/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 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem14_label24.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 13:39:32,792 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 13:39:32,797 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 13:39:32,844 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 13:39:32,844 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 13:39:32,852 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 13:39:32,856 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 13:39:32,860 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 13:39:32,863 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 13:39:32,866 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 13:39:32,867 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 13:39:32,868 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 13:39:32,869 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 13:39:32,872 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 13:39:32,874 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 13:39:32,876 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 13:39:32,878 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 13:39:32,879 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 13:39:32,881 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 13:39:32,889 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 13:39:32,892 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 13:39:32,893 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 13:39:32,894 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 13:39:32,895 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 13:39:32,912 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-04 13:39:32,928 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 13:39:32,929 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 13:39:32,930 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 13:39:32,932 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-04 13:39:32,978 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 13:39:32,979 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 13:39:32,980 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-04 13:39:32,981 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-04 13:39:32,981 INFO L138 SettingsManager]: * Use SBE=true [2020-09-04 13:39:32,981 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 13:39:32,982 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 13:39:32,982 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 13:39:32,982 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 13:39:32,982 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 13:39:32,983 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 13:39:32,984 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 13:39:32,984 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 13:39:32,984 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 13:39:32,984 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 13:39:32,985 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 13:39:32,985 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 13:39:32,985 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 13:39:32,985 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-04 13:39:32,985 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 13:39:32,986 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 13:39:32,986 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 13:39:32,986 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 13:39:32,986 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-04 13:39:32,986 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-04 13:39:32,987 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-04 13:39:32,987 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-04 13:39:32,987 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 13:39:32,987 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-04 13:39:32,987 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-04 13:39:33,487 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 13:39:33,513 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 13:39:33,518 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 13:39:33,520 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 13:39:33,520 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 13:39:33,523 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label24.c [2020-09-04 13:39:33,616 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c04722bde/8393d7f1e3e2412891111332fd31192c/FLAGc3c0908c1 [2020-09-04 13:39:34,327 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 13:39:34,328 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem14_label24.c [2020-09-04 13:39:34,343 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c04722bde/8393d7f1e3e2412891111332fd31192c/FLAGc3c0908c1 [2020-09-04 13:39:34,508 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c04722bde/8393d7f1e3e2412891111332fd31192c [2020-09-04 13:39:34,520 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 13:39:34,522 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 13:39:34,523 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 13:39:34,523 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 13:39:34,528 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 13:39:34,529 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 01:39:34" (1/1) ... [2020-09-04 13:39:34,533 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ad15a05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:39:34, skipping insertion in model container [2020-09-04 13:39:34,534 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 01:39:34" (1/1) ... [2020-09-04 13:39:34,543 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 13:39:34,611 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 13:39:35,233 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 13:39:35,242 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 13:39:35,408 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 13:39:35,436 INFO L208 MainTranslator]: Completed translation [2020-09-04 13:39:35,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:39:35 WrapperNode [2020-09-04 13:39:35,437 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 13:39:35,438 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 13:39:35,438 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 13:39:35,438 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 13:39:35,465 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:39:35" (1/1) ... [2020-09-04 13:39:35,466 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:39:35" (1/1) ... [2020-09-04 13:39:35,489 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:39:35" (1/1) ... [2020-09-04 13:39:35,489 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:39:35" (1/1) ... [2020-09-04 13:39:35,540 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:39:35" (1/1) ... [2020-09-04 13:39:35,566 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:39:35" (1/1) ... [2020-09-04 13:39:35,584 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:39:35" (1/1) ... [2020-09-04 13:39:35,597 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 13:39:35,598 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 13:39:35,598 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 13:39:35,598 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 13:39:35,600 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:39:35" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-04 13:39:35,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 13:39:35,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 13:39:35,716 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-09-04 13:39:35,716 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 13:39:35,717 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-09-04 13:39:35,717 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 13:39:35,717 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-04 13:39:35,718 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-04 13:39:35,718 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 13:39:35,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 13:39:35,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 13:39:37,360 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 13:39:37,360 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-04 13:39:37,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 01:39:37 BoogieIcfgContainer [2020-09-04 13:39:37,368 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 13:39:37,370 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 13:39:37,370 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 13:39:37,373 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 13:39:37,374 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 01:39:34" (1/3) ... [2020-09-04 13:39:37,375 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a88e79b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 01:39:37, skipping insertion in model container [2020-09-04 13:39:37,375 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:39:35" (2/3) ... [2020-09-04 13:39:37,376 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a88e79b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 01:39:37, skipping insertion in model container [2020-09-04 13:39:37,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 01:39:37" (3/3) ... [2020-09-04 13:39:37,378 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem14_label24.c [2020-09-04 13:39:37,391 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-09-04 13:39:37,402 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 13:39:37,426 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 13:39:37,461 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 13:39:37,461 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 13:39:37,462 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-09-04 13:39:37,462 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 13:39:37,462 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 13:39:37,462 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 13:39:37,462 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 13:39:37,462 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 13:39:37,493 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states. [2020-09-04 13:39:37,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-09-04 13:39:37,503 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:39:37,504 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:39:37,505 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:39:37,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:39:37,513 INFO L82 PathProgramCache]: Analyzing trace with hash 2116109586, now seen corresponding path program 1 times [2020-09-04 13:39:37,527 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:39:37,527 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043350950] [2020-09-04 13:39:37,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:39:37,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:37,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:39:37,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:37,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 13:39:37,889 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043350950] [2020-09-04 13:39:37,890 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 13:39:37,891 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-04 13:39:37,892 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023642077] [2020-09-04 