference]: Without dead ends: 511 [2020-07-19 21:50:00,612 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 717 GetRequests, 641 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 281 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=2644, Invalid=3362, Unknown=0, NotChecked=0, Total=6006 [2020-07-19 21:50:00,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2020-07-19 21:50:00,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 510. [2020-07-19 21:50:00,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 510 states. [2020-07-19 21:50:00,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 510 states and 510 transitions. [2020-07-19 21:50:00,622 INFO L78 Accepts]: Start accepts. Automaton has 510 states and 510 transitions. Word has length 500 [2020-07-19 21:50:00,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:50:00,622 INFO L479 AbstractCegarLoop]: Abstraction has 510 states and 510 transitions. [2020-07-19 21:50:00,622 INFO L480 AbstractCegarLoop]: Interpolant automaton has 77 states. [2020-07-19 21:50:00,622 INFO L276 IsEmpty]: Start isEmpty. Operand 510 states and 510 transitions. [2020-07-19 21:50:00,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 508 [2020-07-19 21:50:00,625 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:50:00,625 INFO L422 BasicCegarLoop]: trace histogram [72, 72, 72, 71, 71, 71, 71, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:50:00,840 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 71 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable70 [2020-07-19 21:50:00,841 INFO L427 AbstractCegarLoop]: === Iteration 72 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:50:00,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:50:00,843 INFO L82 PathProgramCache]: Analyzing trace with hash -1669945048, now seen corresponding path program 71 times [2020-07-19 21:50:00,843 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:50:00,844 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207375286] [2020-07-19 21:50:00,844 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:50:00,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:04,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:04,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:04,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:04,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:04,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:04,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:04,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:04,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:04,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:04,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:04,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:04,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:04,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:04,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:04,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:04,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:04,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:04,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:04,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:04,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:04,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:04,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:04,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:04,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:04,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:04,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:04,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:04,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:04,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:04,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:04,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:04,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:04,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:04,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:04,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:04,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:04,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:04,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:04,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:04,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:04,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:04,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:04,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:04,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:04,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:04,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:04,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:04,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:04,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:04,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:04,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:04,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:04,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:04,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:04,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:04,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:04,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:04,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:04,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:04,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:04,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:04,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:04,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:04,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:04,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:04,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:04,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:04,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:04,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:04,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:04,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:04,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:04,846 INFO L134 CoverageAnalysis]: Checked inductivity of 17679 backedges. 142 proven. 7597 refuted. 0 times theorem prover too weak. 9940 trivial. 0 not checked. [2020-07-19 21:50:04,846 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207375286] [2020-07-19 21:50:04,846 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1126071734] [2020-07-19 21:50:04,847 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 72 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 72 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:50:04,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:04,985 INFO L263 TraceCheckSpWp]: Trace formula consists of 874 conjuncts, 75 conjunts are in the unsatisfiable core [2020-07-19 21:50:04,991 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:50:05,015 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:50:05,240 INFO L134 CoverageAnalysis]: Checked inductivity of 17679 backedges. 142 proven. 7597 refuted. 0 times theorem prover too weak. 9940 trivial. 0 not checked. [2020-07-19 21:50:05,241 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:50:05,241 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [76, 76] total 78 [2020-07-19 21:50:05,241 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214765885] [2020-07-19 21:50:05,242 INFO L459 AbstractCegarLoop]: Interpolant automaton has 78 states [2020-07-19 21:50:05,242 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:50:05,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2020-07-19 21:50:05,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2711, Invalid=3295, Unknown=0, NotChecked=0, Total=6006 [2020-07-19 21:50:05,243 INFO L87 Difference]: Start difference. First operand 510 states and 510 transitions. Second operand 78 states. [2020-07-19 21:50:06,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:50:06,780 INFO L93 Difference]: Finished difference Result 520 states and 520 transitions. [2020-07-19 21:50:06,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2020-07-19 21:50:06,781 INFO L78 Accepts]: Start accepts. Automaton has 78 states. Word has length 507 [2020-07-19 21:50:06,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:50:06,783 INFO L225 Difference]: With dead ends: 520 [2020-07-19 21:50:06,783 INFO L226 Difference]: Without dead ends: 518 [2020-07-19 21:50:06,784 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 727 GetRequests, 650 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=2717, Invalid=3445, Unknown=0, NotChecked=0, Total=6162 [2020-07-19 21:50:06,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2020-07-19 21:50:06,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 517. [2020-07-19 21:50:06,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 517 states. [2020-07-19 21:50:06,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 517 transitions. [2020-07-19 21:50:06,793 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 517 transitions. Word has length 507 [2020-07-19 21:50:06,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:50:06,794 INFO L479 AbstractCegarLoop]: Abstraction has 517 states and 517 transitions. [2020-07-19 21:50:06,794 INFO L480 AbstractCegarLoop]: Interpolant automaton has 78 states. [2020-07-19 21:50:06,794 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 517 transitions. [2020-07-19 21:50:06,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 515 [2020-07-19 21:50:06,799 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:50:06,799 INFO L422 BasicCegarLoop]: trace histogram [73, 73, 73, 72, 72, 72, 72, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:50:07,014 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71,72 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:50:07,015 INFO L427 AbstractCegarLoop]: === Iteration 73 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:50:07,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:50:07,016 INFO L82 PathProgramCache]: Analyzing trace with hash -700814027, now seen corresponding path program 72 times [2020-07-19 21:50:07,017 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:50:07,017 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195824452] [2020-07-19 21:50:07,017 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:50:07,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:11,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:11,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:11,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:11,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:11,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:11,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:11,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:11,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:11,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:11,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:11,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:11,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:11,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:11,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:11,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:11,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:11,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:11,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:11,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:11,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:11,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:11,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:11,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:11,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:11,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:11,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:11,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:11,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:11,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:11,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:11,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:11,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:11,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:11,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:11,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:11,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:11,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:11,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:11,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:11,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:11,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:11,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:11,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:11,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:11,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:11,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:11,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:11,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:11,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:11,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:11,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:11,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:11,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:11,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:11,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:11,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:11,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:11,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:11,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:11,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:11,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:11,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:11,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:11,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:11,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:11,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:11,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:11,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:11,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:11,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:11,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:11,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:11,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:11,229 INFO L134 CoverageAnalysis]: Checked inductivity of 18180 backedges. 144 proven. 7812 refuted. 0 times theorem prover too weak. 10224 trivial. 0 not checked. [2020-07-19 21:50:11,229 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195824452] [2020-07-19 21:50:11,229 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1768706643] [2020-07-19 21:50:11,229 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 73 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 73 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:50:11,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:11,358 INFO L263 TraceCheckSpWp]: Trace formula consists of 886 conjuncts, 76 conjunts are in the unsatisfiable core [2020-07-19 21:50:11,363 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:50:11,381 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:50:11,640 INFO L134 CoverageAnalysis]: Checked inductivity of 18180 backedges. 144 proven. 7812 refuted. 0 times theorem prover too weak. 10224 trivial. 0 not checked. [2020-07-19 21:50:11,640 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:50:11,640 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [77, 77] total 79 [2020-07-19 21:50:11,641 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101623062] [2020-07-19 21:50:11,641 INFO L459 AbstractCegarLoop]: Interpolant automaton has 79 states [2020-07-19 21:50:11,641 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:50:11,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 79 interpolants. [2020-07-19 21:50:11,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2785, Invalid=3377, Unknown=0, NotChecked=0, Total=6162 [2020-07-19 21:50:11,642 INFO L87 Difference]: Start difference. First operand 517 states and 517 transitions. Second operand 79 states. [2020-07-19 21:50:13,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:50:13,069 INFO L93 Difference]: Finished difference Result 527 states and 527 transitions. [2020-07-19 21:50:13,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2020-07-19 21:50:13,070 INFO L78 Accepts]: Start accepts. Automaton has 79 states. Word has length 514 [2020-07-19 21:50:13,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:50:13,073 INFO L225 Difference]: With dead ends: 527 [2020-07-19 21:50:13,074 INFO L226 Difference]: Without dead ends: 525 [2020-07-19 21:50:13,074 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 737 GetRequests, 659 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=2791, Invalid=3529, Unknown=0, NotChecked=0, Total=6320 [2020-07-19 21:50:13,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2020-07-19 21:50:13,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 524. [2020-07-19 21:50:13,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 524 states. [2020-07-19 21:50:13,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 524 transitions. [2020-07-19 21:50:13,083 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 524 transitions. Word has length 514 [2020-07-19 21:50:13,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:50:13,083 INFO L479 AbstractCegarLoop]: Abstraction has 524 states and 524 transitions. [2020-07-19 21:50:13,083 INFO L480 AbstractCegarLoop]: Interpolant automaton has 79 states. [2020-07-19 21:50:13,083 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 524 transitions. [2020-07-19 21:50:13,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 522 [2020-07-19 21:50:13,086 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:50:13,086 INFO L422 BasicCegarLoop]: trace histogram [74, 74, 74, 73, 73, 73, 73, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:50:13,287 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72,73 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:50:13,287 INFO L427 AbstractCegarLoop]: === Iteration 74 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:50:13,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:50:13,288 INFO L82 PathProgramCache]: Analyzing trace with hash 1474392200, now seen corresponding path program 73 times [2020-07-19 21:50:13,288 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:50:13,289 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385523544] [2020-07-19 21:50:13,289 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:50:13,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:17,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:17,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:17,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:17,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:17,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:17,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:17,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:17,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:17,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:17,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:17,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:17,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:17,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:17,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:17,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:17,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:17,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:17,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:17,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:17,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:17,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:17,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:17,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:17,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:17,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:17,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:17,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:17,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:17,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:17,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:17,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:17,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:17,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:17,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:17,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:17,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:17,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:17,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:17,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:17,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:17,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:17,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:17,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:17,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:17,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:17,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:17,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:17,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:17,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:17,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:17,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:17,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:17,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:17,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:17,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:17,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:17,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:17,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:17,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:17,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:17,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:17,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:17,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:17,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:17,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:17,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:17,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:17,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:17,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:17,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:17,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:17,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:17,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:17,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:17,720 INFO L134 CoverageAnalysis]: Checked inductivity of 18688 backedges. 146 proven. 8030 refuted. 0 times theorem prover too weak. 10512 trivial. 0 not checked. [2020-07-19 21:50:17,720 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385523544] [2020-07-19 21:50:17,720 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1471700031] [2020-07-19 21:50:17,720 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 74 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 74 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:50:17,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:17,849 INFO L263 TraceCheckSpWp]: Trace formula consists of 898 conjuncts, 77 conjunts are in the unsatisfiable core [2020-07-19 21:50:17,854 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:50:17,877 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:50:18,123 INFO L134 CoverageAnalysis]: Checked inductivity of 18688 backedges. 146 proven. 8030 refuted. 0 times theorem prover too weak. 10512 trivial. 0 not checked. [2020-07-19 21:50:18,124 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:50:18,124 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [78, 78] total 80 [2020-07-19 21:50:18,124 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317542992] [2020-07-19 21:50:18,125 INFO L459 AbstractCegarLoop]: Interpolant automaton has 80 states [2020-07-19 21:50:18,125 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:50:18,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 80 interpolants. [2020-07-19 21:50:18,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2860, Invalid=3460, Unknown=0, NotChecked=0, Total=6320 [2020-07-19 21:50:18,125 INFO L87 Difference]: Start difference. First operand 524 states and 524 transitions. Second operand 80 states. [2020-07-19 21:50:19,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:50:19,651 INFO L93 Difference]: Finished difference Result 534 states and 534 transitions. [2020-07-19 21:50:19,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2020-07-19 21:50:19,652 INFO L78 Accepts]: Start accepts. Automaton has 80 states. Word has length 521 [2020-07-19 21:50:19,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:50:19,655 INFO L225 Difference]: With dead ends: 534 [2020-07-19 21:50:19,655 INFO L226 Difference]: Without dead ends: 532 [2020-07-19 21:50:19,656 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 747 GetRequests, 668 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 293 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=2866, Invalid=3614, Unknown=0, NotChecked=0, Total=6480 [2020-07-19 21:50:19,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2020-07-19 21:50:19,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 531. [2020-07-19 21:50:19,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 531 states. [2020-07-19 21:50:19,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 531 transitions. [2020-07-19 21:50:19,664 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 531 transitions. Word has length 521 [2020-07-19 21:50:19,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:50:19,665 INFO L479 AbstractCegarLoop]: Abstraction has 531 states and 531 transitions. [2020-07-19 21:50:19,665 INFO L480 AbstractCegarLoop]: Interpolant automaton has 80 states. [2020-07-19 21:50:19,665 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 531 transitions. [2020-07-19 21:50:19,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 529 [2020-07-19 21:50:19,667 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:50:19,668 INFO L422 BasicCegarLoop]: trace histogram [75, 75, 75, 74, 74, 74, 74, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:50:19,868 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73,74 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:50:19,869 INFO L427 AbstractCegarLoop]: === Iteration 75 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:50:19,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:50:19,870 INFO L82 PathProgramCache]: Analyzing trace with hash 1306696149, now seen corresponding path program 74 times [2020-07-19 21:50:19,870 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:50:19,870 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635643679] [2020-07-19 21:50:19,870 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:50:19,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:24,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:24,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:24,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:24,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:24,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:24,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:24,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:24,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:24,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:24,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:24,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:24,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:24,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:24,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:24,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:24,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:24,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:24,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:24,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:24,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:24,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:24,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:24,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:24,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:24,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:24,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:24,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:24,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:24,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:24,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:24,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:24,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:24,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:24,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:24,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:24,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:24,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:24,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:24,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:24,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:24,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:24,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:24,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:24,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:24,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:24,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:24,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:24,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:24,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:24,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:24,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:24,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:24,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:24,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:24,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:24,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:24,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:24,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:24,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:24,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:24,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:24,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:24,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:24,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:24,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:24,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:24,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:24,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:24,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:24,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:24,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:24,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:24,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:24,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:24,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:24,514 INFO L134 CoverageAnalysis]: Checked inductivity of 19203 backedges. 148 proven. 8251 refuted. 0 times theorem prover too weak. 10804 trivial. 0 not checked. [2020-07-19 21:50:24,514 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635643679] [2020-07-19 21:50:24,515 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [391542821] [2020-07-19 21:50:24,515 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 75 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 75 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:50:24,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:24,642 INFO L263 TraceCheckSpWp]: Trace formula consists of 910 conjuncts, 78 conjunts are in the unsatisfiable core [2020-07-19 21:50:24,647 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:50:24,670 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:50:24,912 INFO L134 CoverageAnalysis]: Checked inductivity of 19203 backedges. 148 proven. 8251 refuted. 0 times theorem prover too weak. 10804 trivial. 0 not checked. [2020-07-19 21:50:24,912 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:50:24,913 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [79, 79] total 81 [2020-07-19 21:50:24,913 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770046037] [2020-07-19 21:50:24,913 INFO L459 AbstractCegarLoop]: Interpolant automaton has 81 states [2020-07-19 21:50:24,914 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:50:24,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 81 interpolants. [2020-07-19 21:50:24,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2936, Invalid=3544, Unknown=0, NotChecked=0, Total=6480 [2020-07-19 21:50:24,914 INFO L87 Difference]: Start difference. First operand 531 states and 531 transitions. Second operand 81 states. [2020-07-19 21:50:26,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:50:26,372 INFO L93 Difference]: Finished difference Result 541 states and 541 transitions. [2020-07-19 21:50:26,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2020-07-19 21:50:26,373 INFO L78 Accepts]: Start accepts. Automaton has 81 states. Word has length 528 [2020-07-19 21:50:26,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:50:26,376 INFO L225 Difference]: With dead ends: 541 [2020-07-19 21:50:26,376 INFO L226 Difference]: Without dead ends: 539 [2020-07-19 21:50:26,377 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 757 GetRequests, 677 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 297 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=2942, Invalid=3700, Unknown=0, NotChecked=0, Total=6642 [2020-07-19 21:50:26,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2020-07-19 21:50:26,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 538. [2020-07-19 21:50:26,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2020-07-19 21:50:26,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 538 transitions. [2020-07-19 21:50:26,385 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 538 transitions. Word has length 528 [2020-07-19 21:50:26,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:50:26,386 INFO L479 AbstractCegarLoop]: Abstraction has 538 states and 538 transitions. [2020-07-19 21:50:26,386 INFO L480 AbstractCegarLoop]: Interpolant automaton has 81 states. [2020-07-19 21:50:26,386 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 538 transitions. [2020-07-19 21:50:26,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 536 [2020-07-19 21:50:26,389 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:50:26,389 INFO L422 BasicCegarLoop]: trace histogram [76, 76, 76, 75, 75, 75, 75, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:50:26,590 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 75 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable74 [2020-07-19 21:50:26,590 INFO L427 AbstractCegarLoop]: === Iteration 76 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:50:26,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:50:26,591 INFO L82 PathProgramCache]: Analyzing trace with hash 330026984, now seen corresponding path program 75 times [2020-07-19 21:50:26,591 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:50:26,592 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978379736] [2020-07-19 21:50:26,592 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:50:26,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:30,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:30,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:30,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:30,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:30,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:30,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:30,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:30,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:30,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:30,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:30,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:30,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:30,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:30,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:30,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:30,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:30,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:30,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:30,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:30,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:30,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:30,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:30,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:30,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:30,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:30,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:30,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:30,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:30,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:30,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:30,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:30,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:30,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:30,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:30,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:30,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:30,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:30,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:30,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:30,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:30,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:30,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:30,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:30,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:30,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:30,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:30,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:30,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:30,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:30,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:30,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:30,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:30,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:30,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:30,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:30,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:30,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:30,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:30,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:30,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:30,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:30,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:30,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:30,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:30,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:30,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:30,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:30,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:30,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:30,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:30,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:30,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:30,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:30,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:30,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:30,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:31,020 INFO L134 CoverageAnalysis]: Checked inductivity of 19725 backedges. 