13:39:37,899 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-04 13:39:37,899 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:39:37,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-04 13:39:37,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-04 13:39:37,921 INFO L87 Difference]: Start difference. First operand 254 states. Second operand 5 states. [2020-09-04 13:39:41,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:39:41,173 INFO L93 Difference]: Finished difference Result 886 states and 1613 transitions. [2020-09-04 13:39:41,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-04 13:39:41,176 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 47 [2020-09-04 13:39:41,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:39:41,200 INFO L225 Difference]: With dead ends: 886 [2020-09-04 13:39:41,201 INFO L226 Difference]: Without dead ends: 564 [2020-09-04 13:39:41,214 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-04 13:39:41,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2020-09-04 13:39:41,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 558. [2020-09-04 13:39:41,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 558 states. [2020-09-04 13:39:41,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 906 transitions. [2020-09-04 13:39:41,336 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 906 transitions. Word has length 47 [2020-09-04 13:39:41,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:39:41,336 INFO L479 AbstractCegarLoop]: Abstraction has 558 states and 906 transitions. [2020-09-04 13:39:41,336 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-04 13:39:41,337 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 906 transitions. [2020-09-04 13:39:41,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-09-04 13:39:41,343 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:39:41,344 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:39:41,344 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 13:39:41,345 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:39:41,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:39:41,345 INFO L82 PathProgramCache]: Analyzing trace with hash -1939521290, now seen corresponding path program 1 times [2020-09-04 13:39:41,346 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:39:41,346 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322282015] [2020-09-04 13:39:41,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:39:41,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:41,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:39:41,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:41,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-04 13:39:41,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:41,700 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 13:39:41,701 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322282015] [2020-09-04 13:39:41,701 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 13:39:41,701 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-04 13:39:41,702 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913257430] [2020-09-04 13:39:41,704 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-04 13:39:41,704 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:39:41,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-04 13:39:41,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-04 13:39:41,705 INFO L87 Difference]: Start difference. First operand 558 states and 906 transitions. Second operand 8 states. [2020-09-04 13:39:44,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:39:44,008 INFO L93 Difference]: Finished difference Result 1320 states and 2174 transitions. [2020-09-04 13:39:44,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-04 13:39:44,009 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 121 [2020-09-04 13:39:44,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:39:44,016 INFO L225 Difference]: With dead ends: 1320 [2020-09-04 13:39:44,016 INFO L226 Difference]: Without dead ends: 768 [2020-09-04 13:39:44,018 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-09-04 13:39:44,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 768 states. [2020-09-04 13:39:44,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 768 to 566. [2020-09-04 13:39:44,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 566 states. [2020-09-04 13:39:44,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 819 transitions. [2020-09-04 13:39:44,055 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 819 transitions. Word has length 121 [2020-09-04 13:39:44,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:39:44,055 INFO L479 AbstractCegarLoop]: Abstraction has 566 states and 819 transitions. [2020-09-04 13:39:44,055 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-04 13:39:44,056 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 819 transitions. [2020-09-04 13:39:44,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-09-04 13:39:44,058 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:39:44,059 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:39:44,059 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-04 13:39:44,059 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:39:44,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:39:44,060 INFO L82 PathProgramCache]: Analyzing trace with hash -2114473467, now seen corresponding path program 1 times [2020-09-04 13:39:44,060 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:39:44,060 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737383341] [2020-09-04 13:39:44,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:39:44,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:44,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:39:44,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:44,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-04 13:39:44,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:44,410 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 13:39:44,410 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737383341] [2020-09-04 13:39:44,411 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 13:39:44,411 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-04 13:39:44,411 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478778445] [2020-09-04 13:39:44,412 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-04 13:39:44,412 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:39:44,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-04 13:39:44,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-04 13:39:44,413 INFO L87 Difference]: Start difference. First operand 566 states and 819 transitions. Second operand 8 states. [2020-09-04 13:39:46,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:39:46,498 INFO L93 Difference]: Finished difference Result 1330 states and 1917 transitions. [2020-09-04 13:39:46,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-04 13:39:46,499 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 130 [2020-09-04 13:39:46,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:39:46,506 INFO L225 Difference]: With dead ends: 1330 [2020-09-04 13:39:46,506 INFO L226 Difference]: Without dead ends: 770 [2020-09-04 13:39:46,509 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-09-04 13:39:46,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 770 states. [2020-09-04 13:39:46,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 770 to 754. [2020-09-04 13:39:46,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 754 states. [2020-09-04 13:39:46,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 754 states to 754 states and 1023 transitions. [2020-09-04 13:39:46,552 INFO L78 Accepts]: Start accepts. Automaton has 754 states and 1023 transitions. Word has length 130 [2020-09-04 13:39:46,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:39:46,553 INFO L479 AbstractCegarLoop]: Abstraction has 754 states and 1023 transitions. [2020-09-04 13:39:46,553 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-04 13:39:46,553 INFO L276 IsEmpty]: Start isEmpty. Operand 754 states and 1023 transitions. [2020-09-04 13:39:46,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2020-09-04 13:39:46,557 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:39:46,558 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:39:46,558 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-04 13:39:46,558 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:39:46,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:39:46,559 INFO L82 PathProgramCache]: Analyzing trace with hash -1539058259, now seen corresponding path program 1 times [2020-09-04 13:39:46,559 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:39:46,560 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056747055] [2020-09-04 13:39:46,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:39:46,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:46,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:39:46,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:46,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-04 13:39:46,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:46,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-09-04 13:39:46,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:46,900 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 81 proven. 2 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-09-04 13:39:46,901 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056747055] [2020-09-04 13:39:46,901 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2067225010] [2020-09-04 13:39:46,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-04 13:39:47,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:47,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 396 conjuncts, 4 conjunts are in the unsatisfiable core [2020-09-04 13:39:47,089 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:39:47,274 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-09-04 13:39:47,276 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-09-04 13:39:47,277 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2020-09-04 13:39:47,279 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522437914] [2020-09-04 13:39:47,280 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 13:39:47,280 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:39:47,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 13:39:47,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-04 13:39:47,281 INFO L87 Difference]: Start difference. First operand 754 states and 1023 transitions. Second operand 3 states. [2020-09-04 13:39:48,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:39:48,344 INFO L93 Difference]: Finished difference Result 2236 states and 3079 transitions. [2020-09-04 13:39:48,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 13:39:48,345 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 214 [2020-09-04 13:39:48,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:39:48,356 INFO L225 Difference]: With dead ends: 2236 [2020-09-04 13:39:48,356 INFO L226 Difference]: Without dead ends: 1488 [2020-09-04 13:39:48,360 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 219 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-04 13:39:48,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1488 states. [2020-09-04 13:39:48,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1488 to 1304. [2020-09-04 13:39:48,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1304 states. [2020-09-04 13:39:48,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1304 states to 1304 states and 1677 transitions. [2020-09-04 13:39:48,420 INFO L78 Accepts]: Start accepts. Automaton has 1304 states and 1677 transitions. Word has length 214 [2020-09-04 13:39:48,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:39:48,422 INFO L479 AbstractCegarLoop]: Abstraction has 1304 states and 1677 transitions. [2020-09-04 13:39:48,422 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 13:39:48,422 INFO L276 IsEmpty]: Start isEmpty. Operand 1304 states and 1677 transitions. [2020-09-04 13:39:48,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2020-09-04 13:39:48,431 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:39:48,432 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:39:48,645 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:39:48,646 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:39:48,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:39:48,646 INFO L82 PathProgramCache]: Analyzing trace with hash -266552290, now seen corresponding path program 1 times [2020-09-04 13:39:48,647 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:39:48,647 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929328109] [2020-09-04 13:39:48,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:39:48,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:48,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:39:48,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:48,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-04 13:39:48,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:48,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-09-04 13:39:48,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:49,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-09-04 13:39:49,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:49,557 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 154 proven. 191 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-04 13:39:49,557 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929328109] [2020-09-04 13:39:49,558 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [751136775] [2020-09-04 13:39:49,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-04 13:39:49,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:49,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 538 conjuncts, 15 conjunts are in the unsatisfiable core [2020-09-04 13:39:49,743 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:39:49,930 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 4, 4, 1] term [2020-09-04 13:39:49,931 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-09-04 13:39:49,934 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-09-04 13:39:49,941 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-09-04 13:39:50,287 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 309 proven. 2 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-09-04 13:39:50,288 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:39:50,288 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2020-09-04 13:39:50,288 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155937727] [2020-09-04 13:39:50,289 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-04 13:39:50,290 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:39:50,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-04 13:39:50,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2020-09-04 13:39:50,291 INFO L87 Difference]: Start difference. First operand 1304 states and 1677 transitions. Second operand 15 states. [2020-09-04 13:39:55,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:39:55,797 INFO L93 Difference]: Finished difference Result 3314 states and 4315 transitions. [2020-09-04 13:39:55,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-09-04 13:39:55,797 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 317 [2020-09-04 13:39:55,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:39:55,809 INFO L225 Difference]: With dead ends: 3314 [2020-09-04 13:39:55,809 INFO L226 Difference]: Without dead ends: 1969 [2020-09-04 13:39:55,815 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 377 GetRequests, 338 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 396 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=334, Invalid=1226, Unknown=0, NotChecked=0, Total=1560 [2020-09-04 13:39:55,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1969 states. [2020-09-04 13:39:55,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1969 to 1878. [2020-09-04 13:39:55,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1878 states. [2020-09-04 13:39:55,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1878 states to 1878 states and 2155 transitions. [2020-09-04 13:39:55,908 INFO L78 Accepts]: Start accepts. Automaton has 1878 states and 2155 transitions. Word has length 317 [2020-09-04 13:39:55,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:39:55,912 INFO L479 AbstractCegarLoop]: Abstraction has 1878 states and 2155 transitions. [2020-09-04 13:39:55,913 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-04 13:39:55,913 INFO L276 IsEmpty]: Start isEmpty. Operand 1878 states and 2155 transitions. [2020-09-04 13:39:55,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2020-09-04 13:39:55,924 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:39:55,924 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:39:56,139 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:39:56,139 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:39:56,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:39:56,140 INFO L82 PathProgramCache]: Analyzing trace with hash -1074149043, now seen corresponding path program 1 times [2020-09-04 13:39:56,140 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:39:56,141 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848811004] [2020-09-04 13:39:56,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:39:56,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:56,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:39:56,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:56,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-04 13:39:56,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:56,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-04 13:39:56,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:56,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2020-09-04 13:39:56,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:57,263 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 267 proven. 2 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2020-09-04 13:39:57,264 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848811004] [2020-09-04 13:39:57,264 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [190915961] [2020-09-04 13:39:57,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-04 13:39:57,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:57,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 562 conjuncts, 6 conjunts are in the unsatisfiable core [2020-09-04 13:39:57,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:39:57,497 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 1] term [2020-09-04 13:39:57,498 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-09-04 13:39:57,603 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 221 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2020-09-04 13:39:57,604 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-09-04 13:39:57,604 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2020-09-04 13:39:57,605 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804221649] [2020-09-04 13:39:57,605 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-04 13:39:57,605 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:39:57,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-04 13:39:57,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-09-04 13:39:57,606 INFO L87 Difference]: Start difference. First operand 1878 states and 2155 transitions. Second operand 5 states. [2020-09-04 13:39:58,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:39:58,988 INFO L93 Difference]: Finished difference Result 4522 states and 5333 transitions. [2020-09-04 13:39:58,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-04 13:39:58,988 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 342 [2020-09-04 13:39:58,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:39:59,001 INFO L225 Difference]: With dead ends: 4522 [2020-09-04 13:39:59,001 INFO L226 Difference]: Without dead ends: 2650 [2020-09-04 13:39:59,006 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 345 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2020-09-04 13:39:59,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2650 states. [2020-09-04 13:39:59,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2650 to 2648. [2020-09-04 13:39:59,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2648 states. [2020-09-04 13:39:59,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2648 states to 2648 states and 3100 transitions. [2020-09-04 13:39:59,080 INFO L78 Accepts]: Start accepts. Automaton has 2648 states and 3100 transitions. Word has length 342 [2020-09-04 13:39:59,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:39:59,081 INFO L479 AbstractCegarLoop]: Abstraction has 2648 states and 3100 transitions. [2020-09-04 13:39:59,081 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-04 13:39:59,081 INFO L276 IsEmpty]: Start isEmpty. Operand 2648 states and 3100 transitions. [2020-09-04 13:39:59,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 453 [2020-09-04 13:39:59,091 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:39:59,092 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:39:59,305 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:39:59,306 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:39:59,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:39:59,307 INFO L82 PathProgramCache]: Analyzing trace with hash 1203933665, now seen corresponding path program 1 times [2020-09-04 13:39:59,307 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:39:59,308 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597544125] [2020-09-04 13:39:59,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:39:59,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:59,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:39:59,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:59,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-04 13:39:59,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:59,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-04 13:39:59,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:59,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-09-04 13:39:59,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:59,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2020-09-04 13:39:59,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:40:00,236 INFO L134 CoverageAnalysis]: Checked inductivity of 710 backedges. 481 proven. 152 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2020-09-04 13:40:00,236 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597544125] [2020-09-04 13:40:00,237 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1818746542] [2020-09-04 13:40:00,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-04 13:40:00,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:40:00,380 INFO L263 TraceCheckSpWp]: Trace formula consists of 709 conjuncts, 7 conjunts are in the unsatisfiable core [2020-09-04 13:40:00,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:40:00,600 INFO L134 CoverageAnalysis]: Checked inductivity of 710 backedges. 