150 proven. 8475 refuted. 0 times theorem prover too weak. 11100 trivial. 0 not checked. [2020-07-19 21:50:31,020 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978379736] [2020-07-19 21:50:31,020 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1601216426] [2020-07-19 21:50:31,021 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 76 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 76 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:50:31,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:31,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 922 conjuncts, 79 conjunts are in the unsatisfiable core [2020-07-19 21:50:31,157 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:50:31,181 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:50:31,464 INFO L134 CoverageAnalysis]: Checked inductivity of 19725 backedges. 150 proven. 8475 refuted. 0 times theorem prover too weak. 11100 trivial. 0 not checked. [2020-07-19 21:50:31,464 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:50:31,465 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [80, 80] total 82 [2020-07-19 21:50:31,465 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939791111] [2020-07-19 21:50:31,466 INFO L459 AbstractCegarLoop]: Interpolant automaton has 82 states [2020-07-19 21:50:31,466 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:50:31,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 82 interpolants. [2020-07-19 21:50:31,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3013, Invalid=3629, Unknown=0, NotChecked=0, Total=6642 [2020-07-19 21:50:31,467 INFO L87 Difference]: Start difference. First operand 538 states and 538 transitions. Second operand 82 states. [2020-07-19 21:50:33,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:50:33,018 INFO L93 Difference]: Finished difference Result 548 states and 548 transitions. [2020-07-19 21:50:33,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2020-07-19 21:50:33,020 INFO L78 Accepts]: Start accepts. Automaton has 82 states. Word has length 535 [2020-07-19 21:50:33,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:50:33,022 INFO L225 Difference]: With dead ends: 548 [2020-07-19 21:50:33,022 INFO L226 Difference]: Without dead ends: 546 [2020-07-19 21:50:33,023 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 767 GetRequests, 686 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=3019, Invalid=3787, Unknown=0, NotChecked=0, Total=6806 [2020-07-19 21:50:33,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 546 states. [2020-07-19 21:50:33,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 546 to 545. [2020-07-19 21:50:33,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 545 states. [2020-07-19 21:50:33,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 545 transitions. [2020-07-19 21:50:33,032 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 545 transitions. Word has length 535 [2020-07-19 21:50:33,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:50:33,033 INFO L479 AbstractCegarLoop]: Abstraction has 545 states and 545 transitions. [2020-07-19 21:50:33,033 INFO L480 AbstractCegarLoop]: Interpolant automaton has 82 states. [2020-07-19 21:50:33,033 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 545 transitions. [2020-07-19 21:50:33,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 543 [2020-07-19 21:50:33,037 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:50:33,038 INFO L422 BasicCegarLoop]: trace histogram [77, 77, 77, 76, 76, 76, 76, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:50:33,251 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75,76 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:50:33,252 INFO L427 AbstractCegarLoop]: === Iteration 77 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:50:33,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:50:33,253 INFO L82 PathProgramCache]: Analyzing trace with hash 519057013, now seen corresponding path program 76 times [2020-07-19 21:50:33,253 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:50:33,253 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854966613] [2020-07-19 21:50:33,254 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:50:33,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:37,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:37,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:37,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:37,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:37,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:37,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:37,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:37,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:37,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:37,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:37,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:37,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:37,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:37,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:37,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:37,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:37,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:37,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:37,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:37,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:37,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:37,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:37,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:37,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:37,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:37,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:37,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:37,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:37,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:37,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:37,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:37,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:37,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:37,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:37,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:37,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:37,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:37,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:37,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:37,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:37,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:37,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:37,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:37,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:37,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:37,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:37,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:37,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:37,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:37,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:37,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:37,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:37,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:37,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:37,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:37,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:37,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:37,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:37,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:37,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:37,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:37,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:37,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:37,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:37,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:37,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:37,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:37,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:37,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:37,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:37,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:37,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:37,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:37,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:37,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:37,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:37,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:38,132 INFO L134 CoverageAnalysis]: Checked inductivity of 20254 backedges. 152 proven. 8702 refuted. 0 times theorem prover too weak. 11400 trivial. 0 not checked. [2020-07-19 21:50:38,133 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854966613] [2020-07-19 21:50:38,133 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [713253286] [2020-07-19 21:50:38,133 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 77 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 77 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:50:38,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:38,265 INFO L263 TraceCheckSpWp]: Trace formula consists of 934 conjuncts, 80 conjunts are in the unsatisfiable core [2020-07-19 21:50:38,270 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:50:38,294 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:50:38,578 INFO L134 CoverageAnalysis]: Checked inductivity of 20254 backedges. 152 proven. 8702 refuted. 0 times theorem prover too weak. 11400 trivial. 0 not checked. [2020-07-19 21:50:38,579 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:50:38,579 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [81, 81] total 83 [2020-07-19 21:50:38,579 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109504081] [2020-07-19 21:50:38,580 INFO L459 AbstractCegarLoop]: Interpolant automaton has 83 states [2020-07-19 21:50:38,580 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:50:38,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2020-07-19 21:50:38,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3091, Invalid=3715, Unknown=0, NotChecked=0, Total=6806 [2020-07-19 21:50:38,581 INFO L87 Difference]: Start difference. First operand 545 states and 545 transitions. Second operand 83 states. [2020-07-19 21:50:40,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:50:40,090 INFO L93 Difference]: Finished difference Result 555 states and 555 transitions. [2020-07-19 21:50:40,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2020-07-19 21:50:40,091 INFO L78 Accepts]: Start accepts. Automaton has 83 states. Word has length 542 [2020-07-19 21:50:40,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:50:40,095 INFO L225 Difference]: With dead ends: 555 [2020-07-19 21:50:40,095 INFO L226 Difference]: Without dead ends: 553 [2020-07-19 21:50:40,095 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 777 GetRequests, 695 SyntacticMatches, 0 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 305 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=3097, Invalid=3875, Unknown=0, NotChecked=0, Total=6972 [2020-07-19 21:50:40,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2020-07-19 21:50:40,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 552. [2020-07-19 21:50:40,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 552 states. [2020-07-19 21:50:40,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 552 transitions. [2020-07-19 21:50:40,107 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 552 transitions. Word has length 542 [2020-07-19 21:50:40,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:50:40,108 INFO L479 AbstractCegarLoop]: Abstraction has 552 states and 552 transitions. [2020-07-19 21:50:40,108 INFO L480 AbstractCegarLoop]: Interpolant automaton has 83 states. [2020-07-19 21:50:40,108 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 552 transitions. [2020-07-19 21:50:40,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 550 [2020-07-19 21:50:40,112 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:50:40,113 INFO L422 BasicCegarLoop]: trace histogram [78, 78, 78, 77, 77, 77, 77, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:50:40,317 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76,77 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:50:40,318 INFO L427 AbstractCegarLoop]: === Iteration 78 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:50:40,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:50:40,319 INFO L82 PathProgramCache]: Analyzing trace with hash -2069117112, now seen corresponding path program 77 times [2020-07-19 21:50:40,319 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:50:40,319 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428794428] [2020-07-19 21:50:40,320 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:50:40,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:45,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:45,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:45,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:45,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:45,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:45,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:45,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:45,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:45,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:45,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:45,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:45,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:45,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:45,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:45,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:45,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:45,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:45,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:45,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:45,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:45,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:45,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:45,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:45,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:45,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:45,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:45,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:45,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:45,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:45,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:45,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:45,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:45,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:45,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:45,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:45,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:45,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:45,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:45,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:45,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:45,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:45,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:45,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:45,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:45,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:45,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:45,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:45,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:45,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:45,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:45,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:45,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:45,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:45,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:45,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:45,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:45,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:45,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:45,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:45,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:45,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:45,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:45,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:45,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:45,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:45,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:45,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:45,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:45,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:45,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:45,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:45,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:45,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:45,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:45,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:45,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:45,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:45,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:45,248 INFO L134 CoverageAnalysis]: Checked inductivity of 20790 backedges. 154 proven. 8932 refuted. 0 times theorem prover too weak. 11704 trivial. 0 not checked. [2020-07-19 21:50:45,248 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428794428] [2020-07-19 21:50:45,249 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1812254681] [2020-07-19 21:50:45,249 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 78 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 78 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:50:45,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:45,384 INFO L263 TraceCheckSpWp]: Trace formula consists of 946 conjuncts, 81 conjunts are in the unsatisfiable core [2020-07-19 21:50:45,390 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:50:45,421 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:50:45,740 INFO L134 CoverageAnalysis]: Checked inductivity of 20790 backedges. 154 proven. 8932 refuted. 0 times theorem prover too weak. 11704 trivial. 0 not checked. [2020-07-19 21:50:45,741 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:50:45,741 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [82, 82] total 84 [2020-07-19 21:50:45,741 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645380826] [2020-07-19 21:50:45,742 INFO L459 AbstractCegarLoop]: Interpolant automaton has 84 states [2020-07-19 21:50:45,742 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:50:45,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 84 interpolants. [2020-07-19 21:50:45,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3170, Invalid=3802, Unknown=0, NotChecked=0, Total=6972 [2020-07-19 21:50:45,743 INFO L87 Difference]: Start difference. First operand 552 states and 552 transitions. Second operand 84 states. [2020-07-19 21:50:47,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:50:47,574 INFO L93 Difference]: Finished difference Result 562 states and 562 transitions. [2020-07-19 21:50:47,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2020-07-19 21:50:47,576 INFO L78 Accepts]: Start accepts. Automaton has 84 states. Word has length 549 [2020-07-19 21:50:47,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:50:47,578 INFO L225 Difference]: With dead ends: 562 [2020-07-19 21:50:47,579 INFO L226 Difference]: Without dead ends: 560 [2020-07-19 21:50:47,579 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 787 GetRequests, 704 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 309 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=3176, Invalid=3964, Unknown=0, NotChecked=0, Total=7140 [2020-07-19 21:50:47,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2020-07-19 21:50:47,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 559. [2020-07-19 21:50:47,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 559 states. [2020-07-19 21:50:47,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 559 transitions. [2020-07-19 21:50:47,588 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 559 transitions. Word has length 549 [2020-07-19 21:50:47,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:50:47,589 INFO L479 AbstractCegarLoop]: Abstraction has 559 states and 559 transitions. [2020-07-19 21:50:47,589 INFO L480 AbstractCegarLoop]: Interpolant automaton has 84 states. [2020-07-19 21:50:47,589 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 559 transitions. [2020-07-19 21:50:47,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 557 [2020-07-19 21:50:47,592 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:50:47,592 INFO L422 BasicCegarLoop]: trace histogram [79, 79, 79, 78, 78, 78, 78, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:50:47,793 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 78 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable77 [2020-07-19 21:50:47,793 INFO L427 AbstractCegarLoop]: === Iteration 79 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:50:47,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:50:47,794 INFO L82 PathProgramCache]: Analyzing trace with hash -1748161771, now seen corresponding path program 78 times [2020-07-19 21:50:47,794 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:50:47,795 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271903057] [2020-07-19 21:50:47,795 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:50:47,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:52,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:52,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:52,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:52,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:52,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:52,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:52,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:52,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:53,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:53,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:53,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:53,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:53,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:53,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:53,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:53,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:53,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:53,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:53,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:53,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:53,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:53,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:53,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:53,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:53,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:53,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:53,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:53,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:53,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:53,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:53,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:53,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:53,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:53,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:53,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:53,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:53,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:53,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:53,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:53,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:53,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:53,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:53,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:53,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:53,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:53,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:53,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:53,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:53,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:53,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:53,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:53,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:53,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:53,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:53,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:53,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:53,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:53,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:53,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:53,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:53,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:53,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:53,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:53,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:53,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:53,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:53,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:53,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:53,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:53,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:53,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:53,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:53,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:53,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:53,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:53,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:53,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:53,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:53,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:53,252 INFO L134 CoverageAnalysis]: Checked inductivity of 21333 backedges. 156 proven. 9165 refuted. 0 times theorem prover too weak. 12012 trivial. 0 not checked. [2020-07-19 21:50:53,253 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271903057] [2020-07-19 21:50:53,253 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [59684670] [2020-07-19 21:50:53,253 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 79 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 79 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:50:53,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:50:53,393 INFO L263 TraceCheckSpWp]: Trace formula consists of 958 conjuncts, 82 conjunts are in the unsatisfiable core [2020-07-19 21:50:53,399 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:50:53,428 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:50:53,739 INFO L134 CoverageAnalysis]: Checked inductivity of 21333 backedges. 156 proven. 9165 refuted. 0 times theorem prover too weak. 12012 trivial. 0 not checked. [2020-07-19 21:50:53,739 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:50:53,739 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [83, 83] total 85 [2020-07-19 21:50:53,739 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883633832] [2020-07-19 21:50:53,740 INFO L459 AbstractCegarLoop]: Interpolant automaton has 85 states [2020-07-19 21:50:53,740 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:50:53,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 85 interpolants. [2020-07-19 21:50:53,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3250, Invalid=3890, Unknown=0, NotChecked=0, Total=7140 [2020-07-19 21:50:53,741 INFO L87 Difference]: Start difference. First operand 559 states and 559 transitions. Second operand 85 states. [2020-07-19 21:50:55,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:50:55,464 INFO L93 Difference]: Finished difference Result 569 states and 569 transitions. [2020-07-19 21:50:55,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2020-07-19 21:50:55,465 INFO L78 Accepts]: Start accepts. Automaton has 85 states. Word has length 556 [2020-07-19 21:50:55,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:50:55,468 INFO L225 Difference]: With dead ends: 569 [2020-07-19 21:50:55,468 INFO L226 Difference]: Without dead ends: 567 [2020-07-19 21:50:55,469 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 797 GetRequests, 713 SyntacticMatches, 0 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 313 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=3256, Invalid=4054, Unknown=0, NotChecked=0, Total=7310 [2020-07-19 21:50:55,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2020-07-19 21:50:55,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 566. [2020-07-19 21:50:55,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 566 states. [2020-07-19 21:50:55,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 566 transitions. [2020-07-19 21:50:55,478 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 566 transitions. Word has length 556 [2020-07-19 21:50:55,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:50:55,478 INFO L479 AbstractCegarLoop]: Abstraction has 566 states and 566 transitions. [2020-07-19 21:50:55,478 INFO L480 AbstractCegarLoop]: Interpolant automaton has 85 states. [2020-07-19 21:50:55,478 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 566 transitions. [2020-07-19 21:50:55,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 564 [2020-07-19 21:50:55,481 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:50:55,482 INFO L422 BasicCegarLoop]: trace histogram [80, 80, 80, 79, 79, 79, 79, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:50:55,682 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 79 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable78 [2020-07-19 21:50:55,683 INFO L427 AbstractCegarLoop]: === Iteration 80 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:50:55,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:50:55,684 INFO L82 PathProgramCache]: Analyzing trace with hash 825710248, now seen corresponding path program 79 times [2020-07-19 21:50:55,684 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:50:55,684 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470559704] [2020-07-19 21:50:55,684 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:50:55,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:00,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:00,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:00,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:00,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:00,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:00,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:00,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:00,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:00,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:00,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:00,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:00,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:00,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:00,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:00,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:00,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:00,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:00,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:00,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:00,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:00,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:00,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:00,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:00,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:00,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:00,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:00,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:00,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:00,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:00,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:00,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:00,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:00,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:00,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:00,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:00,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:00,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:00,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:00,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:00,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:00,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:00,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:00,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:00,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:00,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:00,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:00,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:00,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:00,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:00,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:00,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:00,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:00,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:00,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:00,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:00,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:00,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:00,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:00,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:00,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:00,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:00,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:00,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:00,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:00,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:00,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:00,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:00,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:00,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:00,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:00,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:00,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:00,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:00,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:00,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:00,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:00,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:00,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:00,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:00,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:00,998 INFO L134 CoverageAnalysis]: Checked inductivity of 21883 backedges. 158 proven. 9401 refuted. 0 times theorem prover too weak. 12324 trivial. 0 not checked. [2020-07-19 21:51:00,999 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470559704] [2020-07-19 21:51:00,999 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [960874627] [2020-07-19 21:51:00,999 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 80 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 80 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:51:01,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:01,138 INFO L263 TraceCheckSpWp]: Trace formula consists of 970 conjuncts, 83 conjunts are in the unsatisfiable core [2020-07-19 21:51:01,143 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:51:01,164 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:51:01,466 INFO L134 CoverageAnalysis]: Checked inductivity of 21883 backedges. 158 proven. 9401 refuted. 0 times theorem prover too weak. 12324 trivial. 0 not checked. [2020-07-19 21:51:01,466 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:51:01,467 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [84, 84] total 86 [2020-07-19 21:51:01,467 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498121876] [2020-07-19 21:51:01,467 INFO L459 AbstractCegarLoop]: Interpolant automaton has 86 states [2020-07-19 21:51:01,467 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:51:01,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 86 interpolants. [2020-07-19 21:51:01,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3331, Invalid=3979, Unknown=0, NotChecked=0, Total=7310 [2020-07-19 21:51:01,468 INFO L87 Difference]: Start difference. First operand 566 states and 566 transitions. Second operand 86 states. [2020-07-19 21:51:03,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:51:03,088 INFO L93 Difference]: Finished difference Result 576 states and 576 transitions. [2020-07-19 21:51:03,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2020-07-19 21:51:03,089 INFO L78 Accepts]: Start accepts. Automaton has 86 states. Word has length 563 [2020-07-19 21:51:03,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:51:03,092 INFO L225 Difference]: With dead ends: 576 [2020-07-19 21:51:03,092 INFO L226 Difference]: Without dead ends: 574 [2020-07-19 21:51:03,093 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 807 GetRequests, 722 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 317 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=3337, Invalid=4145, Unknown=0, NotChecked=0, Total=7482 [2020-07-19 21:51:03,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2020-07-19 21:51:03,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 573. [2020-07-19 21:51:03,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 573 states. [2020-07-19 21:51:03,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 573 transitions. [2020-07-19 21:51:03,103 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 573 transitions. Word has length 563 [2020-07-19 21:51:03,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:51:03,103 INFO L479 AbstractCegarLoop]: Abstraction has 573 states and 573 transitions. [2020-07-19 21:51:03,104 INFO L480 AbstractCegarLoop]: Interpolant automaton has 86 states. [2020-07-19 21:51:03,104 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 573 transitions. [2020-07-19 21:51:03,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 571 [2020-07-19 21:51:03,107 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:51:03,107 INFO L422 BasicCegarLoop]: trace histogram [81, 81, 81, 80, 80, 80, 80, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:51:03,307 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79,80 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:51:03,308 INFO L427 AbstractCegarLoop]: === Iteration 81 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:51:03,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:51:03,309 INFO L82 PathProgramCache]: Analyzing trace with hash -2057072715, now seen corresponding path program 80 times [2020-07-19 21:51:03,309 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:51:03,309 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827399828] [2020-07-19 21:51:03,310 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:51:03,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:08,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:08,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:08,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:08,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:08,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:08,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:08,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:08,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:08,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:08,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:08,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:08,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:08,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:08,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:08,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:08,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:08,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:08,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:08,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:08,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:08,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:08,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:08,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:08,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:08,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:08,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:08,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:08,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:08,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:08,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:08,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:08,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:08,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:08,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:08,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:08,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:08,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:08,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:08,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:08,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:08,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:08,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:08,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:08,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:08,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:08,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:08,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:08,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:08,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:08,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:08,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:08,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:08,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:08,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:08,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:08,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:08,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:08,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:08,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:08,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:08,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:08,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:08,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:08,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:08,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:08,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:08,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:08,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:08,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:08,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:08,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:08,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:08,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:08,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:08,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:08,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:08,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:08,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:08,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:08,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:08,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:08,924 INFO L134 CoverageAnalysis]: Checked inductivity of 22440 backedges. 160 proven. 9640 refuted. 0 times theorem prover too weak. 12640 trivial. 0 not checked. [2020-07-19 21:51:08,925 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827399828] [2020-07-19 21:51:08,925 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [677167724] [2020-07-19 21:51:08,925 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 81 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 81 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:51:09,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:09,064 INFO L263 TraceCheckSpWp]: Trace formula consists of 982 conjuncts, 84 conjunts are in the unsatisfiable core [2020-07-19 21:51:09,071 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:51:09,094 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:51:09,393 INFO L134 CoverageAnalysis]: Checked inductivity of 22440 backedges. 160 proven. 9640 refuted. 0 times theorem prover too weak. 12640 trivial. 0 not checked. [2020-07-19 21:51:09,393 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:51:09,393 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [85, 85] total 87 [2020-07-19 21:51:09,394 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078902703] [2020-07-19 21:51:09,394 INFO L459 AbstractCegarLoop]: Interpolant automaton has 87 states [2020-07-19 21:51:09,394 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:51:09,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 87 interpolants. [2020-07-19 21:51:09,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3413, Invalid=4069, Unknown=0, NotChecked=0, Total=7482 [2020-07-19 21:51:09,395 INFO L87 Difference]: Start difference. First operand 573 states and 573 transitions. Second operand 87 states. [2020-07-19 21:51:11,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:51:11,142 INFO L93 Difference]: Finished difference Result 583 states and 583 transitions. [2020-07-19 21:51:11,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2020-07-19 21:51:11,143 INFO L78 Accepts]: Start accepts. Automaton has 87 states. Word has length 570 [2020-07-19 21:51:11,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:51:11,146 INFO L225 Difference]: With dead ends: 583 [2020-07-19 21:51:11,146 INFO L226 Difference]: Without dead ends: 581 [2020-07-19 21:51:11,147 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 817 GetRequests, 731 SyntacticMatches, 0 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 321 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=3419, Invalid=4237, Unknown=0, NotChecked=0, Total=7656 [2020-07-19 21:51:11,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2020-07-19 21:51:11,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 580. [2020-07-19 21:51:11,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 580 states. [2020-07-19 21:51:11,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 580 transitions. [2020-07-19 21:51:11,157 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 580 transitions. Word has length 570 [2020-07-19 21:51:11,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:51:11,158 INFO L479 AbstractCegarLoop]: Abstraction has 580 states and 580 transitions. [2020-07-19 21:51:11,158 INFO L480 AbstractCegarLoop]: Interpolant automaton has 87 states. [2020-07-19 21:51:11,158 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 580 transitions. [2020-07-19 21:51:11,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 578 [2020-07-19 21:51:11,161 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:51:11,161 INFO L422 BasicCegarLoop]: trace histogram [82, 82, 82, 81, 81, 81, 81, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:51:11,362 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80,81 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:51:11,362 INFO L427 AbstractCegarLoop]: === Iteration 82 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:51:11,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:51:11,363 INFO L82 PathProgramCache]: Analyzing trace with hash -786137592, now seen corresponding path program 81 times [2020-07-19 21:51:11,364 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:51:11,364 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062873795] [2020-07-19 21:51:11,364 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:51:11,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:16,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:16,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:16,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:16,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:16,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:16,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:16,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:16,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:16,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:16,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:16,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:16,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:16,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:16,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:16,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:16,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:16,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:16,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:16,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:16,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:16,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:16,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:16,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:16,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:16,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:16,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:16,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:16,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:16,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:16,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:16,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:16,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:16,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:16,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:16,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:16,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:16,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:16,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:16,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:16,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:16,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:16,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:16,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:17,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:17,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:17,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:17,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:17,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:17,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:17,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:17,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:17,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:17,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:17,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:17,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:17,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:17,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:17,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:17,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:17,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:17,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:17,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:17,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:17,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:17,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:17,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:17,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:17,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:17,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:17,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:17,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:17,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:17,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:17,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:17,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:17,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:17,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:17,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:17,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:17,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:17,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:17,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:17,303 INFO L134 CoverageAnalysis]: Checked inductivity of 23004 backedges. 162 proven. 9882 refuted. 0 times theorem prover too weak. 12960 trivial. 0 not checked. [2020-07-19 21:51:17,303 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062873795] [2020-07-19 21:51:17,304 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [73098718] [2020-07-19 21:51:17,304 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 82 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 82 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:51:17,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:17,440 INFO L263 TraceCheckSpWp]: Trace formula consists of 994 conjuncts, 85 conjunts are in the unsatisfiable core [2020-07-19 21:51:17,446 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:51:17,464 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:51:17,766 INFO L134 CoverageAnalysis]: Checked inductivity of 23004 backedges. 162 proven. 9882 refuted. 0 times theorem prover too weak. 12960 trivial. 0 not checked. [2020-07-19 21:51:17,767 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:51:17,767 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [86, 86] total 88 [2020-07-19 21:51:17,767 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925607341] [2020-07-19 21:51:17,768 INFO L459 AbstractCegarLoop]: Interpolant automaton has 88 states [2020-07-19 21:51:17,768 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:51:17,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 88 interpolants. [2020-07-19 21:51:17,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3496, Invalid=4160, Unknown=0, NotChecked=0, Total=7656 [2020-07-19 21:51:17,769 INFO L87 Difference]: Start difference. First operand 580 states and 580 transitions. Second operand 88 states. [2020-07-19 21:51:19,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:51:19,791 INFO L93 Difference]: Finished difference Result 590 states and 590 transitions. [2020-07-19 21:51:19,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2020-07-19 21:51:19,793 INFO L78 Accepts]: Start accepts. Automaton has 88 states. Word has length 577 [2020-07-19 21:51:19,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:51:19,796 INFO L225 Difference]: With dead ends: 590 [2020-07-19 21:51:19,796 INFO L226 Difference]: Without dead ends: 588 [2020-07-19 21:51:19,796 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 827 GetRequests, 740 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 325 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=3502, Invalid=4330, Unknown=0, NotChecked=0, Total=7832 [2020-07-19 21:51:19,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2020-07-19 21:51:19,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 587. [2020-07-19 21:51:19,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 587 states. [2020-07-19 21:51:19,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 587 transitions. [2020-07-19 21:51:19,808 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 587 transitions. Word has length 577 [2020-07-19 21:51:19,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:51:19,809 INFO L479 AbstractCegarLoop]: Abstraction has 587 states and 587 transitions. [2020-07-19 21:51:19,809 INFO L480 AbstractCegarLoop]: Interpolant automaton has 88 states. [2020-07-19 21:51:19,809 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 587 transitions. [2020-07-19 21:51:19,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 585 [2020-07-19 21:51:19,814 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:51:19,815 INFO L422 BasicCegarLoop]: trace histogram [83, 83, 83, 82, 82, 82, 82, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:51:20,028 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81,82 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:51:20,029 INFO L427 AbstractCegarLoop]: === Iteration 83 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:51:20,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:51:20,029 INFO L82 PathProgramCache]: Analyzing trace with hash -753050539, now seen corresponding path program 82 times [2020-07-19 21:51:20,030 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:51:20,030 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393182047] [2020-07-19 21:51:20,030 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:51:20,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:26,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:26,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:26,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:26,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:26,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:26,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:26,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:26,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:26,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:26,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:26,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:26,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:26,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:26,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:26,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:26,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:26,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:26,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:26,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:26,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:26,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:26,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:26,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:26,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:26,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:26,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:26,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:26,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:26,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:26,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:26,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:26,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:26,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:26,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:26,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:26,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:26,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:26,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:26,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:26,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:26,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:26,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:26,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:26,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:26,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:26,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:26,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:26,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:26,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:26,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:26,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:26,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:26,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:26,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:26,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:26,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:26,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:26,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:26,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:26,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:26,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:26,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:26,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:26,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:26,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:26,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:26,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:26,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:26,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:26,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:26,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:26,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:26,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:26,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:26,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:26,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:26,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:26,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:26,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:26,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:26,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:26,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:26,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:26,383 INFO L134 CoverageAnalysis]: Checked inductivity of 23575 backedges. 164 proven. 10127 refuted. 0 times theorem prover too weak. 13284 trivial. 0 not checked. [2020-07-19 21:51:26,383 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393182047] [2020-07-19 21:51:26,383 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1834975749] [2020-07-19 21:51:26,384 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 83 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 83 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:51:26,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:26,533 INFO L263 TraceCheckSpWp]: Trace formula consists of 1006 conjuncts, 86 conjunts are in the unsatisfiable core [2020-07-19 21:51:26,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:51:26,561 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:51:26,887 INFO L134 CoverageAnalysis]: Checked inductivity of 23575 backedges. 164 proven. 10127 refuted. 0 times theorem prover too weak. 13284 trivial. 0 not checked. [2020-07-19 21:51:26,888 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:51:26,888 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [87, 87] total 89 [2020-07-19 21:51:26,888 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10660975] [2020-07-19 21:51:26,889 INFO L459 AbstractCegarLoop]: Interpolant automaton has 89 states [2020-07-19 21:51:26,889 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:51:26,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 89 interpolants. [2020-07-19 21:51:26,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3580, Invalid=4252, Unknown=0, NotChecked=0, Total=7832 [2020-07-19 21:51:26,890 INFO L87 Difference]: Start difference. First operand 587 states and 587 transitions. Second operand 89 states. [2020-07-19 21:51:28,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:51:28,907 INFO L93 Difference]: Finished difference Result 597 states and 597 transitions. [2020-07-19 21:51:28,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2020-07-19 21:51:28,908 INFO L78 Accepts]: Start accepts. Automaton has 89 states. Word has length 584 [2020-07-19 21:51:28,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:51:28,910 INFO L225 Difference]: With dead ends: 597 [2020-07-19 21:51:28,910 INFO L226 Difference]: Without dead ends: 595 [2020-07-19 21:51:28,911 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 837 GetRequests, 749 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 329 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=3586, Invalid=4424, Unknown=0, NotChecked=0, Total=8010 [2020-07-19 21:51:28,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2020-07-19 21:51:28,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 594. [2020-07-19 21:51:28,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 594 states. [2020-07-19 21:51:28,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 594 states to 594 states and 594 transitions. [2020-07-19 21:51:28,919 INFO L78 Accepts]: Start accepts. Automaton has 594 states and 594 transitions. Word has length 584 [2020-07-19 21:51:28,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:51:28,920 INFO L479 AbstractCegarLoop]: Abstraction has 594 states and 594 transitions. [2020-07-19 21:51:28,920 INFO L480 AbstractCegarLoop]: Interpolant automaton has 89 states. [2020-07-19 21:51:28,920 INFO L276 IsEmpty]: Start isEmpty. Operand 594 states and 594 transitions. [2020-07-19 21:51:28,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 592 [2020-07-19 21:51:28,924 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:51:28,924 INFO L422 BasicCegarLoop]: trace histogram [84, 84, 84, 83, 83, 83, 83, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:51:29,126 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82,83 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:51:29,126 INFO L427 AbstractCegarLoop]: === Iteration 84 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:51:29,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:51:29,127 INFO L82 PathProgramCache]: Analyzing trace with hash -1379320472, now seen corresponding path program 83 times [2020-07-19 21:51:29,128 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:51:29,128 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105561504] [2020-07-19 21:51:29,128 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:51:29,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:35,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:35,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:35,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:35,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:35,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:35,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:35,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:35,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:35,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:35,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:35,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:35,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:35,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:35,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:35,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:35,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:35,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:35,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:35,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:35,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:35,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:35,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:35,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:35,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:35,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:35,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:35,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:35,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:35,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:35,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:35,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:35,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:35,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:35,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:35,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:35,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:35,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:35,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:35,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:35,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:35,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:35,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:35,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:35,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:35,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:35,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:35,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:35,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:35,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:35,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:35,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:35,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:35,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:35,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:35,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:35,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:35,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:35,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:35,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:35,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:35,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:35,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:35,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:35,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:35,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:35,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:35,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:35,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:35,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:35,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:35,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:35,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:35,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:35,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:35,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:35,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:35,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:35,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:35,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:35,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:35,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:35,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:35,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:35,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:35,436 INFO L134 CoverageAnalysis]: Checked inductivity of 24153 backedges. 