561 proven. 2 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2020-09-04 13:40:00,601 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:40:00,601 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 5] total 15 [2020-09-04 13:40:00,602 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835030890] [2020-09-04 13:40:00,603 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-04 13:40:00,603 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:40:00,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-04 13:40:00,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2020-09-04 13:40:00,604 INFO L87 Difference]: Start difference. First operand 2648 states and 3100 transitions. Second operand 15 states. [2020-09-04 13:40:11,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:40:11,280 INFO L93 Difference]: Finished difference Result 6768 states and 8081 transitions. [2020-09-04 13:40:11,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2020-09-04 13:40:11,281 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 452 [2020-09-04 13:40:11,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:40:11,306 INFO L225 Difference]: With dead ends: 6768 [2020-09-04 13:40:11,306 INFO L226 Difference]: Without dead ends: 4308 [2020-09-04 13:40:11,315 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 554 GetRequests, 494 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1128 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=581, Invalid=3201, Unknown=0, NotChecked=0, Total=3782 [2020-09-04 13:40:11,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4308 states. [2020-09-04 13:40:11,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4308 to 2832. [2020-09-04 13:40:11,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2832 states. [2020-09-04 13:40:11,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2832 states to 2832 states and 3282 transitions. [2020-09-04 13:40:11,419 INFO L78 Accepts]: Start accepts. Automaton has 2832 states and 3282 transitions. Word has length 452 [2020-09-04 13:40:11,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:40:11,420 INFO L479 AbstractCegarLoop]: Abstraction has 2832 states and 3282 transitions. [2020-09-04 13:40:11,420 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-04 13:40:11,420 INFO L276 IsEmpty]: Start isEmpty. Operand 2832 states and 3282 transitions. [2020-09-04 13:40:11,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 537 [2020-09-04 13:40:11,435 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:40:11,435 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:40:11,649 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:40:11,649 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:40:11,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:40:11,650 INFO L82 PathProgramCache]: Analyzing trace with hash -1066963527, now seen corresponding path program 1 times [2020-09-04 13:40:11,650 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:40:11,650 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232617724] [2020-09-04 13:40:11,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:40:11,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:40:11,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:40:11,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:40:11,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-04 13:40:11,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:40:11,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-04 13:40:12,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:40:12,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-09-04 13:40:12,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:40:12,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2020-09-04 13:40:12,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:40:12,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2020-09-04 13:40:12,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:40:12,670 INFO L134 CoverageAnalysis]: Checked inductivity of 1076 backedges. 518 proven. 81 refuted. 0 times theorem prover too weak. 477 trivial. 0 not checked. [2020-09-04 13:40:12,670 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232617724] [2020-09-04 13:40:12,671 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [162818492] [2020-09-04 13:40:12,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-04 13:40:12,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:40:12,828 INFO L263 TraceCheckSpWp]: Trace formula consists of 832 conjuncts, 11 conjunts are in the unsatisfiable core [2020-09-04 13:40:12,849 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:40:12,963 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 4, 4, 1] term [2020-09-04 13:40:12,964 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-09-04 13:40:12,974 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-09-04 13:40:12,977 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-09-04 13:40:13,375 INFO L134 CoverageAnalysis]: Checked inductivity of 1076 backedges. 762 proven. 2 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2020-09-04 13:40:13,375 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:40:13,376 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 11 [2020-09-04 13:40:13,376 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174505122] [2020-09-04 13:40:13,377 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-04 13:40:13,377 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:40:13,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-04 13:40:13,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-09-04 13:40:13,378 INFO L87 Difference]: Start difference. First operand 2832 states and 3282 transitions. Second operand 11 states. [2020-09-04 13:40:17,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:40:17,379 INFO L93 Difference]: Finished difference Result 6136 states and 7192 transitions. [2020-09-04 13:40:17,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-09-04 13:40:17,380 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 536 [2020-09-04 13:40:17,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:40:17,398 INFO L225 Difference]: With dead ends: 6136 [2020-09-04 13:40:17,399 INFO L226 Difference]: Without dead ends: 3453 [2020-09-04 13:40:17,408 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 588 GetRequests, 560 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=199, Invalid=613, Unknown=0, NotChecked=0, Total=812 [2020-09-04 13:40:17,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3453 states. [2020-09-04 13:40:17,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3453 to 3380. [2020-09-04 13:40:17,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3380 states. [2020-09-04 13:40:17,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3380 states to 3380 states and 3729 transitions. [2020-09-04 13:40:17,503 INFO L78 Accepts]: Start accepts. Automaton has 3380 states and 3729 transitions. Word has length 536 [2020-09-04 13:40:17,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:40:17,503 INFO L479 AbstractCegarLoop]: Abstraction has 3380 states and 3729 transitions. [2020-09-04 13:40:17,503 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-04 13:40:17,504 INFO L276 IsEmpty]: Start isEmpty. Operand 3380 states and 3729 transitions. [2020-09-04 13:40:17,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 637 [2020-09-04 13:40:17,524 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:40:17,528 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:40:17,744 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:40:17,744 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:40:17,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:40:17,745 INFO L82 PathProgramCache]: Analyzing trace with hash 629641869, now seen corresponding path program 1 times [2020-09-04 13:40:17,746 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:40:17,746 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543194449] [2020-09-04 13:40:17,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:40:17,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:40:17,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:40:17,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:40:17,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-04 13:40:17,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:40:18,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-04 13:40:18,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:40:18,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-09-04 13:40:18,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:40:18,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-09-04 13:40:18,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:40:18,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 523 [2020-09-04 13:40:18,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:40:18,504 INFO L134 CoverageAnalysis]: Checked inductivity of 1160 backedges. 549 proven. 73 refuted. 0 times theorem prover too weak. 538 trivial. 0 not checked. [2020-09-04 13:40:18,504 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543194449] [2020-09-04 13:40:18,504 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2117207339] [2020-09-04 13:40:18,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-04 13:40:18,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:40:18,718 INFO L263 TraceCheckSpWp]: Trace formula consists of 933 conjuncts, 4 conjunts are in the unsatisfiable core [2020-09-04 13:40:18,726 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:40:18,985 INFO L134 CoverageAnalysis]: Checked inductivity of 1160 backedges. 795 proven. 2 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2020-09-04 13:40:18,986 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:40:18,986 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 8 [2020-09-04 13:40:18,987 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951695490] [2020-09-04 13:40:18,987 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-04 13:40:18,988 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:40:18,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-04 13:40:18,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-04 13:40:18,988 INFO L87 Difference]: Start difference. First operand 3380 states and 3729 transitions. Second operand 8 states. [2020-09-04 13:40:20,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:40:20,842 INFO L93 Difference]: Finished difference Result 7682 states and 8614 transitions. [2020-09-04 13:40:20,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-04 13:40:20,842 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 636 [2020-09-04 13:40:20,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:40:20,859 INFO L225 Difference]: With dead ends: 7682 [2020-09-04 13:40:20,859 INFO L226 Difference]: Without dead ends: 4490 [2020-09-04 13:40:20,866 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 666 GetRequests, 653 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-09-04 13:40:20,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4490 states. [2020-09-04 13:40:20,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4490 to 4478. [2020-09-04 13:40:20,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4478 states. [2020-09-04 13:40:20,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4478 states to 4478 states and 4969 transitions. [2020-09-04 13:40:20,973 INFO L78 Accepts]: Start accepts. Automaton has 4478 states and 4969 transitions. Word has length 636 [2020-09-04 13:40:20,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:40:20,974 INFO L479 AbstractCegarLoop]: Abstraction has 4478 