166 proven. 10375 refuted. 0 times theorem prover too weak. 13612 trivial. 0 not checked. [2020-07-19 21:51:35,437 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105561504] [2020-07-19 21:51:35,437 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [414831339] [2020-07-19 21:51:35,437 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 84 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 84 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:51:35,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:35,581 INFO L263 TraceCheckSpWp]: Trace formula consists of 1018 conjuncts, 87 conjunts are in the unsatisfiable core [2020-07-19 21:51:35,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:51:35,619 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:51:36,009 INFO L134 CoverageAnalysis]: Checked inductivity of 24153 backedges. 166 proven. 10375 refuted. 0 times theorem prover too weak. 13612 trivial. 0 not checked. [2020-07-19 21:51:36,009 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:51:36,010 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [88, 88] total 90 [2020-07-19 21:51:36,010 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427217482] [2020-07-19 21:51:36,010 INFO L459 AbstractCegarLoop]: Interpolant automaton has 90 states [2020-07-19 21:51:36,011 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:51:36,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 90 interpolants. [2020-07-19 21:51:36,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3665, Invalid=4345, Unknown=0, NotChecked=0, Total=8010 [2020-07-19 21:51:36,011 INFO L87 Difference]: Start difference. First operand 594 states and 594 transitions. Second operand 90 states. [2020-07-19 21:51:38,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:51:38,031 INFO L93 Difference]: Finished difference Result 604 states and 604 transitions. [2020-07-19 21:51:38,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2020-07-19 21:51:38,032 INFO L78 Accepts]: Start accepts. Automaton has 90 states. Word has length 591 [2020-07-19 21:51:38,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:51:38,035 INFO L225 Difference]: With dead ends: 604 [2020-07-19 21:51:38,035 INFO L226 Difference]: Without dead ends: 602 [2020-07-19 21:51:38,036 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 847 GetRequests, 758 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 333 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=3671, Invalid=4519, Unknown=0, NotChecked=0, Total=8190 [2020-07-19 21:51:38,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2020-07-19 21:51:38,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 601. [2020-07-19 21:51:38,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 601 states. [2020-07-19 21:51:38,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 601 transitions. [2020-07-19 21:51:38,047 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 601 transitions. Word has length 591 [2020-07-19 21:51:38,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:51:38,048 INFO L479 AbstractCegarLoop]: Abstraction has 601 states and 601 transitions. [2020-07-19 21:51:38,048 INFO L480 AbstractCegarLoop]: Interpolant automaton has 90 states. [2020-07-19 21:51:38,048 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 601 transitions. [2020-07-19 21:51:38,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 599 [2020-07-19 21:51:38,052 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:51:38,052 INFO L422 BasicCegarLoop]: trace histogram [85, 85, 85, 84, 84, 84, 84, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:51:38,252 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83,84 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:51:38,253 INFO L427 AbstractCegarLoop]: === Iteration 85 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:51:38,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:51:38,254 INFO L82 PathProgramCache]: Analyzing trace with hash 719622389, now seen corresponding path program 84 times [2020-07-19 21:51:38,255 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:51:38,255 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070915295] [2020-07-19 21:51:38,255 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:51:38,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:44,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:44,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:44,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:44,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:44,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:44,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:44,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:44,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:44,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:44,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:44,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:44,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:44,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:44,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:44,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:44,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:44,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:44,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:44,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:44,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:44,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:44,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:44,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:44,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:44,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:44,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:44,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:44,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:44,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:44,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:44,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:44,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:44,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:44,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:44,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:44,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:44,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:44,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:44,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:44,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:44,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:44,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:44,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:44,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:44,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:44,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:44,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:44,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:44,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:44,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:44,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:44,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:44,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:44,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:44,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:44,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:44,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:44,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:44,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:44,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:44,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:44,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:44,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:44,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:44,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:44,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:44,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:44,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:44,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:44,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:44,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:44,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:44,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:44,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:44,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:44,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:44,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:44,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:44,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:44,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:44,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:44,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:44,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:44,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:44,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:44,844 INFO L134 CoverageAnalysis]: Checked inductivity of 24738 backedges. 168 proven. 10626 refuted. 0 times theorem prover too weak. 13944 trivial. 0 not checked. [2020-07-19 21:51:44,844 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070915295] [2020-07-19 21:51:44,844 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [55884197] [2020-07-19 21:51:44,845 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 85 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 85 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:51:44,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:44,993 INFO L263 TraceCheckSpWp]: Trace formula consists of 1030 conjuncts, 88 conjunts are in the unsatisfiable core [2020-07-19 21:51:44,998 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:51:45,023 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:51:45,388 INFO L134 CoverageAnalysis]: Checked inductivity of 24738 backedges. 168 proven. 10626 refuted. 0 times theorem prover too weak. 13944 trivial. 0 not checked. [2020-07-19 21:51:45,388 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:51:45,388 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [89, 89] total 91 [2020-07-19 21:51:45,389 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357532590] [2020-07-19 21:51:45,389 INFO L459 AbstractCegarLoop]: Interpolant automaton has 91 states [2020-07-19 21:51:45,390 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:51:45,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 91 interpolants. [2020-07-19 21:51:45,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3751, Invalid=4439, Unknown=0, NotChecked=0, Total=8190 [2020-07-19 21:51:45,390 INFO L87 Difference]: Start difference. First operand 601 states and 601 transitions. Second operand 91 states. [2020-07-19 21:51:47,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:51:47,432 INFO L93 Difference]: Finished difference Result 611 states and 611 transitions. [2020-07-19 21:51:47,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2020-07-19 21:51:47,434 INFO L78 Accepts]: Start accepts. Automaton has 91 states. Word has length 598 [2020-07-19 21:51:47,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:51:47,437 INFO L225 Difference]: With dead ends: 611 [2020-07-19 21:51:47,437 INFO L226 Difference]: Without dead ends: 609 [2020-07-19 21:51:47,438 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 857 GetRequests, 767 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 337 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=3757, Invalid=4615, Unknown=0, NotChecked=0, Total=8372 [2020-07-19 21:51:47,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 609 states. [2020-07-19 21:51:47,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 609 to 608. [2020-07-19 21:51:47,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 608 states. [2020-07-19 21:51:47,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 608 states to 608 states and 608 transitions. [2020-07-19 21:51:47,448 INFO L78 Accepts]: Start accepts. Automaton has 608 states and 608 transitions. Word has length 598 [2020-07-19 21:51:47,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:51:47,449 INFO L479 AbstractCegarLoop]: Abstraction has 608 states and 608 transitions. [2020-07-19 21:51:47,449 INFO L480 AbstractCegarLoop]: Interpolant automaton has 91 states. [2020-07-19 21:51:47,449 INFO L276 IsEmpty]: Start isEmpty. Operand 608 states and 608 transitions. [2020-07-19 21:51:47,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 606 [2020-07-19 21:51:47,453 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:51:47,453 INFO L422 BasicCegarLoop]: trace histogram [86, 86, 86, 85, 85, 85, 85, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:51:47,653 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 85 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable84 [2020-07-19 21:51:47,654 INFO L427 AbstractCegarLoop]: === Iteration 86 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:51:47,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:51:47,655 INFO L82 PathProgramCache]: Analyzing trace with hash 33264840, now seen corresponding path program 85 times [2020-07-19 21:51:47,655 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:51:47,656 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234152847] [2020-07-19 21:51:47,656 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:51:47,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:54,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:54,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:54,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:54,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:54,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:54,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:54,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:54,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:54,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:54,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:54,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:54,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:54,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:54,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:54,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:54,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:54,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:54,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:54,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:54,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:54,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:54,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:54,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:54,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:54,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:54,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:54,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:54,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:54,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:54,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:54,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:54,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:54,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:54,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:54,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:54,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:54,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:54,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:54,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:54,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:54,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:54,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:54,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:54,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:54,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:54,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:54,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:54,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:54,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:54,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:54,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:54,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:54,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:54,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:54,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:54,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:54,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:54,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:54,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:54,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:54,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:54,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:54,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:54,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:54,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:54,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:54,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:54,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:54,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:54,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:54,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:54,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:54,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:54,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:54,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:54,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:54,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:54,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:54,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:54,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:54,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:54,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:54,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:54,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:54,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:54,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:54,534 INFO L134 CoverageAnalysis]: Checked inductivity of 25330 backedges. 170 proven. 10880 refuted. 0 times theorem prover too weak. 14280 trivial. 0 not checked. [2020-07-19 21:51:54,534 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234152847] [2020-07-19 21:51:54,534 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1918610986] [2020-07-19 21:51:54,535 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 86 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 86 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:51:54,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:51:54,668 INFO L263 TraceCheckSpWp]: Trace formula consists of 1042 conjuncts, 89 conjunts are in the unsatisfiable core [2020-07-19 21:51:54,672 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:51:54,691 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:51:55,006 INFO L134 CoverageAnalysis]: Checked inductivity of 25330 backedges. 170 proven. 10880 refuted. 0 times theorem prover too weak. 14280 trivial. 0 not checked. [2020-07-19 21:51:55,007 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:51:55,007 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [90, 90] total 92 [2020-07-19 21:51:55,008 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879678054] [2020-07-19 21:51:55,009 INFO L459 AbstractCegarLoop]: Interpolant automaton has 92 states [2020-07-19 21:51:55,009 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:51:55,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 92 interpolants. [2020-07-19 21:51:55,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3838, Invalid=4534, Unknown=0, NotChecked=0, Total=8372 [2020-07-19 21:51:55,010 INFO L87 Difference]: Start difference. First operand 608 states and 608 transitions. Second operand 92 states. [2020-07-19 21:51:57,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:51:57,044 INFO L93 Difference]: Finished difference Result 618 states and 618 transitions. [2020-07-19 21:51:57,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2020-07-19 21:51:57,045 INFO L78 Accepts]: Start accepts. Automaton has 92 states. Word has length 605 [2020-07-19 21:51:57,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:51:57,048 INFO L225 Difference]: With dead ends: 618 [2020-07-19 21:51:57,048 INFO L226 Difference]: Without dead ends: 616 [2020-07-19 21:51:57,049 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 867 GetRequests, 776 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 341 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=3844, Invalid=4712, Unknown=0, NotChecked=0, Total=8556 [2020-07-19 21:51:57,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2020-07-19 21:51:57,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 615. [2020-07-19 21:51:57,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 615 states. [2020-07-19 21:51:57,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 615 transitions. [2020-07-19 21:51:57,059 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 615 transitions. Word has length 605 [2020-07-19 21:51:57,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:51:57,060 INFO L479 AbstractCegarLoop]: Abstraction has 615 states and 615 transitions. [2020-07-19 21:51:57,060 INFO L480 AbstractCegarLoop]: Interpolant automaton has 92 states. [2020-07-19 21:51:57,060 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 615 transitions. [2020-07-19 21:51:57,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 613 [2020-07-19 21:51:57,064 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:51:57,064 INFO L422 BasicCegarLoop]: trace histogram [87, 87, 87, 86, 86, 86, 86, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:51:57,270 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85,86 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:51:57,271 INFO L427 AbstractCegarLoop]: === Iteration 87 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:51:57,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:51:57,272 INFO L82 PathProgramCache]: Analyzing trace with hash -1792856683, now seen corresponding path program 86 times [2020-07-19 21:51:57,272 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:51:57,272 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688212781] [2020-07-19 21:51:57,273 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:51:57,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:04,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:04,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:04,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:04,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:04,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:04,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:04,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:04,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:04,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:04,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:04,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:04,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:04,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:04,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:04,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:04,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:04,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:04,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:04,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:04,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:04,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:04,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:04,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:04,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:04,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:04,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:04,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:04,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:04,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:04,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:04,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:04,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:04,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:04,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:04,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:04,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:04,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:04,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:04,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:04,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:04,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:04,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:04,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:04,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:04,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:04,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:04,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:04,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:04,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:04,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:04,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:04,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:04,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:04,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:04,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:04,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:04,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:04,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:04,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:04,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:04,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:04,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:04,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:04,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:04,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:04,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:04,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:04,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:04,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:04,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:04,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:04,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:04,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:04,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:04,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:04,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:04,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:04,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:04,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:04,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:04,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:04,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:04,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:04,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:04,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:04,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:04,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:04,827 INFO L134 CoverageAnalysis]: Checked inductivity of 25929 backedges. 172 proven. 11137 refuted. 0 times theorem prover too weak. 14620 trivial. 0 not checked. [2020-07-19 21:52:04,828 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688212781] [2020-07-19 21:52:04,828 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [303083658] [2020-07-19 21:52:04,828 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 87 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 87 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:52:04,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:04,985 INFO L263 TraceCheckSpWp]: Trace formula consists of 1054 conjuncts, 90 conjunts are in the unsatisfiable core [2020-07-19 21:52:04,991 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:52:05,019 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:52:05,440 INFO L134 CoverageAnalysis]: Checked inductivity of 25929 backedges. 172 proven. 11137 refuted. 0 times theorem prover too weak. 14620 trivial. 0 not checked. [2020-07-19 21:52:05,440 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:52:05,440 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [91, 91] total 93 [2020-07-19 21:52:05,441 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995587004] [2020-07-19 21:52:05,441 INFO L459 AbstractCegarLoop]: Interpolant automaton has 93 states [2020-07-19 21:52:05,441 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:52:05,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 93 interpolants. [2020-07-19 21:52:05,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3926, Invalid=4630, Unknown=0, NotChecked=0, Total=8556 [2020-07-19 21:52:05,442 INFO L87 Difference]: Start difference. First operand 615 states and 615 transitions. Second operand 93 states. [2020-07-19 21:52:07,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:52:07,844 INFO L93 Difference]: Finished difference Result 625 states and 625 transitions. [2020-07-19 21:52:07,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2020-07-19 21:52:07,846 INFO L78 Accepts]: Start accepts. Automaton has 93 states. Word has length 612 [2020-07-19 21:52:07,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:52:07,848 INFO L225 Difference]: With dead ends: 625 [2020-07-19 21:52:07,849 INFO L226 Difference]: Without dead ends: 623 [2020-07-19 21:52:07,849 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 877 GetRequests, 785 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 345 ImplicationChecksByTransitivity, 7.4s TimeCoverageRelationStatistics Valid=3932, Invalid=4810, Unknown=0, NotChecked=0, Total=8742 [2020-07-19 21:52:07,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 623 states. [2020-07-19 21:52:07,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 623 to 622. [2020-07-19 21:52:07,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 622 states. [2020-07-19 21:52:07,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 622 states to 622 states and 622 transitions. [2020-07-19 21:52:07,868 INFO L78 Accepts]: Start accepts. Automaton has 622 states and 622 transitions. Word has length 612 [2020-07-19 21:52:07,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:52:07,868 INFO L479 AbstractCegarLoop]: Abstraction has 622 states and 622 transitions. [2020-07-19 21:52:07,868 INFO L480 AbstractCegarLoop]: Interpolant automaton has 93 states. [2020-07-19 21:52:07,868 INFO L276 IsEmpty]: Start isEmpty. Operand 622 states and 622 transitions. [2020-07-19 21:52:07,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 620 [2020-07-19 21:52:07,874 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:52:07,875 INFO L422 BasicCegarLoop]: trace histogram [88, 88, 88, 87, 87, 87, 87, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:52:08,075 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 87 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable86 [2020-07-19 21:52:08,076 INFO L427 AbstractCegarLoop]: === Iteration 88 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:52:08,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:52:08,076 INFO L82 PathProgramCache]: Analyzing trace with hash 1511097384, now seen corresponding path program 87 times [2020-07-19 21:52:08,076 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:52:08,077 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064565702] [2020-07-19 21:52:08,077 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:52:08,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:15,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:15,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:15,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:15,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:15,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:15,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:15,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:15,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:15,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:15,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:15,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:15,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:15,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:15,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:15,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:15,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:15,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:15,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:15,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:15,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:15,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:15,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:15,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:15,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:15,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:15,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:15,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:15,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:15,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:15,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:15,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:15,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:15,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:15,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:15,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:15,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:15,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:15,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:15,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:15,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:15,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:15,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:15,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:15,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:15,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:15,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:15,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:15,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:15,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:15,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:15,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:15,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:15,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:15,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:15,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:15,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:15,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:15,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:15,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:15,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:15,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:15,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:15,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:15,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:15,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:15,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:15,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:15,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:15,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:15,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:15,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:15,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:15,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:15,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:15,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:15,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:15,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:15,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:15,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:15,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:15,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:15,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:15,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:15,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:15,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:15,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:15,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:15,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:15,603 INFO L134 CoverageAnalysis]: Checked inductivity of 26535 backedges. 