states and 4969 transitions. [2020-09-04 13:40:20,974 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-04 13:40:20,974 INFO L276 IsEmpty]: Start isEmpty. Operand 4478 states and 4969 transitions. [2020-09-04 13:40:20,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 643 [2020-09-04 13:40:20,984 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:40:20,985 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:40:21,198 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:40:21,198 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:40:21,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:40:21,199 INFO L82 PathProgramCache]: Analyzing trace with hash 813075049, now seen corresponding path program 1 times [2020-09-04 13:40:21,200 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:40:21,200 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464012876] [2020-09-04 13:40:21,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:40:21,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:40:21,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:40:21,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:40:21,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-04 13:40:21,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:40:21,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-04 13:40:21,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:40:21,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-09-04 13:40:21,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:40:21,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-09-04 13:40:21,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:40:21,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 417 [2020-09-04 13:40:21,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:40:21,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 529 [2020-09-04 13:40:21,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:40:22,623 INFO L134 CoverageAnalysis]: Checked inductivity of 1560 backedges. 892 proven. 343 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2020-09-04 13:40:22,624 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464012876] [2020-09-04 13:40:22,624 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [999547024] [2020-09-04 13:40:22,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-04 13:40:22,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:40:22,811 INFO L263 TraceCheckSpWp]: Trace formula consists of 973 conjuncts, 7 conjunts are in the unsatisfiable core [2020-09-04 13:40:22,824 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:40:23,043 INFO L134 CoverageAnalysis]: Checked inductivity of 1560 backedges. 1080 proven. 2 refuted. 0 times theorem prover too weak. 478 trivial. 0 not checked. [2020-09-04 13:40:23,044 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:40:23,044 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 5] total 14 [2020-09-04 13:40:23,044 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600710706] [2020-09-04 13:40:23,046 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-04 13:40:23,046 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:40:23,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-04 13:40:23,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2020-09-04 13:40:23,047 INFO L87 Difference]: Start difference. First operand 4478 states and 4969 transitions. Second operand 14 states. [2020-09-04 13:40:28,657 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2020-09-04 13:40:29,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:40:29,770 INFO L93 Difference]: Finished difference Result 9961 states and 11173 transitions. [2020-09-04 13:40:29,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-09-04 13:40:29,771 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 642 [2020-09-04 13:40:29,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:40:29,794 INFO L225 Difference]: With dead ends: 9961 [2020-09-04 13:40:29,794 INFO L226 Difference]: Without dead ends: 5638 [2020-09-04 13:40:29,805 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 717 GetRequests, 677 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 428 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=342, Invalid=1380, Unknown=0, NotChecked=0, Total=1722 [2020-09-04 13:40:29,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5638 states. [2020-09-04 13:40:29,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5638 to 5048. [2020-09-04 13:40:29,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5048 states. [2020-09-04 13:40:29,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5048 states to 5048 states and 5596 transitions. [2020-09-04 13:40:29,923 INFO L78 Accepts]: Start accepts. Automaton has 5048 states and 5596 transitions. Word has length 642 [2020-09-04 13:40:29,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:40:29,924 INFO L479 AbstractCegarLoop]: Abstraction has 5048 states and 5596 transitions. [2020-09-04 13:40:29,924 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-04 13:40:29,925 INFO L276 IsEmpty]: Start isEmpty. Operand 5048 states and 5596 transitions. [2020-09-04 13:40:29,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 769 [2020-09-04 13:40:29,936 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:40:29,936 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:40:30,150 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-09-04 13:40:30,150 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:40:30,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:40:30,151 INFO L82 PathProgramCache]: Analyzing trace with hash 95380981, now seen corresponding path program 1 times [2020-09-04 13:40:30,151 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:40:30,151 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527398670] [2020-09-04 13:40:30,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:40:30,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:40:30,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:40:30,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:40:30,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-04 13:40:30,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:40:30,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-04 13:40:30,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:40:30,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-09-04 13:40:30,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:40:30,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2020-09-04 13:40:30,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:40:30,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-09-04 13:40:30,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:40:30,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 543 [2020-09-04 13:40:30,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:40:30,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 655 [2020-09-04 13:40:30,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:40:31,383 INFO L134 CoverageAnalysis]: Checked inductivity of 2186 backedges. 648 proven. 268 refuted. 0 times theorem prover too weak. 1270 trivial. 0 not checked. [2020-09-04 13:40:31,383 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527398670] [2020-09-04 13:40:31,384 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [219110424] [2020-09-04 13:40:31,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-04 13:40:31,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:40:31,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 1136 conjuncts, 7 conjunts are in the unsatisfiable core [2020-09-04 13:40:31,639 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:40:31,712 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-09-04 13:40:31,713 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-09-04 13:40:31,716 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-09-04 13:40:32,533 INFO L134 CoverageAnalysis]: Checked inductivity of 2186 backedges. 1519 proven. 2 refuted. 0 times theorem prover too weak. 665 trivial. 0 not checked. [2020-09-04 13:40:32,534 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:40:32,535 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5] total 12 [2020-09-04 13:40:32,536 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046806139] [2020-09-04 13:40:32,538 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-04 13:40:32,538 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:40:32,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-04 13:40:32,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2020-09-04 13:40:32,539 INFO L87 Difference]: Start difference. First operand 5048 states and 5596 transitions. Second operand 12 states. [2020-09-04 13:40:36,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:40:36,763 INFO L93 Difference]: Finished difference Result 11552 states and 12741 transitions. [2020-09-04 13:40:36,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-09-04 13:40:36,764 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 768 [2020-09-04 13:40:36,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:40:36,787 INFO L225 Difference]: With dead ends: 11552 [2020-09-04 13:40:36,787 INFO L226 Difference]: Without dead ends: 6694 [2020-09-04 13:40:36,798 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 822 GetRequests, 793 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 179 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=191, Invalid=679, Unknown=0, NotChecked=0, Total=870 [2020-09-04 13:40:36,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6694 states. [2020-09-04 13:40:36,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6694 to 4868. [2020-09-04 13:40:36,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4868 states. [2020-09-04 13:40:36,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4868 states to 4868 states and 5410 transitions. [2020-09-04 13:40:36,906 INFO L78 Accepts]: Start accepts. Automaton has 4868 states and 5410 transitions. Word has length 768 [2020-09-04 13:40:36,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:40:36,907 INFO L479 AbstractCegarLoop]: Abstraction has 4868 states and 5410 transitions. [2020-09-04 13:40:36,907 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-04 13:40:36,907 INFO L276 IsEmpty]: Start isEmpty. Operand 4868 states and 5410 transitions. [2020-09-04 13:40:36,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 796 [2020-09-04 13:40:36,919 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:40:36,920 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:40:37,133 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2020-09-04 13:40:37,133 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:40:37,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:40:37,134 INFO L82 PathProgramCache]: Analyzing trace with hash 1074697562, now seen corresponding path program 1 times [2020-09-04 13:40:37,134 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:40:37,134 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99288147] [2020-09-04 13:40:37,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:40:37,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:40:37,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:40:37,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:40:37,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-04 13:40:37,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:40:37,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-04 13:40:37,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:40:37,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-09-04 13:40:37,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:40:37,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-09-04 13:40:37,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:40:37,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-09-04 13:40:37,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:40:37,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 682 [2020-09-04 13:40:37,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:40:38,059 INFO L134 CoverageAnalysis]: Checked inductivity of 1769 backedges. 