174 proven. 11397 refuted. 0 times theorem prover too weak. 14964 trivial. 0 not checked. [2020-07-19 21:52:15,604 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064565702] [2020-07-19 21:52:15,604 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1893059741] [2020-07-19 21:52:15,604 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 88 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 88 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:52:15,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:15,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 1066 conjuncts, 91 conjunts are in the unsatisfiable core [2020-07-19 21:52:15,764 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:52:15,794 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:52:16,162 INFO L134 CoverageAnalysis]: Checked inductivity of 26535 backedges. 174 proven. 11397 refuted. 0 times theorem prover too weak. 14964 trivial. 0 not checked. [2020-07-19 21:52:16,163 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:52:16,163 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [92, 92] total 94 [2020-07-19 21:52:16,163 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901930664] [2020-07-19 21:52:16,164 INFO L459 AbstractCegarLoop]: Interpolant automaton has 94 states [2020-07-19 21:52:16,164 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:52:16,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2020-07-19 21:52:16,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=4015, Invalid=4727, Unknown=0, NotChecked=0, Total=8742 [2020-07-19 21:52:16,165 INFO L87 Difference]: Start difference. First operand 622 states and 622 transitions. Second operand 94 states. [2020-07-19 21:52:18,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:52:18,481 INFO L93 Difference]: Finished difference Result 632 states and 632 transitions. [2020-07-19 21:52:18,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2020-07-19 21:52:18,482 INFO L78 Accepts]: Start accepts. Automaton has 94 states. Word has length 619 [2020-07-19 21:52:18,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:52:18,485 INFO L225 Difference]: With dead ends: 632 [2020-07-19 21:52:18,486 INFO L226 Difference]: Without dead ends: 630 [2020-07-19 21:52:18,487 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 887 GetRequests, 794 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 349 ImplicationChecksByTransitivity, 7.4s TimeCoverageRelationStatistics Valid=4021, Invalid=4909, Unknown=0, NotChecked=0, Total=8930 [2020-07-19 21:52:18,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2020-07-19 21:52:18,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 629. [2020-07-19 21:52:18,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 629 states. [2020-07-19 21:52:18,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 629 transitions. [2020-07-19 21:52:18,496 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 629 transitions. Word has length 619 [2020-07-19 21:52:18,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:52:18,497 INFO L479 AbstractCegarLoop]: Abstraction has 629 states and 629 transitions. [2020-07-19 21:52:18,497 INFO L480 AbstractCegarLoop]: Interpolant automaton has 94 states. [2020-07-19 21:52:18,497 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 629 transitions. [2020-07-19 21:52:18,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 627 [2020-07-19 21:52:18,500 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:52:18,501 INFO L422 BasicCegarLoop]: trace histogram [89, 89, 89, 88, 88, 88, 88, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:52:18,701 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 88 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable87 [2020-07-19 21:52:18,702 INFO L427 AbstractCegarLoop]: === Iteration 89 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:52:18,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:52:18,703 INFO L82 PathProgramCache]: Analyzing trace with hash 415445557, now seen corresponding path program 88 times [2020-07-19 21:52:18,703 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:52:18,703 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051734577] [2020-07-19 21:52:18,704 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:52:18,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,521 INFO L134 CoverageAnalysis]: Checked inductivity of 27148 backedges. 176 proven. 11660 refuted. 0 times theorem prover too weak. 15312 trivial. 0 not checked. [2020-07-19 21:52:26,521 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051734577] [2020-07-19 21:52:26,521 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [593932346] [2020-07-19 21:52:26,521 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 89 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 89 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:52:26,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:26,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 1078 conjuncts, 92 conjunts are in the unsatisfiable core [2020-07-19 21:52:26,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:52:26,706 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:52:27,077 INFO L134 CoverageAnalysis]: Checked inductivity of 27148 backedges. 176 proven. 11660 refuted. 0 times theorem prover too weak. 15312 trivial. 0 not checked. [2020-07-19 21:52:27,078 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:52:27,078 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [93, 93] total 95 [2020-07-19 21:52:27,078 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794800756] [2020-07-19 21:52:27,079 INFO L459 AbstractCegarLoop]: Interpolant automaton has 95 states [2020-07-19 21:52:27,079 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:52:27,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2020-07-19 21:52:27,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=4105, Invalid=4825, Unknown=0, NotChecked=0, Total=8930 [2020-07-19 21:52:27,080 INFO L87 Difference]: Start difference. First operand 629 states and 629 transitions. Second operand 95 states. [2020-07-19 21:52:29,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:52:29,585 INFO L93 Difference]: Finished difference Result 639 states and 639 transitions. [2020-07-19 21:52:29,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2020-07-19 21:52:29,586 INFO L78 Accepts]: Start accepts. Automaton has 95 states. Word has length 626 [2020-07-19 21:52:29,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:52:29,589 INFO L225 Difference]: With dead ends: 639 [2020-07-19 21:52:29,589 INFO L226 Difference]: Without dead ends: 637 [2020-07-19 21:52:29,590 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 897 GetRequests, 803 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 353 ImplicationChecksByTransitivity, 7.6s TimeCoverageRelationStatistics Valid=4111, Invalid=5009, Unknown=0, NotChecked=0, Total=9120 [2020-07-19 21:52:29,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 637 states. [2020-07-19 21:52:29,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 637 to 636. [2020-07-19 21:52:29,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 636 states. [2020-07-19 21:52:29,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 636 transitions. [2020-07-19 21:52:29,603 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 636 transitions. Word has length 626 [2020-07-19 21:52:29,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:52:29,604 INFO L479 AbstractCegarLoop]: Abstraction has 636 states and 636 transitions. [2020-07-19 21:52:29,604 INFO L480 AbstractCegarLoop]: Interpolant automaton has 95 states. [2020-07-19 21:52:29,604 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 636 transitions. [2020-07-19 21:52:29,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 634 [2020-07-19 21:52:29,610 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:52:29,610 INFO L422 BasicCegarLoop]: trace histogram [90, 90, 90, 89, 89, 89, 89, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:52:29,823 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88,89 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:52:29,824 INFO L427 AbstractCegarLoop]: === Iteration 90 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:52:29,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:52:29,825 INFO L82 PathProgramCache]: Analyzing trace with hash -203355256, now seen corresponding path program 89 times [2020-07-19 21:52:29,825 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:52:29,825 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250057852] [2020-07-19 21:52:29,826 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:52:29,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:37,858 INFO L134 CoverageAnalysis]: Checked inductivity of 27768 backedges. 178 proven. 11926 refuted. 0 times theorem prover too weak. 15664 trivial. 0 not checked. [2020-07-19 21:52:37,859 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250057852] [2020-07-19 21:52:37,859 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1723456256] [2020-07-19 21:52:37,859 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 90 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 90 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:52:38,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:38,023 INFO L263 TraceCheckSpWp]: Trace formula consists of 1090 conjuncts, 93 conjunts are in the unsatisfiable core [2020-07-19 21:52:38,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:52:38,064 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:52:38,481 INFO L134 CoverageAnalysis]: Checked inductivity of 27768 backedges. 178 proven. 11926 refuted. 0 times theorem prover too weak. 15664 trivial. 0 not checked. [2020-07-19 21:52:38,482 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:52:38,482 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [94, 94] total 96 [2020-07-19 21:52:38,482 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084843527] [2020-07-19 21:52:38,483 INFO L459 AbstractCegarLoop]: Interpolant automaton has 96 states [2020-07-19 21:52:38,484 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:52:38,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2020-07-19 21:52:38,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=4196, Invalid=4924, Unknown=0, NotChecked=0, Total=9120 [2020-07-19 21:52:38,485 INFO L87 Difference]: Start difference. First operand 636 states and 636 transitions. Second operand 96 states. [2020-07-19 21:52:41,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:52:41,008 INFO L93 Difference]: Finished difference Result 646 states and 646 transitions. [2020-07-19 21:52:41,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2020-07-19 21:52:41,009 INFO L78 Accepts]: Start accepts. Automaton has 96 states. Word has length 633 [2020-07-19 21:52:41,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:52:41,013 INFO L225 Difference]: With dead ends: 646 [2020-07-19 21:52:41,013 INFO L226 Difference]: Without dead ends: 644 [2020-07-19 21:52:41,014 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 907 GetRequests, 812 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 357 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=4202, Invalid=5110, Unknown=0, NotChecked=0, Total=9312 [2020-07-19 21:52:41,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 644 states. [2020-07-19 21:52:41,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 644 to 643. [2020-07-19 21:52:41,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 643 states. [2020-07-19 21:52:41,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 643 transitions. [2020-07-19 21:52:41,026 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 643 transitions. Word has length 633 [2020-07-19 21:52:41,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:52:41,027 INFO L479 AbstractCegarLoop]: Abstraction has 643 states and 643 transitions. [2020-07-19 21:52:41,027 INFO L480 AbstractCegarLoop]: Interpolant automaton has 96 states. [2020-07-19 21:52:41,027 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 643 transitions. [2020-07-19 21:52:41,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 641 [2020-07-19 21:52:41,033 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:52:41,033 INFO L422 BasicCegarLoop]: trace histogram [91, 91, 91, 90, 90, 90, 90, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:52:41,246 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89,90 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:52:41,247 INFO L427 AbstractCegarLoop]: === Iteration 91 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:52:41,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:52:41,248 INFO L82 PathProgramCache]: Analyzing trace with hash 1529781973, now seen corresponding path program 90 times [2020-07-19 21:52:41,248 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:52:41,248 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57084766] [2020-07-19 21:52:41,249 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:52:41,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:49,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:49,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:49,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:49,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:49,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:49,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:49,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:49,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:49,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:49,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:49,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:49,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:49,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:49,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:49,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:49,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:49,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:49,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:49,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:49,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:49,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:49,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:49,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:49,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:49,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:49,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:49,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:49,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:49,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:49,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:49,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:49,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:49,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:49,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:49,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:49,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:49,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:49,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:49,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:49,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:49,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:49,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:49,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:49,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:49,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:49,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:49,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:49,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:49,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:49,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:49,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:49,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:50,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:50,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:50,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:50,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:50,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:50,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:50,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:50,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:50,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:50,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:50,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:50,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:50,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:50,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:50,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:50,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:50,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:50,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:50,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:50,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:50,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:50,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:50,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:50,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:50,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:50,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:50,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:50,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:50,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:50,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:50,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:50,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:50,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:50,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:50,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:50,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:50,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:50,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:50,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:50,214 INFO L134 CoverageAnalysis]: Checked inductivity of 28395 backedges. 180 proven. 12195 refuted. 0 times theorem prover too weak. 16020 trivial. 0 not checked. [2020-07-19 21:52:50,215 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57084766] [2020-07-19 21:52:50,215 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1240503650] [2020-07-19 21:52:50,215 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 91 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 91 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:52:50,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:52:50,375 INFO L263 TraceCheckSpWp]: Trace formula consists of 1102 conjuncts, 94 conjunts are in the unsatisfiable core [2020-07-19 21:52:50,382 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:52:50,417 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:52:50,834 INFO L134 CoverageAnalysis]: Checked inductivity of 28395 backedges. 180 proven. 12195 refuted. 0 times theorem prover too weak. 16020 trivial. 0 not checked. [2020-07-19 21:52:50,834 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:52:50,834 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [95, 95] total 97 [2020-07-19 21:52:50,835 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669159783] [2020-07-19 21:52:50,835 INFO L459 AbstractCegarLoop]: Interpolant automaton has 97 states [2020-07-19 21:52:50,835 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:52:50,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2020-07-19 21:52:50,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=4288, Invalid=5024, Unknown=0, NotChecked=0, Total=9312 [2020-07-19 21:52:50,837 INFO L87 Difference]: Start difference. First operand 643 states and 643 transitions. Second operand 97 states. [2020-07-19 21:52:53,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:52:53,586 INFO L93 Difference]: Finished difference Result 653 states and 653 transitions. [2020-07-19 21:52:53,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2020-07-19 21:52:53,588 INFO L78 Accepts]: Start accepts. Automaton has 97 states. Word has length 640 [2020-07-19 21:52:53,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:52:53,591 INFO L225 Difference]: With dead ends: 653 [2020-07-19 21:52:53,591 INFO L226 Difference]: Without dead ends: 651 [2020-07-19 21:52:53,592 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 917 GetRequests, 821 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 361 ImplicationChecksByTransitivity, 8.9s TimeCoverageRelationStatistics Valid=4294, Invalid=5212, Unknown=0, NotChecked=0, Total=9506 [2020-07-19 21:52:53,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 651 states. [2020-07-19 21:52:53,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 651 to 650. [2020-07-19 21:52:53,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 650 states. [2020-07-19 21:52:53,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 650 transitions. [2020-07-19 21:52:53,604 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 650 transitions. Word has length 640 [2020-07-19 21:52:53,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:52:53,604 INFO L479 AbstractCegarLoop]: Abstraction has 650 states and 650 transitions. [2020-07-19 21:52:53,604 INFO L480 AbstractCegarLoop]: Interpolant automaton has 97 states. [2020-07-19 21:52:53,604 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 650 transitions. [2020-07-19 21:52:53,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 648 [2020-07-19 21:52:53,608 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:52:53,609 INFO L422 BasicCegarLoop]: trace histogram [92, 92, 92, 91, 91, 91, 91, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:52:53,810 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90,91 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:52:53,811 INFO L427 AbstractCegarLoop]: === Iteration 92 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:52:53,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:52:53,812 INFO L82 PathProgramCache]: Analyzing trace with hash 515910376, now seen corresponding path program 91 times [2020-07-19 21:52:53,813 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:52:53,813 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111927903] [2020-07-19 21:52:53,814 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:52:53,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,410 INFO L134 CoverageAnalysis]: Checked inductivity of 29029 backedges. 182 proven. 12467 refuted. 0 times theorem prover too weak. 16380 trivial. 0 not checked. [2020-07-19 21:53:02,411 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111927903] [2020-07-19 21:53:02,411 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1749669241] [2020-07-19 21:53:02,411 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 92 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 92 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:53:02,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:02,594 INFO L263 TraceCheckSpWp]: Trace formula consists of 1114 conjuncts, 95 conjunts are in the unsatisfiable core [2020-07-19 21:53:02,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:53:02,621 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:53:02,986 INFO L134 CoverageAnalysis]: Checked inductivity of 29029 backedges. 182 proven. 12467 refuted. 0 times theorem prover too weak. 16380 trivial. 0 not checked. [2020-07-19 21:53:02,987 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:53:02,987 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96] total 98 [2020-07-19 21:53:02,987 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441044247] [2020-07-19 21:53:02,988 INFO L459 AbstractCegarLoop]: Interpolant automaton has 98 states [2020-07-19 21:53:02,988 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:53:02,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants. [2020-07-19 21:53:02,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=4381, Invalid=5125, Unknown=0, NotChecked=0, Total=9506 [2020-07-19 21:53:02,990 INFO L87 Difference]: Start difference. First operand 650 states and 650 transitions. Second operand 98 states. [2020-07-19 21:53:05,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:53:05,635 INFO L93 Difference]: Finished difference Result 660 states and 660 transitions. [2020-07-19 21:53:05,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2020-07-19 21:53:05,636 INFO L78 Accepts]: Start accepts. Automaton has 98 states. Word has length 647 [2020-07-19 21:53:05,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:53:05,639 INFO L225 Difference]: With dead ends: 660 [2020-07-19 21:53:05,640 INFO L226 Difference]: Without dead ends: 658 [2020-07-19 21:53:05,641 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 927 GetRequests, 830 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 365 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=4387, Invalid=5315, Unknown=0, NotChecked=0, Total=9702 [2020-07-19 21:53:05,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2020-07-19 21:53:05,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 657. [2020-07-19 21:53:05,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 657 states. [2020-07-19 21:53:05,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 657 transitions. [2020-07-19 21:53:05,652 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 657 transitions. Word has length 647 [2020-07-19 21:53:05,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:53:05,652 INFO L479 AbstractCegarLoop]: Abstraction has 657 states and 657 transitions. [2020-07-19 21:53:05,652 INFO L480 AbstractCegarLoop]: Interpolant automaton has 98 states. [2020-07-19 21:53:05,652 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 657 transitions. [2020-07-19 21:53:05,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 655 [2020-07-19 21:53:05,656 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:53:05,656 INFO L422 BasicCegarLoop]: trace histogram [93, 93, 93, 92, 92, 92, 92, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:53:05,858 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91,92 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:53:05,858 INFO L427 AbstractCegarLoop]: === Iteration 93 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:53:05,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:53:05,859 INFO L82 PathProgramCache]: Analyzing trace with hash 1078948725, now seen corresponding path program 92 times [2020-07-19 21:53:05,860 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:53:05,860 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702968910] [2020-07-19 21:53:05,860 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:53:05,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:14,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:15,083 INFO L134 CoverageAnalysis]: Checked inductivity of 29670 backedges. 184 proven. 12742 refuted. 0 times theorem prover too weak. 16744 trivial. 0 not checked. [2020-07-19 21:53:15,083 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702968910] [2020-07-19 21:53:15,084 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [602891928] [2020-07-19 21:53:15,084 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 93 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 93 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:53:15,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:15,254 INFO L263 TraceCheckSpWp]: Trace formula consists of 1126 conjuncts, 96 conjunts are in the unsatisfiable core [2020-07-19 21:53:15,261 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:53:15,283 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:53:15,699 INFO L134 CoverageAnalysis]: Checked inductivity of 29670 backedges. 184 proven. 12742 refuted. 0 times theorem prover too weak. 16744 trivial. 0 not checked. [2020-07-19 21:53:15,700 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:53:15,700 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [97, 97] total 99 [2020-07-19 21:53:15,700 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552307066] [2020-07-19 21:53:15,701 INFO L459 AbstractCegarLoop]: Interpolant automaton has 99 states [2020-07-19 21:53:15,701 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:53:15,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 99 interpolants. [2020-07-19 21:53:15,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=4475, Invalid=5227, Unknown=0, NotChecked=0, Total=9702 [2020-07-19 21:53:15,703 INFO L87 Difference]: Start difference. First operand 657 states and 657 transitions. Second operand 99 states. [2020-07-19 21:53:19,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:53:19,080 INFO L93 Difference]: Finished difference Result 667 states and 667 transitions. [2020-07-19 21:53:19,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2020-07-19 21:53:19,082 INFO L78 Accepts]: Start accepts. Automaton has 99 states. Word has length 654 [2020-07-19 21:53:19,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:53:19,087 INFO L225 Difference]: With dead ends: 667 [2020-07-19 21:53:19,087 INFO L226 Difference]: Without dead ends: 665 [2020-07-19 21:53:19,088 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 937 GetRequests, 839 SyntacticMatches, 0 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 369 ImplicationChecksByTransitivity, 9.0s TimeCoverageRelationStatistics Valid=4481, Invalid=5419, Unknown=0, NotChecked=0, Total=9900 [2020-07-19 21:53:19,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2020-07-19 21:53:19,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 664. [2020-07-19 21:53:19,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 664 states. [2020-07-19 21:53:19,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 664 states to 664 states and 664 transitions. [2020-07-19 21:53:19,100 INFO L78 Accepts]: Start accepts. Automaton has 664 states and 664 transitions. Word has length 654 [2020-07-19 21:53:19,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:53:19,101 INFO L479 AbstractCegarLoop]: Abstraction has 664 states and 664 transitions. [2020-07-19 21:53:19,101 INFO L480 AbstractCegarLoop]: Interpolant automaton has 99 states. [2020-07-19 21:53:19,101 INFO L276 IsEmpty]: Start isEmpty. Operand 664 states and 664 transitions. [2020-07-19 21:53:19,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 662 [2020-07-19 21:53:19,107 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:53:19,108 INFO L422 BasicCegarLoop]: trace histogram [94, 94, 94, 93, 93, 93, 93, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:53:19,308 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92,93 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:53:19,309 INFO L427 AbstractCegarLoop]: === Iteration 94 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:53:19,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:53:19,310 INFO L82 PathProgramCache]: Analyzing trace with hash -1685790136, now seen corresponding path program 93 times [2020-07-19 21:53:19,310 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:53:19,310 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402152927] [2020-07-19 21:53:19,311 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:53:19,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,586 INFO L134 CoverageAnalysis]: Checked inductivity of 30318 backedges. 186 proven. 13020 refuted. 0 times theorem prover too weak. 17112 trivial. 0 not checked. [2020-07-19 21:53:29,586 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402152927] [2020-07-19 21:53:29,586 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1434845673] [2020-07-19 21:53:29,587 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 94 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 94 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:53:29,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:29,756 INFO L263 TraceCheckSpWp]: Trace formula consists of 1138 conjuncts, 97 conjunts are in the unsatisfiable core [2020-07-19 21:53:29,763 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:53:29,783 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:53:30,210 INFO L134 CoverageAnalysis]: Checked inductivity of 30318 backedges. 186 proven. 13020 refuted. 0 times theorem prover too weak. 17112 trivial. 0 not checked. [2020-07-19 21:53:30,211 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:53:30,211 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [98, 98] total 100 [2020-07-19 21:53:30,211 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106301449] [2020-07-19 21:53:30,212 INFO L459 AbstractCegarLoop]: Interpolant automaton has 100 states [2020-07-19 21:53:30,212 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:53:30,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 100 interpolants. [2020-07-19 21:53:30,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=4570, Invalid=5330, Unknown=0, NotChecked=0, Total=9900 [2020-07-19 21:53:30,213 INFO L87 Difference]: Start difference. First operand 664 states and 664 transitions. Second operand 100 states. [2020-07-19 21:53:34,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:53:34,094 INFO L93 Difference]: Finished difference Result 674 states and 674 transitions. [2020-07-19 21:53:34,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2020-07-19 21:53:34,096 INFO L78 Accepts]: Start accepts. Automaton has 100 states. Word has length 661 [2020-07-19 21:53:34,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:53:34,099 INFO L225 Difference]: With dead ends: 674 [2020-07-19 21:53:34,100 INFO L226 Difference]: Without dead ends: 672 [2020-07-19 21:53:34,101 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 947 GetRequests, 848 SyntacticMatches, 0 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 373 ImplicationChecksByTransitivity, 10.1s TimeCoverageRelationStatistics Valid=4576, Invalid=5524, Unknown=0, NotChecked=0, Total=10100 [2020-07-19 21:53:34,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 672 states. [2020-07-19 21:53:34,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 672 to 671. [2020-07-19 21:53:34,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 671 states. [2020-07-19 21:53:34,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 671 states to 671 states and 671 transitions. [2020-07-19 21:53:34,114 INFO L78 Accepts]: Start accepts. Automaton has 671 states and 671 transitions. Word has length 661 [2020-07-19 21:53:34,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:53:34,115 INFO L479 AbstractCegarLoop]: Abstraction has 671 states and 671 transitions. [2020-07-19 21:53:34,115 INFO L480 AbstractCegarLoop]: Interpolant automaton has 100 states. [2020-07-19 21:53:34,115 INFO L276 IsEmpty]: Start isEmpty. Operand 671 states and 671 transitions. [2020-07-19 21:53:34,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 669 [2020-07-19 21:53:34,122 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:53:34,122 INFO L422 BasicCegarLoop]: trace histogram [95, 95, 95, 94, 94, 94, 94, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:53:34,333 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93,94 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:53:34,334 INFO L427 AbstractCegarLoop]: === Iteration 95 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:53:34,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:53:34,335 INFO L82 PathProgramCache]: Analyzing trace with hash -1970294763, now seen corresponding path program 94 times [2020-07-19 21:53:34,335 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:53:34,335 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557543663] [2020-07-19 21:53:34,336 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:53:34,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:43,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:43,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:43,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:43,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:43,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:43,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:43,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:43,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:43,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:43,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:43,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:43,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:43,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:43,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:43,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:43,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:43,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:43,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:43,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:43,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:43,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:43,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:43,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:43,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:43,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:43,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:44,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:44,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:44,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:44,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:44,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:44,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:44,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:44,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:44,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:44,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:44,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:44,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:44,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:44,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:44,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:44,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:44,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:44,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:44,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:44,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:44,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:44,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:44,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:44,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:44,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:44,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:44,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:44,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:44,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:44,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:44,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:44,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:44,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:44,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:44,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:44,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:44,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:44,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:44,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:44,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:44,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:44,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:44,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:44,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:44,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:44,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:44,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:44,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:44,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:44,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:44,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:44,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:44,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:44,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:44,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:44,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:44,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:44,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:44,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:44,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:44,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:44,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:44,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:44,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:44,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:44,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:44,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:44,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:44,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:44,320 INFO L134 CoverageAnalysis]: Checked inductivity of 30973 backedges. 188 proven. 13301 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2020-07-19 21:53:44,321 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557543663] [2020-07-19 21:53:44,321 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [76589297] [2020-07-19 21:53:44,321 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 95 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 95 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:53:44,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:44,487 INFO L263 TraceCheckSpWp]: Trace formula consists of 1150 conjuncts, 98 conjunts are in the unsatisfiable core [2020-07-19 21:53:44,492 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:53:44,519 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:53:44,930 INFO L134 CoverageAnalysis]: Checked inductivity of 30973 backedges. 188 proven. 13301 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2020-07-19 21:53:44,930 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:53:44,931 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [99, 99] total 101 [2020-07-19 21:53:44,931 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244333618] [2020-07-19 21:53:44,931 INFO L459 AbstractCegarLoop]: Interpolant automaton has 101 states [2020-07-19 21:53:44,931 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:53:44,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 101 interpolants. [2020-07-19 21:53:44,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=4666, Invalid=5434, Unknown=0, NotChecked=0, Total=10100 [2020-07-19 21:53:44,933 INFO L87 Difference]: Start difference. First operand 671 states and 671 transitions. Second operand 101 states. [2020-07-19 21:53:48,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:53:48,663 INFO L93 Difference]: Finished difference Result 681 states and 681 transitions. [2020-07-19 21:53:48,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2020-07-19 21:53:48,665 INFO L78 Accepts]: Start accepts. Automaton has 101 states. Word has length 668 [2020-07-19 21:53:48,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:53:48,668 INFO L225 Difference]: With dead ends: 681 [2020-07-19 21:53:48,668 INFO L226 Difference]: Without dead ends: 679 [2020-07-19 21:53:48,669 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 957 GetRequests, 857 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 377 ImplicationChecksByTransitivity, 9.8s TimeCoverageRelationStatistics Valid=4672, Invalid=5630, Unknown=0, NotChecked=0, Total=10302 [2020-07-19 21:53:48,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 679 states. [2020-07-19 21:53:48,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 679 to 678. [2020-07-19 21:53:48,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 678 states. [2020-07-19 21:53:48,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678 states to 678 states and 678 transitions. [2020-07-19 21:53:48,683 INFO L78 Accepts]: Start accepts. Automaton has 678 states and 678 transitions. Word has length 668 [2020-07-19 21:53:48,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:53:48,684 INFO L479 AbstractCegarLoop]: Abstraction has 678 states and 678 transitions. [2020-07-19 21:53:48,684 INFO L480 AbstractCegarLoop]: Interpolant automaton has 101 states. [2020-07-19 21:53:48,684 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states and 678 transitions. [2020-07-19 21:53:48,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 676 [2020-07-19 21:53:48,688 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:53:48,688 INFO L422 BasicCegarLoop]: trace histogram [96, 96, 96, 95, 95, 95, 95, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:53:48,891 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94,95 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:53:48,891 INFO L427 AbstractCegarLoop]: === Iteration 96 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:53:48,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:53:48,892 INFO L82 PathProgramCache]: Analyzing trace with hash -58379864, now seen corresponding path program 95 times [2020-07-19 21:53:48,892 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:53:48,892 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650374806] [2020-07-19 21:53:48,893 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:53:48,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,489 INFO L134 CoverageAnalysis]: Checked inductivity of 31635 backedges. 190 proven. 13585 refuted. 0 times theorem prover too weak. 17860 trivial. 0 not checked. [2020-07-19 21:53:59,490 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650374806] [2020-07-19 21:53:59,490 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1176326541] [2020-07-19 21:53:59,490 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 96 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 96 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:53:59,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:53:59,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 1162 conjuncts, 99 conjunts are in the unsatisfiable core [2020-07-19 21:53:59,663 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:53:59,695 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:54:00,138 INFO L134 CoverageAnalysis]: Checked inductivity of 31635 backedges. 190 proven. 13585 refuted. 0 times theorem prover too weak. 17860 trivial. 0 not checked. [2020-07-19 21:54:00,138 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:54:00,139 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [100, 100] total 102 [2020-07-19 21:54:00,139 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825623232] [2020-07-19 21:54:00,139 INFO L459 AbstractCegarLoop]: Interpolant automaton has 102 states [2020-07-19 21:54:00,140 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:54:00,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 102 interpolants. [2020-07-19 21:54:00,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=4763, Invalid=5539, Unknown=0, NotChecked=0, Total=10302 [2020-07-19 21:54:00,141 INFO L87 Difference]: Start difference. First operand 678 states and 678 transitions. Second operand 102 states. [2020-07-19 21:54:04,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:54:04,345 INFO L93 Difference]: Finished difference Result 688 states and 688 transitions. [2020-07-19 21:54:04,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2020-07-19 21:54:04,347 INFO L78 Accepts]: Start accepts. Automaton has 102 states. Word has length 675 [2020-07-19 21:54:04,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:54:04,351 INFO L225 Difference]: With dead ends: 688 [2020-07-19 21:54:04,351 INFO L226 Difference]: Without dead ends: 686 [2020-07-19 21:54:04,352 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 967 GetRequests, 866 SyntacticMatches, 0 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 381 ImplicationChecksByTransitivity, 10.4s TimeCoverageRelationStatistics Valid=4769, Invalid=5737, Unknown=0, NotChecked=0, Total=10506 [2020-07-19 21:54:04,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states. [2020-07-19 21:54:04,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 685. [2020-07-19 21:54:04,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 685 states. [2020-07-19 21:54:04,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 685 states to 685 states and 685 transitions. [2020-07-19 21:54:04,362 INFO L78 Accepts]: Start accepts. Automaton has 685 states and 685 transitions. Word has length 675 [2020-07-19 21:54:04,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:54:04,363 INFO L479 AbstractCegarLoop]: Abstraction has 685 states and 685 transitions. [2020-07-19 21:54:04,363 INFO L480 AbstractCegarLoop]: Interpolant automaton has 102 states. [2020-07-19 21:54:04,363 INFO L276 IsEmpty]: Start isEmpty. Operand 685 states and 685 transitions. [2020-07-19 21:54:04,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 683 [2020-07-19 21:54:04,367 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:54:04,368 INFO L422 BasicCegarLoop]: trace histogram [97, 97, 97, 96, 96, 96, 96, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:54:04,568 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95,96 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:54:04,569 INFO L427 AbstractCegarLoop]: === Iteration 97 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:54:04,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:54:04,569 INFO L82 PathProgramCache]: Analyzing trace with hash 2061063349, now seen corresponding path program 96 times [2020-07-19 21:54:04,570 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:54:04,570 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56895941] [2020-07-19 21:54:04,570 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:54:04,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,730 INFO L134 CoverageAnalysis]: Checked inductivity of 32304 backedges. 192 proven. 13872 refuted. 0 times theorem prover too weak. 18240 trivial. 0 not checked. [2020-07-19 21:54:15,730 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56895941] [2020-07-19 21:54:15,731 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1816171299] [2020-07-19 21:54:15,731 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 97 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 97 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:54:15,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:15,904 INFO L263 TraceCheckSpWp]: Trace formula consists of 1174 conjuncts, 100 conjunts are in the unsatisfiable core [2020-07-19 21:54:15,910 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:54:15,937 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:54:16,447 INFO L134 CoverageAnalysis]: Checked inductivity of 32304 backedges. 192 proven. 13872 refuted. 0 times theorem prover too weak. 18240 trivial. 0 not checked. [2020-07-19 21:54:16,447 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:54:16,447 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [101, 101] total 103 [2020-07-19 21:54:16,448 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105222689] [2020-07-19 21:54:16,448 INFO L459 AbstractCegarLoop]: Interpolant automaton has 103 states [2020-07-19 21:54:16,448 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:54:16,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 103 interpolants. [2020-07-19 21:54:16,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=4861, Invalid=5645, Unknown=0, NotChecked=0, Total=10506 [2020-07-19 21:54:16,449 INFO L87 Difference]: Start difference. First operand 685 states and 685 transitions. Second operand 103 states. [2020-07-19 21:54:21,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:54:21,085 INFO L93 Difference]: Finished difference Result 695 states and 695 transitions. [2020-07-19 21:54:21,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2020-07-19 21:54:21,087 INFO L78 Accepts]: Start accepts. Automaton has 103 states. Word has length 682 [2020-07-19 21:54:21,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:54:21,090 INFO L225 Difference]: With dead ends: 695 [2020-07-19 21:54:21,091 INFO L226 Difference]: Without dead ends: 693 [2020-07-19 21:54:21,092 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 977 GetRequests, 875 SyntacticMatches, 0 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 385 ImplicationChecksByTransitivity, 10.9s TimeCoverageRelationStatistics Valid=4867, Invalid=5845, Unknown=0, NotChecked=0, Total=10712 [2020-07-19 21:54:21,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2020-07-19 21:54:21,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 692. [2020-07-19 21:54:21,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 692 states. [2020-07-19 21:54:21,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 692 transitions. [2020-07-19 21:54:21,106 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 692 transitions. Word has length 682 [2020-07-19 21:54:21,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:54:21,107 INFO L479 AbstractCegarLoop]: Abstraction has 692 states and 692 transitions. [2020-07-19 21:54:21,107 INFO L480 AbstractCegarLoop]: Interpolant automaton has 103 states. [2020-07-19 21:54:21,107 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 692 transitions. [2020-07-19 21:54:21,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 690 [2020-07-19 21:54:21,114 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:54:21,115 INFO L422 BasicCegarLoop]: trace histogram [98, 98, 98, 97, 97, 97, 97, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:54:21,329 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 97 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable96 [2020-07-19 21:54:21,329 INFO L427 AbstractCegarLoop]: === Iteration 98 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:54:21,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:54:21,329 INFO L82 PathProgramCache]: Analyzing trace with hash 93788424, now seen corresponding path program 97 times [2020-07-19 21:54:21,329 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:54:21,330 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949262657] [2020-07-19 21:54:21,330 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:54:21,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:32,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:33,155 INFO L134 CoverageAnalysis]: Checked inductivity of 32980 backedges. 194 proven. 14162 refuted. 0 times theorem prover too weak. 18624 trivial. 0 not checked. [2020-07-19 21:54:33,156 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949262657] [2020-07-19 21:54:33,156 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1187495665] [2020-07-19 21:54:33,156 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 98 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 98 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:54:33,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:33,326 INFO L263 TraceCheckSpWp]: Trace formula consists of 1186 conjuncts, 101 conjunts are in the unsatisfiable core [2020-07-19 21:54:33,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:54:33,353 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:54:33,832 INFO L134 CoverageAnalysis]: Checked inductivity of 32980 backedges. 194 proven. 14162 refuted. 0 times theorem prover too weak. 18624 trivial. 0 not checked. [2020-07-19 21:54:33,832 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:54:33,832 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [102, 102] total 104 [2020-07-19 21:54:33,832 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222482679] [2020-07-19 21:54:33,833 INFO L459 AbstractCegarLoop]: Interpolant automaton has 104 states [2020-07-19 21:54:33,833 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:54:33,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 104 interpolants. [2020-07-19 21:54:33,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=4960, Invalid=5752, Unknown=0, NotChecked=0, Total=10712 [2020-07-19 21:54:33,834 INFO L87 Difference]: Start difference. First operand 692 states and 692 transitions. Second operand 104 states. [2020-07-19 21:54:38,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:54:38,485 INFO L93 Difference]: Finished difference Result 702 states and 702 transitions. [2020-07-19 21:54:38,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2020-07-19 21:54:38,486 INFO L78 Accepts]: Start accepts. Automaton has 104 states. Word has length 689 [2020-07-19 21:54:38,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:54:38,490 INFO L225 Difference]: With dead ends: 702 [2020-07-19 21:54:38,491 INFO L226 Difference]: Without dead ends: 700 [2020-07-19 21:54:38,492 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 987 GetRequests, 884 SyntacticMatches, 0 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 389 ImplicationChecksByTransitivity, 11.7s TimeCoverageRelationStatistics Valid=4966, Invalid=5954, Unknown=0, NotChecked=0, Total=10920 [2020-07-19 21:54:38,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2020-07-19 21:54:38,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 699. [2020-07-19 21:54:38,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 699 states. [2020-07-19 21:54:38,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 699 transitions. [2020-07-19 21:54:38,503 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 699 transitions. Word has length 689 [2020-07-19 21:54:38,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:54:38,504 INFO L479 AbstractCegarLoop]: Abstraction has 699 states and 699 transitions. [2020-07-19 21:54:38,504 INFO L480 AbstractCegarLoop]: Interpolant automaton has 104 states. [2020-07-19 21:54:38,504 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 699 transitions. [2020-07-19 21:54:38,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 697 [2020-07-19 21:54:38,508 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:54:38,508 INFO L422 BasicCegarLoop]: trace histogram [99, 99, 99, 98, 98, 98, 98, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:54:38,709 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97,98 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:54:38,710 INFO L427 AbstractCegarLoop]: === Iteration 99 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:54:38,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:54:38,710 INFO L82 PathProgramCache]: Analyzing trace with hash 1888903509, now seen corresponding path program 98 times [2020-07-19 21:54:38,711 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:54:38,711 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904244495] [2020-07-19 21:54:38,711 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:54:38,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,632 INFO L134 CoverageAnalysis]: Checked inductivity of 33663 backedges. 196 proven. 14455 refuted. 0 times theorem prover too weak. 19012 trivial. 0 not checked. [2020-07-19 21:54:50,632 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904244495] [2020-07-19 21:54:50,632 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1638899420] [2020-07-19 21:54:50,632 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 99 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 99 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:54:50,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:54:50,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 1198 conjuncts, 102 conjunts are in the unsatisfiable core [2020-07-19 21:54:50,814 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:54:50,834 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:54:51,320 INFO L134 CoverageAnalysis]: Checked inductivity of 33663 backedges. 196 proven. 14455 refuted. 0 times theorem prover too weak. 19012 trivial. 0 not checked. [2020-07-19 21:54:51,321 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:54:51,321 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [103, 103] total 105 [2020-07-19 21:54:51,321 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550236124] [2020-07-19 21:54:51,322 INFO L459 AbstractCegarLoop]: Interpolant automaton has 105 states [2020-07-19 21:54:51,322 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:54:51,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 105 interpolants. [2020-07-19 21:54:51,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5060, Invalid=5860, Unknown=0, NotChecked=0, Total=10920 [2020-07-19 21:54:51,323 INFO L87 Difference]: Start difference. First operand 699 states and 699 transitions. Second operand 105 states. [2020-07-19 21:54:55,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:54:55,765 INFO L93 Difference]: Finished difference Result 709 states and 709 transitions. [2020-07-19 21:54:55,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2020-07-19 21:54:55,766 INFO L78 Accepts]: Start accepts. Automaton has 105 states. Word has length 696 [2020-07-19 21:54:55,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:54:55,771 INFO L225 Difference]: With dead ends: 709 [2020-07-19 21:54:55,771 INFO L226 Difference]: Without dead ends: 707 [2020-07-19 21:54:55,772 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 997 GetRequests, 893 SyntacticMatches, 0 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 393 ImplicationChecksByTransitivity, 11.8s TimeCoverageRelationStatistics Valid=5066, Invalid=6064, Unknown=0, NotChecked=0, Total=11130 [2020-07-19 21:54:55,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2020-07-19 21:54:55,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 706. [2020-07-19 21:54:55,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 706 states. [2020-07-19 21:54:55,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 706 transitions. [2020-07-19 21:54:55,786 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 706 transitions. Word has length 696 [2020-07-19 21:54:55,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:54:55,787 INFO L479 AbstractCegarLoop]: Abstraction has 706 states and 706 transitions. [2020-07-19 21:54:55,787 INFO L480 AbstractCegarLoop]: Interpolant automaton has 105 states. [2020-07-19 21:54:55,787 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 706 transitions. [2020-07-19 21:54:55,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 704 [2020-07-19 21:54:55,794 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:54:55,794 INFO L422 BasicCegarLoop]: trace histogram [100, 100, 100, 99, 99, 99, 99, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:54:56,005 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98,99 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:54:56,006 INFO L427 AbstractCegarLoop]: === Iteration 100 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:54:56,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:54:56,007 INFO L82 PathProgramCache]: Analyzing trace with hash 202414184, now seen corresponding path program 99 times [2020-07-19 21:54:56,007 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:54:56,007 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417829845] [2020-07-19 21:54:56,008 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:54:56,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,490 INFO L134 CoverageAnalysis]: Checked inductivity of 34353 backedges. 198 proven. 14751 refuted. 0 times theorem prover too weak. 19404 trivial. 0 not checked. [2020-07-19 21:55:08,491 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417829845] [2020-07-19 21:55:08,491 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1013648068] [2020-07-19 21:55:08,491 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 100 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 100 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:55:08,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:08,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 1210 conjuncts, 103 conjunts are in the unsatisfiable core [2020-07-19 21:55:08,676 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:55:08,697 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:55:09,222 INFO L134 CoverageAnalysis]: Checked inductivity of 34353 backedges. 198 proven. 14751 refuted. 0 times theorem prover too weak. 19404 trivial. 0 not checked. [2020-07-19 21:55:09,223 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:55:09,223 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [104, 104] total 106 [2020-07-19 21:55:09,223 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763307355] [2020-07-19 21:55:09,224 INFO L459 AbstractCegarLoop]: Interpolant automaton has 106 states [2020-07-19 21:55:09,224 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:55:09,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 106 interpolants. [2020-07-19 21:55:09,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5161, Invalid=5969, Unknown=0, NotChecked=0, Total=11130 [2020-07-19 21:55:09,225 INFO L87 Difference]: Start difference. First operand 706 states and 706 transitions. Second operand 106 states. [2020-07-19 21:55:14,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:55:14,154 INFO L93 Difference]: Finished difference Result 716 states and 716 transitions. [2020-07-19 21:55:14,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2020-07-19 21:55:14,156 INFO L78 Accepts]: Start accepts. Automaton has 106 states. Word has length 703 [2020-07-19 21:55:14,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:55:14,160 INFO L225 Difference]: With dead ends: 716 [2020-07-19 21:55:14,160 INFO L226 Difference]: Without dead ends: 714 [2020-07-19 21:55:14,162 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1007 GetRequests, 902 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 397 ImplicationChecksByTransitivity, 12.4s TimeCoverageRelationStatistics Valid=5167, Invalid=6175, Unknown=0, NotChecked=0, Total=11342 [2020-07-19 21:55:14,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 714 states. [2020-07-19 21:55:14,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 714 to 713. [2020-07-19 21:55:14,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 713 states. [2020-07-19 21:55:14,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 713 states to 713 states and 713 transitions. [2020-07-19 21:55:14,177 INFO L78 Accepts]: Start accepts. Automaton has 713 states and 713 transitions. Word has length 703 [2020-07-19 21:55:14,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:55:14,178 INFO L479 AbstractCegarLoop]: Abstraction has 713 states and 713 transitions. [2020-07-19 21:55:14,178 INFO L480 AbstractCegarLoop]: Interpolant automaton has 106 states. [2020-07-19 21:55:14,178 INFO L276 IsEmpty]: Start isEmpty. Operand 713 states and 713 transitions. [2020-07-19 21:55:14,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 711 [2020-07-19 21:55:14,186 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:55:14,187 INFO L422 BasicCegarLoop]: trace histogram [101, 101, 101, 100, 100, 100, 100, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:55:14,400 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 100 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable99 [2020-07-19 21:55:14,401 INFO L427 AbstractCegarLoop]: === Iteration 101 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:55:14,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:55:14,401 INFO L82 PathProgramCache]: Analyzing trace with hash -1984899595, now seen corresponding path program 100 times [2020-07-19 21:55:14,402 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:55:14,402 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171110021] [2020-07-19 21:55:14,402 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:55:14,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:27,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:28,001 INFO L134 CoverageAnalysis]: Checked inductivity of 35050 backedges. 200 proven. 15050 refuted. 0 times theorem prover too weak. 19800 trivial. 0 not checked. [2020-07-19 21:55:28,002 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171110021] [2020-07-19 21:55:28,002 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [168030596] [2020-07-19 21:55:28,002 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 101 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 101 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:55:28,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:28,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 1222 conjuncts, 104 conjunts are in the unsatisfiable core [2020-07-19 21:55:28,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:55:28,211 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:55:28,736 INFO L134 CoverageAnalysis]: Checked inductivity of 35050 backedges. 200 proven. 15050 refuted. 0 times theorem prover too weak. 19800 trivial. 0 not checked. [2020-07-19 21:55:28,736 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:55:28,736 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [105, 105] total 107 [2020-07-19 21:55:28,737 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799716848] [2020-07-19 21:55:28,737 INFO L459 AbstractCegarLoop]: Interpolant automaton has 107 states [2020-07-19 21:55:28,737 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:55:28,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 107 interpolants. [2020-07-19 21:55:28,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5263, Invalid=6079, Unknown=0, NotChecked=0, Total=11342 [2020-07-19 21:55:28,739 INFO L87 Difference]: Start difference. First operand 713 states and 713 transitions. Second operand 107 states. [2020-07-19 21:55:34,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:55:34,472 INFO L93 Difference]: Finished difference Result 723 states and 723 transitions. [2020-07-19 21:55:34,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2020-07-19 21:55:34,473 INFO L78 Accepts]: Start accepts. Automaton has 107 states. Word has length 710 [2020-07-19 21:55:34,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:55:34,476 INFO L225 Difference]: With dead ends: 723 [2020-07-19 21:55:34,477 INFO L226 Difference]: Without dead ends: 721 [2020-07-19 21:55:34,478 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1017 GetRequests, 911 SyntacticMatches, 0 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 401 ImplicationChecksByTransitivity, 13.5s TimeCoverageRelationStatistics Valid=5269, Invalid=6287, Unknown=0, NotChecked=0, Total=11556 [2020-07-19 21:55:34,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 721 states. [2020-07-19 21:55:34,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 721 to 720. [2020-07-19 21:55:34,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 720 states. [2020-07-19 21:55:34,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 720 states to 720 states and 720 transitions. [2020-07-19 21:55:34,490 INFO L78 Accepts]: Start accepts. Automaton has 720 states and 720 transitions. Word has length 710 [2020-07-19 21:55:34,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:55:34,491 INFO L479 AbstractCegarLoop]: Abstraction has 720 states and 720 transitions. [2020-07-19 21:55:34,491 INFO L480 AbstractCegarLoop]: Interpolant automaton has 107 states. [2020-07-19 21:55:34,491 INFO L276 IsEmpty]: Start isEmpty. Operand 720 states and 720 transitions. [2020-07-19 21:55:34,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 718 [2020-07-19 21:55:34,498 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:55:34,499 INFO L422 BasicCegarLoop]: trace histogram [102, 102, 102, 101, 101, 101, 101, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:55:34,700 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 101 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable100 [2020-07-19 21:55:34,701 INFO L427 AbstractCegarLoop]: === Iteration 102 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:55:34,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:55:34,702 INFO L82 PathProgramCache]: Analyzing trace with hash 1455927240, now seen corresponding path program 101 times [2020-07-19 21:55:34,702 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:55:34,702 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738682213] [2020-07-19 21:55:34,703 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:55:34,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:47,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:47,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:47,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:47,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:47,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:47,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:47,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:47,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:47,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:47,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:47,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:47,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:47,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:47,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:47,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:47,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:47,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:47,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:47,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:47,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:47,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:47,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:47,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:47,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:47,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:47,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:47,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:47,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:47,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:47,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:47,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:47,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:47,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:47,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:47,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:47,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:47,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:47,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:47,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:47,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:47,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:47,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:47,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:47,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:47,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:47,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:47,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:47,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:47,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:47,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:47,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:47,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:47,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:47,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:47,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:47,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:47,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:47,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:47,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:47,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:47,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:47,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:47,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:47,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:47,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:47,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:47,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:47,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:47,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:48,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:48,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:48,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:48,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:48,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:48,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:48,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:48,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:48,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:48,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:48,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:48,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:48,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:48,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:48,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:48,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:48,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:48,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:48,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:48,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:48,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:48,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:48,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:48,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:48,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:48,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:48,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:48,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:48,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:48,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:48,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:48,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:48,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:48,354 INFO L134 CoverageAnalysis]: Checked inductivity of 35754 backedges. 