754 proven. 73 refuted. 0 times theorem prover too weak. 942 trivial. 0 not checked. [2020-09-04 13:40:38,060 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99288147] [2020-09-04 13:40:38,060 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1505483131] [2020-09-04 13:40:38,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-04 13:40:38,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:40:38,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 1132 conjuncts, 7 conjunts are in the unsatisfiable core [2020-09-04 13:40:38,312 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:40:38,695 INFO L134 CoverageAnalysis]: Checked inductivity of 1769 backedges. 1243 proven. 10 refuted. 0 times theorem prover too weak. 516 trivial. 0 not checked. [2020-09-04 13:40:38,695 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:40:38,695 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2020-09-04 13:40:38,696 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099777530] [2020-09-04 13:40:38,696 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-04 13:40:38,697 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:40:38,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-04 13:40:38,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-09-04 13:40:38,697 INFO L87 Difference]: Start difference. First operand 4868 states and 5410 transitions. Second operand 10 states. [2020-09-04 13:40:41,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:40:41,310 INFO L93 Difference]: Finished difference Result 11204 states and 12532 transitions. [2020-09-04 13:40:41,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-04 13:40:41,313 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 795 [2020-09-04 13:40:41,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:40:41,333 INFO L225 Difference]: With dead ends: 11204 [2020-09-04 13:40:41,333 INFO L226 Difference]: Without dead ends: 6526 [2020-09-04 13:40:41,343 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 833 GetRequests, 815 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=268, Unknown=0, NotChecked=0, Total=380 [2020-09-04 13:40:41,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6526 states. [2020-09-04 13:40:41,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6526 to 6154. [2020-09-04 13:40:41,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6154 states. [2020-09-04 13:40:41,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6154 states to 6154 states and 6872 transitions. [2020-09-04 13:40:41,454 INFO L78 Accepts]: Start accepts. Automaton has 6154 states and 6872 transitions. Word has length 795 [2020-09-04 13:40:41,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:40:41,455 INFO L479 AbstractCegarLoop]: Abstraction has 6154 states and 6872 transitions. [2020-09-04 13:40:41,455 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-04 13:40:41,455 INFO L276 IsEmpty]: Start isEmpty. Operand 6154 states and 6872 transitions. [2020-09-04 13:40:41,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 802 [2020-09-04 13:40:41,469 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:40:41,470 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:40:41,684 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:40:41,685 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:40:41,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:40:41,686 INFO L82 PathProgramCache]: Analyzing trace with hash 848396150, now seen corresponding path program 1 times [2020-09-04 13:40:41,686 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:40:41,686 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326697761] [2020-09-04 13:40:41,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:40:41,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:40:41,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:40:41,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:40:42,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-04 13:40:42,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:40:42,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-04 13:40:42,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:40:42,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-09-04 13:40:42,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:40:42,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-09-04 13:40:42,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:40:42,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-09-04 13:40:42,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:40:42,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 576 [2020-09-04 13:40:42,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:40:42,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 688 [2020-09-04 13:40:42,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:40:43,336 INFO L134 CoverageAnalysis]: Checked inductivity of 2195 backedges. 825 proven. 89 refuted. 0 times theorem prover too weak. 1281 trivial. 0 not checked. [2020-09-04 13:40:43,336 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326697761] [2020-09-04 13:40:43,336 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1176340721] [2020-09-04 13:40:43,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-04 13:40:43,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:40:43,621 INFO L263 TraceCheckSpWp]: Trace formula consists of 1172 conjuncts, 9 conjunts are in the unsatisfiable core [2020-09-04 13:40:43,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:40:43,919 INFO L134 CoverageAnalysis]: Checked inductivity of 2195 backedges. 1382 proven. 2 refuted. 0 times theorem prover too weak. 811 trivial. 0 not checked. [2020-09-04 13:40:43,919 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:40:43,920 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 5] total 14 [2020-09-04 13:40:43,920 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160306508] [2020-09-04 13:40:43,921 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-04 13:40:43,921 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:40:43,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-04 13:40:43,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2020-09-04 13:40:43,922 INFO L87 Difference]: Start difference. First operand 6154 states and 6872 transitions. Second operand 14 states. [2020-09-04 13:40:44,319 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 43 [2020-09-04 13:40:44,691 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 48 [2020-09-04 13:40:45,419 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 47 [2020-09-04 13:40:46,467 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2020-09-04 13:40:47,706 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 44 [2020-09-04 13:40:47,998 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 38 [2020-09-04 13:40:48,953 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 44 [2020-09-04 13:40:49,337 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 44 [2020-09-04 13:40:50,526 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 50 [2020-09-04 13:40:50,701 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 50 [2020-09-04 13:40:51,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:40:51,293 INFO L93 Difference]: Finished difference Result 12881 states and 14375 transitions. [2020-09-04 13:40:51,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-09-04 13:40:51,294 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 801 [2020-09-04 13:40:51,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:40:51,314 INFO L225 Difference]: With dead ends: 12881 [2020-09-04 13:40:51,314 INFO L226 Difference]: Without dead ends: 6751 [2020-09-04 13:40:51,327 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 881 GetRequests, 837 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 512 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=411, Invalid=1569, Unknown=0, NotChecked=0, Total=1980 [2020-09-04 13:40:51,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6751 states. [2020-09-04 13:40:51,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6751 to 5968. [2020-09-04 13:40:51,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5968 states. [2020-09-04 13:40:51,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5968 states to 5968 states and 6545 transitions. [2020-09-04 13:40:51,437 INFO L78 Accepts]: Start accepts. Automaton has 5968 states and 6545 transitions. Word has length 801 [2020-09-04 13:40:51,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:40:51,437 INFO L479 AbstractCegarLoop]: Abstraction has 5968 states and 6545 transitions. [2020-09-04 13:40:51,437 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-04 13:40:51,438 INFO L276 IsEmpty]: Start isEmpty. Operand 5968 states and 6545 transitions. [2020-09-04 13:40:51,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 872 [2020-09-04 13:40:51,449 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:40:51,450 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:40:51,665 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:40:51,666 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:40:51,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:40:51,667 INFO L82 PathProgramCache]: Analyzing trace with hash 1556654866, now seen corresponding path program 1 times [2020-09-04 13:40:51,667 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:40:51,667 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631143621] [2020-09-04 13:40:51,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:40:51,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:40:51,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:40:51,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:40:51,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-04 13:40:51,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:40:52,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-04 13:40:52,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:40:52,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-09-04 13:40:52,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:40:52,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-09-04 13:40:52,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:40:52,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-09-04 13:40:52,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:40:52,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 579 [2020-09-04 13:40:52,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:40:52,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 758 [2020-09-04 13:40:52,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:40:52,971 INFO L134 CoverageAnalysis]: Checked inductivity of 2263 backedges. 616 proven. 158 refuted. 0 times theorem prover too weak. 1489 trivial. 0 not checked. [2020-09-04 13:40:52,971 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631143621] [2020-09-04 13:40:52,971 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [651643447] [2020-09-04 13:40:52,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-04 13:40:53,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:40:53,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 1248 conjuncts, 4 conjunts are in the unsatisfiable core [2020-09-04 13:40:53,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:40:53,602 INFO L134 CoverageAnalysis]: Checked inductivity of 2263 backedges. 1450 proven. 2 refuted. 0 times theorem prover too weak. 811 trivial. 0 not checked. [2020-09-04 13:40:53,603 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:40:53,603 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5] total 11 [2020-09-04 13:40:53,604 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545885019] [2020-09-04 13:40:53,605 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-04 13:40:53,605 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:40:53,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-04 13:40:53,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-09-04 13:40:53,605 INFO L87 Difference]: Start difference. First operand 5968 states and 6545 transitions. Second operand 11 states. [2020-09-04 13:40:57,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:40:57,470 INFO L93 Difference]: Finished difference Result 12302 states and 13457 transitions. [2020-09-04 13:40:57,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-09-04 13:40:57,472 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 871 [2020-09-04 13:40:57,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:40:57,511 INFO L225 Difference]: With dead ends: 12302 [2020-09-04 13:40:57,511 INFO L226 Difference]: Without dead ends: 6524 [2020-09-04 13:40:57,526 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 925 GetRequests, 899 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=170, Invalid=586, Unknown=0, NotChecked=0, Total=756 [2020-09-04 13:40:57,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6524 states. [2020-09-04 13:40:57,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6524 to 5972. [2020-09-04 13:40:57,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5972 states. [2020-09-04 13:40:57,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5972 states to 5972 states and 6474 transitions. [2020-09-04 13:40:57,654 INFO L78 Accepts]: Start accepts. Automaton has 5972 states and 6474 transitions. Word has length 871 [2020-09-04 13:40:57,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:40:57,655 INFO L479 AbstractCegarLoop]: Abstraction has 5972 states and 6474 transitions. [2020-09-04 13:40:57,655 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-04 13:40:57,655 INFO L276 IsEmpty]: Start isEmpty. Operand 5972 states and 6474 transitions. [2020-09-04 13:40:57,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 971 [2020-09-04 13:40:57,670 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:40:57,670 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:40:57,884 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2020-09-04 13:40:57,884 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:40:57,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:40:57,885 INFO L82 PathProgramCache]: Analyzing trace with hash -1319533531, now seen corresponding path program 1 times [2020-09-04 13:40:57,886 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:40:57,886 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533084886] [2020-09-04 13:40:57,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:40:58,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:40:58,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:40:58,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:40:58,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-04 13:40:58,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:40:58,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-04 13:40:58,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:40:58,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-09-04 13:40:58,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:40:58,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-09-04 13:40:58,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:40:58,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-09-04 13:40:58,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:40:58,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-09-04 13:40:58,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:40:58,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-09-04 13:40:58,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:40:58,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-09-04 13:40:58,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:40:59,290 INFO L134 CoverageAnalysis]: Checked inductivity of 2876 backedges. 826 proven. 71 refuted. 0 times theorem prover too weak. 1979 trivial. 0 not checked. [2020-09-04 13:40:59,291 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533084886] [2020-09-04 13:40:59,291 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1915657257] [2020-09-04 13:40:59,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-04 13:40:59,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:40:59,591 INFO L263 TraceCheckSpWp]: Trace formula consists of 1382 conjuncts, 21 conjunts are in the unsatisfiable core [2020-09-04 13:40:59,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:40:59,629 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-09-04 13:40:59,654 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-09-04 13:40:59,664 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-09-04 13:40:59,906 INFO L603 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-09-04 13:41:00,442 INFO L134 CoverageAnalysis]: Checked inductivity of 2876 backedges. 1513 proven. 10 refuted. 0 times theorem prover too weak. 1353 trivial. 0 not checked. [2020-09-04 13:41:00,443 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:41:00,443 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 19 [2020-09-04 13:41:00,443 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290063667] [2020-09-04 13:41:00,445 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-09-04 13:41:00,445 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:41:00,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-09-04 13:41:00,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2020-09-04 13:41:00,445 INFO L87 Difference]: Start difference. First operand 5972 states and 6474 transitions. Second operand 19 states. [2020-09-04 13:41:07,748 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 55 [2020-09-04 13:41:08,166 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2020-09-04 13:41:08,657 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 64 [2020-09-04 13:41:09,920 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 54 [2020-09-04 13:41:10,095 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2020-09-04 13:41:11,911 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61 [2020-09-04 13:41:12,509 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 44 [2020-09-04 13:41:13,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:41:13,884 INFO L93 Difference]: Finished difference Result 14142 states and 15296 transitions. [2020-09-04 13:41:13,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2020-09-04 13:41:13,885 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 970 [2020-09-04 13:41:13,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:41:13,903 INFO L225 Difference]: With dead ends: 14142 [2020-09-04 13:41:13,903 INFO L226 Difference]: Without dead ends: 8360 [2020-09-04 13:41:13,917 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1116 GetRequests, 1033 SyntacticMatches, 1 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 2456 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=970, Invalid=6002, Unknown=0, NotChecked=0, Total=6972 [2020-09-04 13:41:13,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8360 states. [2020-09-04 13:41:14,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8360 to 6894. [2020-09-04 13:41:14,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6894 states. [2020-09-04 13:41:14,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6894 states to 6894 states and 7330 transitions. [2020-09-04 13:41:14,049 INFO L78 Accepts]: Start accepts. Automaton has 6894 states and 7330 transitions. Word has length 970 [2020-09-04 13:41:14,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:41:14,050 INFO L479 AbstractCegarLoop]: Abstraction has 6894 states and 7330 transitions. [2020-09-04 13:41:14,050 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-09-04 13:41:14,050 INFO L276 IsEmpty]: Start isEmpty. Operand 6894 states and 7330 transitions. [2020-09-04 13:41:14,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1515 [2020-09-04 13:41:14,077 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:41:14,078 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:41:14,293 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2020-09-04 13:41:14,294 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:41:14,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:41:14,295 INFO L82 PathProgramCache]: Analyzing trace with hash 1398103861, now seen corresponding path program 1 times [2020-09-04 13:41:14,295 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:41:14,296 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693038369] [2020-09-04 13:41:14,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:41:14,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:41:14,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:41:14,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:41:14,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-04 13:41:14,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:41:14,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-04 13:41:14,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:41:14,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-09-04 13:41:14,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:41:14,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-09-04 13:41:14,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:41:14,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-09-04 13:41:14,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:41:14,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-09-04 13:41:14,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:41:14,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-09-04 13:41:14,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:41:15,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-09-04 13:41:15,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:41:15,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-09-04 13:41:15,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:41:15,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-09-04 13:41:15,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:41:15,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-09-04 13:41:15,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:41:16,589 INFO L134 CoverageAnalysis]: Checked inductivity of 6489 backedges. 2564 proven. 97 refuted. 0 times theorem prover too weak. 3828 trivial. 0 not checked. [2020-09-04 13:41:16,590 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693038369] [2020-09-04 13:41:16,590 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1186028766] [2020-09-04 13:41:16,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-04 13:41:17,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:41:17,024 INFO L263 TraceCheckSpWp]: Trace formula consists of 2039 conjuncts, 6 conjunts are in the unsatisfiable core [2020-09-04 13:41:17,042 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:41:17,083 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-09-04 13:41:17,097 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-09-04 13:41:17,101 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-09-04 13:41:17,126 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-09-04 13:41:17,127 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-09-04 13:41:17,178 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-09-04 13:41:17,233 WARN L333 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Possible infinite loop detected aux_mod_52 already exists [2020-09-04 13:41:17,233 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-04 13:41:17,234 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-04 13:41:17,234 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351114741] [2020-09-04 13:41:17,235 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-04 13:41:17,235 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:41:17,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-04 13:41:17,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-04 13:41:17,236 INFO L87 Difference]: Start difference. First operand 6894 states and 7330 transitions. Second operand 8 states. [2020-09-04 13:41:20,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:41:20,270 INFO L93 Difference]: Finished difference Result 16370 states and 17501 transitions. [2020-09-04 13:41:20,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-04 13:41:20,271 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1514 [2020-09-04 13:41:20,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:41:20,290 INFO L225 Difference]: With dead ends: 16370 [2020-09-04 13:41:20,290 INFO L226 Difference]: Without dead ends: 8738 [2020-09-04 13:41:20,306 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1511 GetRequests, 1500 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-09-04 13:41:20,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8738 states. [2020-09-04 13:41:20,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8738 to 7632. [2020-09-04 13:41:20,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7632 states. [2020-09-04 13:41:20,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7632 states to 7632 states and 8043 transitions. [2020-09-04 13:41:20,463 INFO L78 Accepts]: Start accepts. Automaton has 7632 states and 8043 transitions. Word has length 1514 [2020-09-04 13:41:20,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:41:20,464 INFO L479 AbstractCegarLoop]: Abstraction has 7632 states and 8043 transitions. [2020-09-04 13:41:20,464 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-04 13:41:20,465 INFO L276 IsEmpty]: Start isEmpty. Operand 7632 states and 8043 transitions. [2020-09-04 13:41:20,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1651 [2020-09-04 13:41:20,494 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:41:20,497 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 8, 8, 8, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:41:20,710 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2020-09-04 13:41:20,710 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:41:20,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:41:20,712 INFO L82 PathProgramCache]: Analyzing trace with hash -1464304767, now seen corresponding path program 1 times [2020-09-04 13:41:20,712 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:41:20,712 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187588543] [2020-09-04 13:41:20,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:41:21,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:41:21,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:41:21,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:41:21,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-04 13:41:21,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:41:21,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-04 13:41:21,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:41:21,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-09-04 13:41:21,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:41:21,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-09-04 13:41:21,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:41:21,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-09-04 13:41:21,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:41:21,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-09-04 13:41:21,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:41:21,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-09-04 13:41:21,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:41:21,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-09-04 13:41:21,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:41:21,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-09-04 13:41:21,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:41:21,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-09-04 13:41:21,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:41:21,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-09-04 13:41:21,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:41:21,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1410 [2020-09-04 13:41:21,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:41:21,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1537 [2020-09-04 13:41:21,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:41:23,068 INFO L134 CoverageAnalysis]: Checked inductivity of 8459 backedges. 1341 proven. 343 refuted. 0 times theorem prover too weak. 6775 trivial. 0 not checked. [2020-09-04 13:41:23,068 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187588543] [2020-09-04 13:41:23,069 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2076331779] [2020-09-04 13:41:23,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-04 13:41:23,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:41:23,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 2251 conjuncts, 11 conjunts are in the unsatisfiable core [2020-09-04 13:41:23,548 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:41:23,662 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-09-04 13:41:23,682 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-09-04 13:41:23,693 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-09-04 13:41:23,881 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-09-04 13:41:25,193 INFO L134 CoverageAnalysis]: Checked inductivity of 8459 backedges. 2514 proven. 88 refuted. 0 times theorem prover too weak. 5857 trivial. 0 not checked. [2020-09-04 13:41:25,193 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:41:25,194 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8] total 17 [2020-09-04 13:41:25,194 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313231822] [2020-09-04 13:41:25,195 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-09-04 13:41:25,196 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:41:25,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-09-04 13:41:25,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2020-09-04 13:41:25,196 INFO L87 Difference]: Start difference. First operand 7632 states and 8043 transitions. Second operand 17 states. [2020-09-04 13:41:45,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:41:45,906 INFO L93 Difference]: Finished difference Result 18032 states and 19145 transitions. [2020-09-04 13:41:45,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2020-09-04 13:41:45,906 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 1650 [2020-09-04 13:41:45,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:41:45,910 INFO L225 Difference]: With dead ends: 18032 [2020-09-04 13:41:45,911 INFO L226 Difference]: Without dead ends: 0 [2020-09-04 13:41:45,931 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1811 GetRequests, 1731 SyntacticMatches, 3 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2003 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=1148, Invalid=5014, Unknown=0, NotChecked=0, Total=6162 [2020-09-04 13:41:45,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-04 13:41:45,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-04 13:41:45,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-04 13:41:45,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-04 13:41:45,932 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1650 [2020-09-04 13:41:45,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:41:45,933 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-04 13:41:45,933 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-09-04 13:41:45,933 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-04 13:41:45,933 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-04 13:41:46,147 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:41:46,151 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-04 13:41:47,157 WARN L193 SmtUtils]: Spent 551.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 122 [2020-09-04 13:41:47,358 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 85 [2020-09-04 13:41:47,506 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 72 [2020-09-04 13:41:48,074 WARN L193 SmtUtils]: Spent 561.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 123 [2020-09-04 13:41:48,399 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 77 [2020-09-04 13:41:48,755 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 83 [2020-09-04 13:41:49,140 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 85 [2020-09-04 13:41:49,533 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 85 [2020-09-04 13:41:49,709 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 85 [2020-09-04 13:41:49,848 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 72 [2020-09-04 13:41:50,134 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 83 [2020-09-04 13:41:50,332 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 90 [2020-09-04 13:41:50,590 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 73 [2020-09-04 13:41:50,695 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 81 [2020-09-04 13:41:51,235 WARN L193 SmtUtils]: Spent 465.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 122 [2020-09-04 13:41:51,584 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 85 [2020-09-04 13:41:52,190 WARN L193 SmtUtils]: Spent 471.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 122 [2020-09-04 13:41:52,477 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 81 [2020-09-04 13:41:52,667 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 85 [2020-09-04 13:41:53,084 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 73 [2020-09-04 13:41:53,469 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 83 [2020-09-04 13:41:55,115 WARN L193 SmtUtils]: Spent 1.62 s on a formula simplification. DAG size of input: 400 DAG size of output: 389 [2020-09-04 13:41:56,770 WARN L193 SmtUtils]: Spent 1.65 s on a formula simplification. DAG size of input: 400 DAG size of output: 389 [2020-09-04 13:41:56,956 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 28 [2020-09-04 13:42:03,370 WARN L193 SmtUtils]: Spent 6.39 s on a formula simplification. DAG size of input: 569 DAG size of output: 114 [2020-09-04 13:42:07,228 WARN L193 SmtUtils]: Spent 3.80 s on a formula simplification. DAG size of input: 405 DAG size of output: 71 [2020-09-04 13:42:10,964 WARN L193 SmtUtils]: Spent 3.73 s on a formula simplification. DAG size of input: 405 DAG size of output: 71 [2020-09-04 13:42:10,969 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-04 13:42:10,970 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a24~0 |old(~a24~0)|) (= ~inputC~0 |old(~inputC~0)|) (= ~a21~0 |old(~a21~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputA~0 |old(~inputA~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputD~0 |old(~inputD