202 proven. 15352 refuted. 0 times theorem prover too weak. 20200 trivial. 0 not checked. [2020-07-19 21:55:48,355 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738682213] [2020-07-19 21:55:48,355 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1842671778] [2020-07-19 21:55:48,355 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 102 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 102 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:55:48,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:55:48,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 1234 conjuncts, 105 conjunts are in the unsatisfiable core [2020-07-19 21:55:48,547 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:55:48,599 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:55:49,099 INFO L134 CoverageAnalysis]: Checked inductivity of 35754 backedges. 202 proven. 15352 refuted. 0 times theorem prover too weak. 20200 trivial. 0 not checked. [2020-07-19 21:55:49,100 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:55:49,100 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [106, 106] total 108 [2020-07-19 21:55:49,100 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890711198] [2020-07-19 21:55:49,101 INFO L459 AbstractCegarLoop]: Interpolant automaton has 108 states [2020-07-19 21:55:49,101 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:55:49,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 108 interpolants. [2020-07-19 21:55:49,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5366, Invalid=6190, Unknown=0, NotChecked=0, Total=11556 [2020-07-19 21:55:49,102 INFO L87 Difference]: Start difference. First operand 720 states and 720 transitions. Second operand 108 states. [2020-07-19 21:55:54,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:55:54,047 INFO L93 Difference]: Finished difference Result 730 states and 730 transitions. [2020-07-19 21:55:54,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2020-07-19 21:55:54,048 INFO L78 Accepts]: Start accepts. Automaton has 108 states. Word has length 717 [2020-07-19 21:55:54,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:55:54,049 INFO L225 Difference]: With dead ends: 730 [2020-07-19 21:55:54,050 INFO L226 Difference]: Without dead ends: 728 [2020-07-19 21:55:54,050 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1027 GetRequests, 920 SyntacticMatches, 0 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 405 ImplicationChecksByTransitivity, 13.4s TimeCoverageRelationStatistics Valid=5372, Invalid=6400, Unknown=0, NotChecked=0, Total=11772 [2020-07-19 21:55:54,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states. [2020-07-19 21:55:54,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 727. [2020-07-19 21:55:54,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 727 states. [2020-07-19 21:55:54,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 727 states to 727 states and 727 transitions. [2020-07-19 21:55:54,066 INFO L78 Accepts]: Start accepts. Automaton has 727 states and 727 transitions. Word has length 717 [2020-07-19 21:55:54,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:55:54,067 INFO L479 AbstractCegarLoop]: Abstraction has 727 states and 727 transitions. [2020-07-19 21:55:54,067 INFO L480 AbstractCegarLoop]: Interpolant automaton has 108 states. [2020-07-19 21:55:54,067 INFO L276 IsEmpty]: Start isEmpty. Operand 727 states and 727 transitions. [2020-07-19 21:55:54,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 725 [2020-07-19 21:55:54,074 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:55:54,074 INFO L422 BasicCegarLoop]: trace histogram [103, 103, 103, 102, 102, 102, 102, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:55:54,288 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 102 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable101 [2020-07-19 21:55:54,289 INFO L427 AbstractCegarLoop]: === Iteration 103 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:55:54,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:55:54,290 INFO L82 PathProgramCache]: Analyzing trace with hash 1116910229, now seen corresponding path program 102 times [2020-07-19 21:55:54,290 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:55:54,290 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381212418] [2020-07-19 21:55:54,291 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:55:54,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:07,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:07,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:07,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:07,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:07,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:07,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,363 INFO L134 CoverageAnalysis]: Checked inductivity of 36465 backedges. 204 proven. 15657 refuted. 0 times theorem prover too weak. 20604 trivial. 0 not checked. [2020-07-19 21:56:08,363 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381212418] [2020-07-19 21:56:08,364 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1399873534] [2020-07-19 21:56:08,364 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 103 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 103 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:56:08,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:08,551 INFO L263 TraceCheckSpWp]: Trace formula consists of 1246 conjuncts, 106 conjunts are in the unsatisfiable core [2020-07-19 21:56:08,557 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:56:08,578 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:56:09,143 INFO L134 CoverageAnalysis]: Checked inductivity of 36465 backedges. 204 proven. 15657 refuted. 0 times theorem prover too weak. 20604 trivial. 0 not checked. [2020-07-19 21:56:09,144 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:56:09,144 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [107, 107] total 109 [2020-07-19 21:56:09,144 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826961772] [2020-07-19 21:56:09,145 INFO L459 AbstractCegarLoop]: Interpolant automaton has 109 states [2020-07-19 21:56:09,145 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:56:09,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 109 interpolants. [2020-07-19 21:56:09,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5470, Invalid=6302, Unknown=0, NotChecked=0, Total=11772 [2020-07-19 21:56:09,146 INFO L87 Difference]: Start difference. First operand 727 states and 727 transitions. Second operand 109 states. [2020-07-19 21:56:15,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:56:15,356 INFO L93 Difference]: Finished difference Result 737 states and 737 transitions. [2020-07-19 21:56:15,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2020-07-19 21:56:15,358 INFO L78 Accepts]: Start accepts. Automaton has 109 states. Word has length 724 [2020-07-19 21:56:15,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:56:15,361 INFO L225 Difference]: With dead ends: 737 [2020-07-19 21:56:15,361 INFO L226 Difference]: Without dead ends: 735 [2020-07-19 21:56:15,362 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1037 GetRequests, 929 SyntacticMatches, 0 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 409 ImplicationChecksByTransitivity, 14.0s TimeCoverageRelationStatistics Valid=5476, Invalid=6514, Unknown=0, NotChecked=0, Total=11990 [2020-07-19 21:56:15,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2020-07-19 21:56:15,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 734. [2020-07-19 21:56:15,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 734 states. [2020-07-19 21:56:15,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 734 states to 734 states and 734 transitions. [2020-07-19 21:56:15,376 INFO L78 Accepts]: Start accepts. Automaton has 734 states and 734 transitions. Word has length 724 [2020-07-19 21:56:15,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:56:15,377 INFO L479 AbstractCegarLoop]: Abstraction has 734 states and 734 transitions. [2020-07-19 21:56:15,378 INFO L480 AbstractCegarLoop]: Interpolant automaton has 109 states. [2020-07-19 21:56:15,378 INFO L276 IsEmpty]: Start isEmpty. Operand 734 states and 734 transitions. [2020-07-19 21:56:15,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 732 [2020-07-19 21:56:15,385 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:56:15,385 INFO L422 BasicCegarLoop]: trace histogram [104, 104, 104, 103, 103, 103, 103, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:56:15,600 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 103 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable102 [2020-07-19 21:56:15,600 INFO L427 AbstractCegarLoop]: === Iteration 104 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:56:15,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:56:15,601 INFO L82 PathProgramCache]: Analyzing trace with hash 2115133224, now seen corresponding path program 103 times [2020-07-19 21:56:15,601 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:56:15,601 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301915099] [2020-07-19 21:56:15,602 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:56:15,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:30,836 INFO L134 CoverageAnalysis]: Checked inductivity of 37183 backedges. 206 proven. 15965 refuted. 0 times theorem prover too weak. 21012 trivial. 0 not checked. [2020-07-19 21:56:30,836 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301915099] [2020-07-19 21:56:30,836 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [825559396] [2020-07-19 21:56:30,836 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 104 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 104 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:56:31,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:31,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 1258 conjuncts, 107 conjunts are in the unsatisfiable core [2020-07-19 21:56:31,026 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:56:31,048 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:56:31,601 INFO L134 CoverageAnalysis]: Checked inductivity of 37183 backedges. 206 proven. 15965 refuted. 0 times theorem prover too weak. 21012 trivial. 0 not checked. [2020-07-19 21:56:31,602 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:56:31,602 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [108, 108] total 110 [2020-07-19 21:56:31,602 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078725215] [2020-07-19 21:56:31,603 INFO L459 AbstractCegarLoop]: Interpolant automaton has 110 states [2020-07-19 21:56:31,603 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:56:31,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 110 interpolants. [2020-07-19 21:56:31,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5575, Invalid=6415, Unknown=0, NotChecked=0, Total=11990 [2020-07-19 21:56:31,604 INFO L87 Difference]: Start difference. First operand 734 states and 734 transitions. Second operand 110 states. [2020-07-19 21:56:37,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:56:37,228 INFO L93 Difference]: Finished difference Result 744 states and 744 transitions. [2020-07-19 21:56:37,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2020-07-19 21:56:37,230 INFO L78 Accepts]: Start accepts. Automaton has 110 states. Word has length 731 [2020-07-19 21:56:37,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:56:37,232 INFO L225 Difference]: With dead ends: 744 [2020-07-19 21:56:37,233 INFO L226 Difference]: Without dead ends: 742 [2020-07-19 21:56:37,234 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1047 GetRequests, 938 SyntacticMatches, 0 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 413 ImplicationChecksByTransitivity, 15.1s TimeCoverageRelationStatistics Valid=5581, Invalid=6629, Unknown=0, NotChecked=0, Total=12210 [2020-07-19 21:56:37,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 742 states. [2020-07-19 21:56:37,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 742 to 741. [2020-07-19 21:56:37,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 741 states. [2020-07-19 21:56:37,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 741 states to 741 states and 741 transitions. [2020-07-19 21:56:37,250 INFO L78 Accepts]: Start accepts. Automaton has 741 states and 741 transitions. Word has length 731 [2020-07-19 21:56:37,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:56:37,251 INFO L479 AbstractCegarLoop]: Abstraction has 741 states and 741 transitions. [2020-07-19 21:56:37,251 INFO L480 AbstractCegarLoop]: Interpolant automaton has 110 states. [2020-07-19 21:56:37,251 INFO L276 IsEmpty]: Start isEmpty. Operand 741 states and 741 transitions. [2020-07-19 21:56:37,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 739 [2020-07-19 21:56:37,258 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:56:37,259 INFO L422 BasicCegarLoop]: trace histogram [105, 105, 105, 104, 104, 104, 104, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:56:37,472 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 104 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable103 [2020-07-19 21:56:37,473 INFO L427 AbstractCegarLoop]: === Iteration 105 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:56:37,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:56:37,473 INFO L82 PathProgramCache]: Analyzing trace with hash 371586869, now seen corresponding path program 104 times [2020-07-19 21:56:37,474 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:56:37,474 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663136594] [2020-07-19 21:56:37,474 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:56:37,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:52,885 INFO L134 CoverageAnalysis]: Checked inductivity of 37908 backedges. 208 proven. 16276 refuted. 0 times theorem prover too weak. 21424 trivial. 0 not checked. [2020-07-19 21:56:52,886 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663136594] [2020-07-19 21:56:52,886 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1486809335] [2020-07-19 21:56:52,886 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 105 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 105 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:56:53,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:56:53,069 INFO L263 TraceCheckSpWp]: Trace formula consists of 1270 conjuncts, 108 conjunts are in the unsatisfiable core [2020-07-19 21:56:53,074 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:56:53,100 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:56:53,680 INFO L134 CoverageAnalysis]: Checked inductivity of 37908 backedges. 208 proven. 16276 refuted. 0 times theorem prover too weak. 21424 trivial. 0 not checked. [2020-07-19 21:56:53,680 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:56:53,680 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [109, 109] total 111 [2020-07-19 21:56:53,681 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550372470] [2020-07-19 21:56:53,681 INFO L459 AbstractCegarLoop]: Interpolant automaton has 111 states [2020-07-19 21:56:53,681 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:56:53,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 111 interpolants. [2020-07-19 21:56:53,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5681, Invalid=6529, Unknown=0, NotChecked=0, Total=12210 [2020-07-19 21:56:53,683 INFO L87 Difference]: Start difference. First operand 741 states and 741 transitions. Second operand 111 states. [2020-07-19 21:56:59,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:56:59,462 INFO L93 Difference]: Finished difference Result 751 states and 751 transitions. [2020-07-19 21:56:59,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 110 states. [2020-07-19 21:56:59,465 INFO L78 Accepts]: Start accepts. Automaton has 111 states. Word has length 738 [2020-07-19 21:56:59,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:56:59,468 INFO L225 Difference]: With dead ends: 751 [2020-07-19 21:56:59,468 INFO L226 Difference]: Without dead ends: 749 [2020-07-19 21:56:59,469 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1057 GetRequests, 947 SyntacticMatches, 0 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 417 ImplicationChecksByTransitivity, 15.3s TimeCoverageRelationStatistics Valid=5687, Invalid=6745, Unknown=0, NotChecked=0, Total=12432 [2020-07-19 21:56:59,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 749 states. [2020-07-19 21:56:59,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 749 to 748. [2020-07-19 21:56:59,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 748 states. [2020-07-19 21:56:59,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 748 states to 748 states and 748 transitions. [2020-07-19 21:56:59,482 INFO L78 Accepts]: Start accepts. Automaton has 748 states and 748 transitions. Word has length 738 [2020-07-19 21:56:59,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:56:59,482 INFO L479 AbstractCegarLoop]: Abstraction has 748 states and 748 transitions. [2020-07-19 21:56:59,483 INFO L480 AbstractCegarLoop]: Interpolant automaton has 111 states. [2020-07-19 21:56:59,483 INFO L276 IsEmpty]: Start isEmpty. Operand 748 states and 748 transitions. [2020-07-19 21:56:59,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 746 [2020-07-19 21:56:59,490 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:56:59,490 INFO L422 BasicCegarLoop]: trace histogram [106, 106, 106, 105, 105, 105, 105, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:56:59,691 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 105 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable104 [2020-07-19 21:56:59,691 INFO L427 AbstractCegarLoop]: === Iteration 106 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:56:59,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:56:59,692 INFO L82 PathProgramCache]: Analyzing trace with hash -876173688, now seen corresponding path program 105 times [2020-07-19 21:56:59,692 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:56:59,692 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912650884] [2020-07-19 21:56:59,693 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:56:59,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,776 INFO L134 CoverageAnalysis]: Checked inductivity of 38640 backedges. 210 proven. 16590 refuted. 0 times theorem prover too weak. 21840 trivial. 0 not checked. [2020-07-19 21:57:15,777 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912650884] [2020-07-19 21:57:15,777 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [832615355] [2020-07-19 21:57:15,777 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 106 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 106 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:57:15,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:15,970 INFO L263 TraceCheckSpWp]: Trace formula consists of 1282 conjuncts, 109 conjunts are in the unsatisfiable core [2020-07-19 21:57:15,976 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:57:15,998 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:57:16,590 INFO L134 CoverageAnalysis]: Checked inductivity of 38640 backedges. 210 proven. 16590 refuted. 0 times theorem prover too weak. 21840 trivial. 0 not checked. [2020-07-19 21:57:16,590 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:57:16,590 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [110, 110] total 112 [2020-07-19 21:57:16,590 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132974592] [2020-07-19 21:57:16,591 INFO L459 AbstractCegarLoop]: Interpolant automaton has 112 states [2020-07-19 21:57:16,591 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:57:16,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 112 interpolants. [2020-07-19 21:57:16,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5788, Invalid=6644, Unknown=0, NotChecked=0, Total=12432 [2020-07-19 21:57:16,593 INFO L87 Difference]: Start difference. First operand 748 states and 748 transitions. Second operand 112 states. [2020-07-19 21:57:22,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:57:22,704 INFO L93 Difference]: Finished difference Result 758 states and 758 transitions. [2020-07-19 21:57:22,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2020-07-19 21:57:22,706 INFO L78 Accepts]: Start accepts. Automaton has 112 states. Word has length 745 [2020-07-19 21:57:22,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:57:22,709 INFO L225 Difference]: With dead ends: 758 [2020-07-19 21:57:22,709 INFO L226 Difference]: Without dead ends: 756 [2020-07-19 21:57:22,710 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1067 GetRequests, 956 SyntacticMatches, 0 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 421 ImplicationChecksByTransitivity, 16.0s TimeCoverageRelationStatistics Valid=5794, Invalid=6862, Unknown=0, NotChecked=0, Total=12656 [2020-07-19 21:57:22,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 756 states. [2020-07-19 21:57:22,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 756 to 755. [2020-07-19 21:57:22,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 755 states. [2020-07-19 21:57:22,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 755 states to 755 states and 755 transitions. [2020-07-19 21:57:22,721 INFO L78 Accepts]: Start accepts. Automaton has 755 states and 755 transitions. Word has length 745 [2020-07-19 21:57:22,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:57:22,721 INFO L479 AbstractCegarLoop]: Abstraction has 755 states and 755 transitions. [2020-07-19 21:57:22,722 INFO L480 AbstractCegarLoop]: Interpolant automaton has 112 states. [2020-07-19 21:57:22,722 INFO L276 IsEmpty]: Start isEmpty. Operand 755 states and 755 transitions. [2020-07-19 21:57:22,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 753 [2020-07-19 21:57:22,726 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:57:22,726 INFO L422 BasicCegarLoop]: trace histogram [107, 107, 107, 106, 106, 106, 106, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:57:22,927 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 106 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable105 [2020-07-19 21:57:22,928 INFO L427 AbstractCegarLoop]: === Iteration 107 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:57:22,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:57:22,928 INFO L82 PathProgramCache]: Analyzing trace with hash 500474837, now seen corresponding path program 106 times [2020-07-19 21:57:22,929 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:57:22,929 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848719506] [2020-07-19 21:57:22,929 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:57:22,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:39,928 INFO L134 CoverageAnalysis]: Checked inductivity of 39379 backedges. 212 proven. 16907 refuted. 0 times theorem prover too weak. 22260 trivial. 0 not checked. [2020-07-19 21:57:39,928 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848719506] [2020-07-19 21:57:39,929 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [110309264] [2020-07-19 21:57:39,929 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 107 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 107 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:57:40,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:57:40,123 INFO L263 TraceCheckSpWp]: Trace formula consists of 1294 conjuncts, 110 conjunts are in the unsatisfiable core [2020-07-19 21:57:40,129 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:57:40,150 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:57:40,738 INFO L134 CoverageAnalysis]: Checked inductivity of 39379 backedges. 212 proven. 16907 refuted. 0 times theorem prover too weak. 22260 trivial. 0 not checked. [2020-07-19 21:57:40,739 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:57:40,739 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [111, 111] total 113 [2020-07-19 21:57:40,739 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87152222] [2020-07-19 21:57:40,740 INFO L459 AbstractCegarLoop]: Interpolant automaton has 113 states [2020-07-19 21:57:40,740 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:57:40,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 113 interpolants. [2020-07-19 21:57:40,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5896, Invalid=6760, Unknown=0, NotChecked=0, Total=12656 [2020-07-19 21:57:40,741 INFO L87 Difference]: Start difference. First operand 755 states and 755 transitions. Second operand 113 states. [2020-07-19 21:57:46,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:57:46,158 INFO L93 Difference]: Finished difference Result 765 states and 765 transitions. [2020-07-19 21:57:46,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2020-07-19 21:57:46,159 INFO L78 Accepts]: Start accepts. Automaton has 113 states. Word has length 752 [2020-07-19 21:57:46,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:57:46,163 INFO L225 Difference]: With dead ends: 765 [2020-07-19 21:57:46,163 INFO L226 Difference]: Without dead ends: 763 [2020-07-19 21:57:46,164 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1077 GetRequests, 965 SyntacticMatches, 0 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 425 ImplicationChecksByTransitivity, 16.9s TimeCoverageRelationStatistics Valid=5902, Invalid=6980, Unknown=0, NotChecked=0, Total=12882 [2020-07-19 21:57:46,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 763 states. [2020-07-19 21:57:46,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 763 to 762. [2020-07-19 21:57:46,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 762 states. [2020-07-19 21:57:46,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 762 states to 762 states and 762 transitions. [2020-07-19 21:57:46,179 INFO L78 Accepts]: Start accepts. Automaton has 762 states and 762 transitions. Word has length 752 [2020-07-19 21:57:46,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:57:46,180 INFO L479 AbstractCegarLoop]: Abstraction has 762 states and 762 transitions. [2020-07-19 21:57:46,180 INFO L480 AbstractCegarLoop]: Interpolant automaton has 113 states. [2020-07-19 21:57:46,180 INFO L276 IsEmpty]: Start isEmpty. Operand 762 states and 762 transitions. [2020-07-19 21:57:46,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 760 [2020-07-19 21:57:46,187 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:57:46,188 INFO L422 BasicCegarLoop]: trace histogram [108, 108, 108, 107, 107, 107, 107, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:57:46,401 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106,107 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:57:46,402 INFO L427 AbstractCegarLoop]: === Iteration 108 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:57:46,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:57:46,403 INFO L82 PathProgramCache]: Analyzing trace with hash -1690663448, now seen corresponding path program 107 times [2020-07-19 21:57:46,403 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:57:46,403 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276436210] [2020-07-19 21:57:46,403 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:57:46,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,740 INFO L134 CoverageAnalysis]: Checked inductivity of 40125 backedges. 214 proven. 17227 refuted. 0 times theorem prover too weak. 22684 trivial. 0 not checked. [2020-07-19 21:58:03,740 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276436210] [2020-07-19 21:58:03,741 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [396494202] [2020-07-19 21:58:03,741 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 108 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 108 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:58:03,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:03,934 INFO L263 TraceCheckSpWp]: Trace formula consists of 1306 conjuncts, 111 conjunts are in the unsatisfiable core [2020-07-19 21:58:03,939 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:58:03,960 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:58:04,572 INFO L134 CoverageAnalysis]: Checked inductivity of 40125 backedges. 214 proven. 17227 refuted. 0 times theorem prover too weak. 22684 trivial. 0 not checked. [2020-07-19 21:58:04,573 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:58:04,573 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [112, 112] total 114 [2020-07-19 21:58:04,573 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400882854] [2020-07-19 21:58:04,574 INFO L459 AbstractCegarLoop]: Interpolant automaton has 114 states [2020-07-19 21:58:04,574 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:58:04,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 114 interpolants. [2020-07-19 21:58:04,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6005, Invalid=6877, Unknown=0, NotChecked=0, Total=12882 [2020-07-19 21:58:04,575 INFO L87 Difference]: Start difference. First operand 762 states and 762 transitions. Second operand 114 states. [2020-07-19 21:58:09,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:58:09,736 INFO L93 Difference]: Finished difference Result 772 states and 772 transitions. [2020-07-19 21:58:09,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2020-07-19 21:58:09,739 INFO L78 Accepts]: Start accepts. Automaton has 114 states. Word has length 759 [2020-07-19 21:58:09,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:58:09,743 INFO L225 Difference]: With dead ends: 772 [2020-07-19 21:58:09,743 INFO L226 Difference]: Without dead ends: 770 [2020-07-19 21:58:09,744 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1087 GetRequests, 974 SyntacticMatches, 0 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 429 ImplicationChecksByTransitivity, 17.2s TimeCoverageRelationStatistics Valid=6011, Invalid=7099, Unknown=0, NotChecked=0, Total=13110 [2020-07-19 21:58:09,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 770 states. [2020-07-19 21:58:09,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 770 to 769. [2020-07-19 21:58:09,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 769 states. [2020-07-19 21:58:09,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 769 states to 769 states and 769 transitions. [2020-07-19 21:58:09,754 INFO L78 Accepts]: Start accepts. Automaton has 769 states and 769 transitions. Word has length 759 [2020-07-19 21:58:09,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:58:09,754 INFO L479 AbstractCegarLoop]: Abstraction has 769 states and 769 transitions. [2020-07-19 21:58:09,754 INFO L480 AbstractCegarLoop]: Interpolant automaton has 114 states. [2020-07-19 21:58:09,754 INFO L276 IsEmpty]: Start isEmpty. Operand 769 states and 769 transitions. [2020-07-19 21:58:09,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 767 [2020-07-19 21:58:09,759 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:58:09,760 INFO L422 BasicCegarLoop]: trace histogram [109, 109, 109, 108, 108, 108, 108, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:58:09,961 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 108 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable107 [2020-07-19 21:58:09,962 INFO L427 AbstractCegarLoop]: === Iteration 109 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:58:09,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:58:09,963 INFO L82 PathProgramCache]: Analyzing trace with hash -1316439947, now seen corresponding path program 108 times [2020-07-19 21:58:09,963 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:58:09,964 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828914792] [2020-07-19 21:58:09,964 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:58:10,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,672 INFO L134 CoverageAnalysis]: Checked inductivity of 40878 backedges. 216 proven. 17550 refuted. 0 times theorem prover too weak. 23112 trivial. 0 not checked. [2020-07-19 21:58:21,672 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828914792] [2020-07-19 21:58:21,672 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1191471799] [2020-07-19 21:58:21,672 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 109 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 109 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:58:21,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:21,846 INFO L263 TraceCheckSpWp]: Trace formula consists of 1318 conjuncts, 112 conjunts are in the unsatisfiable core [2020-07-19 21:58:21,851 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:58:21,871 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:58:22,339 INFO L134 CoverageAnalysis]: Checked inductivity of 40878 backedges. 216 proven. 17550 refuted. 0 times theorem prover too weak. 23112 trivial. 0 not checked. [2020-07-19 21:58:22,339 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:58:22,339 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [113, 113] total 115 [2020-07-19 21:58:22,340 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902155166] [2020-07-19 21:58:22,340 INFO L459 AbstractCegarLoop]: Interpolant automaton has 115 states [2020-07-19 21:58:22,340 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:58:22,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 115 interpolants. [2020-07-19 21:58:22,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6115, Invalid=6995, Unknown=0, NotChecked=0, Total=13110 [2020-07-19 21:58:22,341 INFO L87 Difference]: Start difference. First operand 769 states and 769 transitions. Second operand 115 states. [2020-07-19 21:58:25,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:58:25,200 INFO L93 Difference]: Finished difference Result 779 states and 779 transitions. [2020-07-19 21:58:25,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2020-07-19 21:58:25,202 INFO L78 Accepts]: Start accepts. Automaton has 115 states. Word has length 766 [2020-07-19 21:58:25,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:58:25,204 INFO L225 Difference]: With dead ends: 779 [2020-07-19 21:58:25,205 INFO L226 Difference]: Without dead ends: 777 [2020-07-19 21:58:25,206 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1097 GetRequests, 983 SyntacticMatches, 0 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 11.5s TimeCoverageRelationStatistics Valid=6121, Invalid=7219, Unknown=0, NotChecked=0, Total=13340 [2020-07-19 21:58:25,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 777 states. [2020-07-19 21:58:25,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 777 to 776. [2020-07-19 21:58:25,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 776 states. [2020-07-19 21:58:25,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 776 states to 776 states and 776 transitions. [2020-07-19 21:58:25,217 INFO L78 Accepts]: Start accepts. Automaton has 776 states and 776 transitions. Word has length 766 [2020-07-19 21:58:25,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:58:25,217 INFO L479 AbstractCegarLoop]: Abstraction has 776 states and 776 transitions. [2020-07-19 21:58:25,218 INFO L480 AbstractCegarLoop]: Interpolant automaton has 115 states. [2020-07-19 21:58:25,218 INFO L276 IsEmpty]: Start isEmpty. Operand 776 states and 776 transitions. [2020-07-19 21:58:25,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 774 [2020-07-19 21:58:25,223 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:58:25,224 INFO L422 BasicCegarLoop]: trace histogram [110, 110, 110, 109, 109, 109, 109, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:58:25,436 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108,109 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:58:25,437 INFO L427 AbstractCegarLoop]: === Iteration 110 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:58:25,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:58:25,437 INFO L82 PathProgramCache]: Analyzing trace with hash -1186726584, now seen corresponding path program 109 times [2020-07-19 21:58:25,437 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:58:25,437 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508539350] [2020-07-19 21:58:25,437 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:58:25,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:35,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:35,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:35,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:35,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:35,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:35,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:35,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:35,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:35,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:35,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:35,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:35,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:35,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:35,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:35,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:35,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:35,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:35,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:35,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:35,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:35,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:35,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:35,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:35,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:35,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:35,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:35,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:35,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:35,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:35,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:35,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:35,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:35,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:35,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:35,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:35,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:35,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:35,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:35,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:35,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:35,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:35,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:35,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:35,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:35,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:35,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:35,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:35,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:35,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:35,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:35,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:35,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:35,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:35,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:35,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:35,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:35,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:35,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:35,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:35,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:35,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:35,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:35,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:35,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:35,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:35,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:35,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:35,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:35,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:35,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:35,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:35,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:35,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:35,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:35,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:35,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:35,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:35,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:35,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:35,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:35,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:35,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:35,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:35,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:36,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:36,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:36,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:36,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:36,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:36,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:36,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:36,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:36,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:36,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:36,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:36,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:36,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:36,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:36,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:36,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:36,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:36,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:36,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:36,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:36,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:36,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:36,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:36,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:36,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:36,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:36,288 INFO L134 CoverageAnalysis]: Checked inductivity of 41638 backedges. 218 proven. 17876 refuted. 0 times theorem prover too weak. 23544 trivial. 0 not checked. [2020-07-19 21:58:36,288 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508539350] [2020-07-19 21:58:36,288 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1057074063] [2020-07-19 21:58:36,288 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 110 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 110 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:58:36,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:36,461 INFO L263 TraceCheckSpWp]: Trace formula consists of 1330 conjuncts, 113 conjunts are in the unsatisfiable core [2020-07-19 21:58:36,466 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:58:36,486 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:58:36,919 INFO L134 CoverageAnalysis]: Checked inductivity of 41638 backedges. 218 proven. 17876 refuted. 0 times theorem prover too weak. 23544 trivial. 0 not checked. [2020-07-19 21:58:36,919 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:58:36,919 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [114, 114] total 116 [2020-07-19 21:58:36,920 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035481528] [2020-07-19 21:58:36,920 INFO L459 AbstractCegarLoop]: Interpolant automaton has 116 states [2020-07-19 21:58:36,920 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:58:36,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 116 interpolants. [2020-07-19 21:58:36,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6226, Invalid=7114, Unknown=0, NotChecked=0, Total=13340 [2020-07-19 21:58:36,921 INFO L87 Difference]: Start difference. First operand 776 states and 776 transitions. Second operand 116 states. [2020-07-19 21:58:39,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:58:39,667 INFO L93 Difference]: Finished difference Result 786 states and 786 transitions. [2020-07-19 21:58:39,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 115 states. [2020-07-19 21:58:39,669 INFO L78 Accepts]: Start accepts. Automaton has 116 states. Word has length 773 [2020-07-19 21:58:39,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:58:39,671 INFO L225 Difference]: With dead ends: 786 [2020-07-19 21:58:39,671 INFO L226 Difference]: Without dead ends: 784 [2020-07-19 21:58:39,671 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1107 GetRequests, 992 SyntacticMatches, 0 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 437 ImplicationChecksByTransitivity, 10.6s TimeCoverageRelationStatistics Valid=6232, Invalid=7340, Unknown=0, NotChecked=0, Total=13572 [2020-07-19 21:58:39,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 784 states. [2020-07-19 21:58:39,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 784 to 783. [2020-07-19 21:58:39,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 783 states. [2020-07-19 21:58:39,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 783 states to 783 states and 783 transitions. [2020-07-19 21:58:39,679 INFO L78 Accepts]: Start accepts. Automaton has 783 states and 783 transitions. Word has length 773 [2020-07-19 21:58:39,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:58:39,679 INFO L479 AbstractCegarLoop]: Abstraction has 783 states and 783 transitions. [2020-07-19 21:58:39,679 INFO L480 AbstractCegarLoop]: Interpolant automaton has 116 states. [2020-07-19 21:58:39,679 INFO L276 IsEmpty]: Start isEmpty. Operand 783 states and 783 transitions. [2020-07-19 21:58:39,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 781 [2020-07-19 21:58:39,683 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:58:39,683 INFO L422 BasicCegarLoop]: trace histogram [111, 111, 111, 110, 110, 110, 110, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:58:39,884 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 110 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable109 [2020-07-19 21:58:39,884 INFO L427 AbstractCegarLoop]: === Iteration 111 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:58:39,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:58:39,885 INFO L82 PathProgramCache]: Analyzing trace with hash 128726293, now seen corresponding path program 110 times [2020-07-19 21:58:39,885 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:58:39,885 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108318579] [2020-07-19 21:58:39,886 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:58:39,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:50,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:51,111 INFO L134 CoverageAnalysis]: Checked inductivity of 42405 backedges. 220 proven. 18205 refuted. 0 times theorem prover too weak. 23980 trivial. 0 not checked. [2020-07-19 21:58:51,112 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108318579] [2020-07-19 21:58:51,112 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [346482523] [2020-07-19 21:58:51,112 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 111 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 111 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:58:51,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:58:51,293 INFO L263 TraceCheckSpWp]: Trace formula consists of 1342 conjuncts, 114 conjunts are in the unsatisfiable core [2020-07-19 21:58:51,298 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:58:51,319 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:58:51,803 INFO L134 CoverageAnalysis]: Checked inductivity of 42405 backedges. 220 proven. 18205 refuted. 0 times theorem prover too weak. 23980 trivial. 0 not checked. [2020-07-19 21:58:51,803 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:58:51,803 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [115, 115] total 117 [2020-07-19 21:58:51,803 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806538976] [2020-07-19 21:58:51,804 INFO L459 AbstractCegarLoop]: Interpolant automaton has 117 states [2020-07-19 21:58:51,804 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:58:51,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 117 interpolants. [2020-07-19 21:58:51,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6338, Invalid=7234, Unknown=0, NotChecked=0, Total=13572 [2020-07-19 21:58:51,805 INFO L87 Difference]: Start difference. First operand 783 states and 783 transitions. Second operand 117 states. [2020-07-19 21:58:54,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:58:54,620 INFO L93 Difference]: Finished difference Result 793 states and 793 transitions. [2020-07-19 21:58:54,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 116 states. [2020-07-19 21:58:54,621 INFO L78 Accepts]: Start accepts. Automaton has 117 states. Word has length 780 [2020-07-19 21:58:54,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:58:54,624 INFO L225 Difference]: With dead ends: 793 [2020-07-19 21:58:54,624 INFO L226 Difference]: Without dead ends: 791 [2020-07-19 21:58:54,624 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1117 GetRequests, 1001 SyntacticMatches, 0 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 441 ImplicationChecksByTransitivity, 11.0s TimeCoverageRelationStatistics Valid=6344, Invalid=7462, Unknown=0, NotChecked=0, Total=13806 [2020-07-19 21:58:54,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 791 states. [2020-07-19 21:58:54,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 791 to 790. [2020-07-19 21:58:54,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 790 states. [2020-07-19 21:58:54,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 790 transitions. [2020-07-19 21:58:54,636 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 790 transitions. Word has length 780 [2020-07-19 21:58:54,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:58:54,636 INFO L479 AbstractCegarLoop]: Abstraction has 790 states and 790 transitions. [2020-07-19 21:58:54,636 INFO L480 AbstractCegarLoop]: Interpolant automaton has 117 states. [2020-07-19 21:58:54,637 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 790 transitions. [2020-07-19 21:58:54,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 788 [2020-07-19 21:58:54,642 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:58:54,642 INFO L422 BasicCegarLoop]: trace histogram [112, 112, 112, 111, 111, 111, 111, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:58:54,857 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110,111 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:58:54,858 INFO L427 AbstractCegarLoop]: === Iteration 112 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:58:54,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:58:54,858 INFO L82 PathProgramCache]: Analyzing trace with hash -1002894168, now seen corresponding path program 111 times [2020-07-19 21:58:54,858 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:58:54,858 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854732026] [2020-07-19 21:58:54,858 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:58:54,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,450 INFO L134 CoverageAnalysis]: Checked inductivity of 43179 backedges. 222 proven. 18537 refuted. 0 times theorem prover too weak. 24420 trivial. 0 not checked. [2020-07-19 21:59:06,451 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854732026] [2020-07-19 21:59:06,451 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [114162860] [2020-07-19 21:59:06,451 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 112 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 112 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:59:06,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:06,625 INFO L263 TraceCheckSpWp]: Trace formula consists of 1354 conjuncts, 115 conjunts are in the unsatisfiable core [2020-07-19 21:59:06,629 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:59:06,650 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:59:07,126 INFO L134 CoverageAnalysis]: Checked inductivity of 43179 backedges. 222 proven. 18537 refuted. 0 times theorem prover too weak. 24420 trivial. 0 not checked. [2020-07-19 21:59:07,126 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:59:07,126 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [116, 116] total 118 [2020-07-19 21:59:07,126 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039570223] [2020-07-19 21:59:07,127 INFO L459 AbstractCegarLoop]: Interpolant automaton has 118 states [2020-07-19 21:59:07,127 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:59:07,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 118 interpolants. [2020-07-19 21:59:07,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6451, Invalid=7355, Unknown=0, NotChecked=0, Total=13806 [2020-07-19 21:59:07,128 INFO L87 Difference]: Start difference. First operand 790 states and 790 transitions. Second operand 118 states. [2020-07-19 21:59:10,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:59:10,258 INFO L93 Difference]: Finished difference Result 800 states and 800 transitions. [2020-07-19 21:59:10,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. [2020-07-19 21:59:10,259 INFO L78 Accepts]: Start accepts. Automaton has 118 states. Word has length 787 [2020-07-19 21:59:10,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:59:10,262 INFO L225 Difference]: With dead ends: 800 [2020-07-19 21:59:10,262 INFO L226 Difference]: Without dead ends: 798 [2020-07-19 21:59:10,263 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1127 GetRequests, 1010 SyntacticMatches, 0 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 445 ImplicationChecksByTransitivity, 11.4s TimeCoverageRelationStatistics Valid=6457, Invalid=7585, Unknown=0, NotChecked=0, Total=14042 [2020-07-19 21:59:10,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 798 states. [2020-07-19 21:59:10,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 798 to 797. [2020-07-19 21:59:10,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 797 states. [2020-07-19 21:59:10,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 797 states and 797 transitions. [2020-07-19 21:59:10,272 INFO L78 Accepts]: Start accepts. Automaton has 797 states and 797 transitions. Word has length 787 [2020-07-19 21:59:10,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:59:10,273 INFO L479 AbstractCegarLoop]: Abstraction has 797 states and 797 transitions. [2020-07-19 21:59:10,273 INFO L480 AbstractCegarLoop]: Interpolant automaton has 118 states. [2020-07-19 21:59:10,273 INFO L276 IsEmpty]: Start isEmpty. Operand 797 states and 797 transitions. [2020-07-19 21:59:10,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 795 [2020-07-19 21:59:10,279 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:59:10,279 INFO L422 BasicCegarLoop]: trace histogram [113, 113, 113, 112, 112, 112, 112, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:59:10,479 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 112 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable111 [2020-07-19 21:59:10,480 INFO L427 AbstractCegarLoop]: === Iteration 113 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:59:10,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:59:10,480 INFO L82 PathProgramCache]: Analyzing trace with hash -718726731, now seen corresponding path program 112 times [2020-07-19 21:59:10,480 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:59:10,481 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840214976] [2020-07-19 21:59:10,481 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:59:10,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:21,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:22,232 INFO L134 CoverageAnalysis]: Checked inductivity of 43960 backedges. 224 proven. 18872 refuted. 0 times theorem prover too weak. 24864 trivial. 0 not checked. [2020-07-19 21:59:22,232 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840214976] [2020-07-19 21:59:22,232 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [763867785] [2020-07-19 21:59:22,232 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 113 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 113 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:59:22,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:22,446 INFO L263 TraceCheckSpWp]: Trace formula consists of 1366 conjuncts, 116 conjunts are in the unsatisfiable core [2020-07-19 21:59:22,450 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:59:22,472 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:59:22,958 INFO L134 CoverageAnalysis]: Checked inductivity of 43960 backedges. 224 proven. 18872 refuted. 0 times theorem prover too weak. 24864 trivial. 0 not checked. [2020-07-19 21:59:22,958 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:59:22,959 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [117, 117] total 119 [2020-07-19 21:59:22,959 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147605507] [2020-07-19 21:59:22,959 INFO L459 AbstractCegarLoop]: Interpolant automaton has 119 states [2020-07-19 21:59:22,959 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:59:22,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 119 interpolants. [2020-07-19 21:59:22,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6565, Invalid=7477, Unknown=0, NotChecked=0, Total=14042 [2020-07-19 21:59:22,960 INFO L87 Difference]: Start difference. First operand 797 states and 797 transitions. Second operand 119 states. [2020-07-19 21:59:25,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:59:25,944 INFO L93 Difference]: Finished difference Result 807 states and 807 transitions. [2020-07-19 21:59:25,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2020-07-19 21:59:25,945 INFO L78 Accepts]: Start accepts. Automaton has 119 states. Word has length 794 [2020-07-19 21:59:25,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:59:25,948 INFO L225 Difference]: With dead ends: 807 [2020-07-19 21:59:25,948 INFO L226 Difference]: Without dead ends: 805 [2020-07-19 21:59:25,948 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1137 GetRequests, 1019 SyntacticMatches, 0 SemanticMatches, 118 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 449 ImplicationChecksByTransitivity, 11.6s TimeCoverageRelationStatistics Valid=6571, Invalid=7709, Unknown=0, NotChecked=0, Total=14280 [2020-07-19 21:59:25,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 805 states. [2020-07-19 21:59:25,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 805 to 804. [2020-07-19 21:59:25,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 804 states. [2020-07-19 21:59:25,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 804 states to 804 states and 804 transitions. [2020-07-19 21:59:25,958 INFO L78 Accepts]: Start accepts. Automaton has 804 states and 804 transitions. Word has length 794 [2020-07-19 21:59:25,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:59:25,959 INFO L479 AbstractCegarLoop]: Abstraction has 804 states and 804 transitions. [2020-07-19 21:59:25,959 INFO L480 AbstractCegarLoop]: Interpolant automaton has 119 states. [2020-07-19 21:59:25,959 INFO L276 IsEmpty]: Start isEmpty. Operand 804 states and 804 transitions. [2020-07-19 21:59:25,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 802 [2020-07-19 21:59:25,965 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:59:25,965 INFO L422 BasicCegarLoop]: trace histogram [114, 114, 114, 113, 113, 113, 113, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:59:26,166 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 113 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable112 [2020-07-19 21:59:26,167 INFO L427 AbstractCegarLoop]: === Iteration 114 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:59:26,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:59:26,168 INFO L82 PathProgramCache]: Analyzing trace with hash -1947225080, now seen corresponding path program 113 times [2020-07-19 21:59:26,168 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:59:26,168 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843333799] [2020-07-19 21:59:26,168 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:59:26,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,378 INFO L134 CoverageAnalysis]: Checked inductivity of 44748 backedges. 226 proven. 19210 refuted. 0 times theorem prover too weak. 25312 trivial. 0 not checked. [2020-07-19 21:59:38,379 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843333799] [2020-07-19 21:59:38,379 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [706863838] [2020-07-19 21:59:38,379 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 114 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 114 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:59:38,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:38,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 1378 conjuncts, 117 conjunts are in the unsatisfiable core [2020-07-19 21:59:38,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:59:38,579 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:59:39,088 INFO L134 CoverageAnalysis]: Checked inductivity of 44748 backedges. 226 proven. 19210 refuted. 0 times theorem prover too weak. 25312 trivial. 0 not checked. [2020-07-19 21:59:39,089 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:59:39,089 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [118, 118] total 120 [2020-07-19 21:59:39,089 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133182111] [2020-07-19 21:59:39,090 INFO L459 AbstractCegarLoop]: Interpolant automaton has 120 states [2020-07-19 21:59:39,090 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:59:39,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 120 interpolants. [2020-07-19 21:59:39,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6680, Invalid=7600, Unknown=0, NotChecked=0, Total=14280 [2020-07-19 21:59:39,092 INFO L87 Difference]: Start difference. First operand 804 states and 804 transitions. Second operand 120 states. [2020-07-19 21:59:42,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:59:42,712 INFO L93 Difference]: Finished difference Result 814 states and 814 transitions. [2020-07-19 21:59:42,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2020-07-19 21:59:42,714 INFO L78 Accepts]: Start accepts. Automaton has 120 states. Word has length 801 [2020-07-19 21:59:42,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:59:42,716 INFO L225 Difference]: With dead ends: 814 [2020-07-19 21:59:42,716 INFO L226 Difference]: Without dead ends: 812 [2020-07-19 21:59:42,717 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1147 GetRequests, 1028 SyntacticMatches, 0 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 453 ImplicationChecksByTransitivity, 12.0s TimeCoverageRelationStatistics Valid=6686, Invalid=7834, Unknown=0, NotChecked=0, Total=14520 [2020-07-19 21:59:42,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 812 states. [2020-07-19 21:59:42,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 812 to 811. [2020-07-19 21:59:42,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 811 states. [2020-07-19 21:59:42,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 811 states to 811 states and 811 transitions. [2020-07-19 21:59:42,726 INFO L78 Accepts]: Start accepts. Automaton has 811 states and 811 transitions. Word has length 801 [2020-07-19 21:59:42,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:59:42,727 INFO L479 AbstractCegarLoop]: Abstraction has 811 states and 811 transitions. [2020-07-19 21:59:42,727 INFO L480 AbstractCegarLoop]: Interpolant automaton has 120 states. [2020-07-19 21:59:42,727 INFO L276 IsEmpty]: Start isEmpty. Operand 811 states and 811 transitions. [2020-07-19 21:59:42,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 809 [2020-07-19 21:59:42,731 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:59:42,732 INFO L422 BasicCegarLoop]: trace histogram [115, 115, 115, 114, 114, 114, 114, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:59:42,932 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 114 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable113 [2020-07-19 21:59:42,933 INFO L427 AbstractCegarLoop]: === Iteration 115 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:59:42,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:59:42,933 INFO L82 PathProgramCache]: Analyzing trace with hash -311859627, now seen corresponding path program 114 times [2020-07-19 21:59:42,934 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:59:42,934 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996014293] [2020-07-19 21:59:42,934 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 21:59:42,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,698 INFO L134 CoverageAnalysis]: Checked inductivity of 45543 backedges. 228 proven. 19551 refuted. 0 times theorem prover too weak. 25764 trivial. 0 not checked. [2020-07-19 21:59:55,698 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996014293] [2020-07-19 21:59:55,698 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1012210018] [2020-07-19 21:59:55,698 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 115 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 115 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:59:55,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:59:55,880 INFO L263 TraceCheckSpWp]: Trace formula consists of 1390 conjuncts, 118 conjunts are in the unsatisfiable core [2020-07-19 21:59:55,884 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:59:55,907 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:59:56,425 INFO L134 CoverageAnalysis]: Checked inductivity of 45543 backedges. 228 proven. 19551 refuted. 0 times theorem prover too weak. 25764 trivial. 0 not checked. [2020-07-19 21:59:56,425 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:59:56,425 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [119, 119] total 121 [2020-07-19 21:59:56,425 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177175269] [2020-07-19 21:59:56,426 INFO L459 AbstractCegarLoop]: Interpolant automaton has 121 states [2020-07-19 21:59:56,426 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:59:56,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 121 interpolants. [2020-07-19 21:59:56,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6796, Invalid=7724, Unknown=0, NotChecked=0, Total=14520 [2020-07-19 21:59:56,427 INFO L87 Difference]: Start difference. First operand 811 states and 811 transitions. Second operand 121 states. [2020-07-19 22:00:00,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 22:00:00,088 INFO L93 Difference]: Finished difference Result 821 states and 821 transitions. [2020-07-19 22:00:00,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2020-07-19 22:00:00,090 INFO L78 Accepts]: Start accepts. Automaton has 121 states. Word has length 808 [2020-07-19 22:00:00,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 22:00:00,092 INFO L225 Difference]: With dead ends: 821 [2020-07-19 22:00:00,092 INFO L226 Difference]: Without dead ends: 819 [2020-07-19 22:00:00,093 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1157 GetRequests, 1037 SyntacticMatches, 0 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 457 ImplicationChecksByTransitivity, 12.6s TimeCoverageRelationStatistics Valid=6802, Invalid=7960, Unknown=0, NotChecked=0, Total=14762 [2020-07-19 22:00:00,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 819 states. [2020-07-19 22:00:00,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 819 to 818. [2020-07-19 22:00:00,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 818 states. [2020-07-19 22:00:00,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 818 states to 818 states and 818 transitions. [2020-07-19 22:00:00,101 INFO L78 Accepts]: Start accepts. Automaton has 818 states and 818 transitions. Word has length 808 [2020-07-19 22:00:00,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 22:00:00,101 INFO L479 AbstractCegarLoop]: Abstraction has 818 states and 818 transitions. [2020-07-19 22:00:00,102 INFO L480 AbstractCegarLoop]: Interpolant automaton has 121 states. [2020-07-19 22:00:00,102 INFO L276 IsEmpty]: Start isEmpty. Operand 818 states and 818 transitions. [2020-07-19 22:00:00,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 816 [2020-07-19 22:00:00,106 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 22:00:00,106 INFO L422 BasicCegarLoop]: trace histogram [116, 116, 116, 115, 115, 115, 115, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 22:00:00,307 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114,115 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 22:00:00,307 INFO L427 AbstractCegarLoop]: === Iteration 116 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 22:00:00,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 22:00:00,308 INFO L82 PathProgramCache]: Analyzing trace with hash 1908274024, now seen corresponding path program 115 times [2020-07-19 22:00:00,308 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 22:00:00,308 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202676368] [2020-07-19 22:00:00,309 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c787aec [2020-07-19 22:00:00,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat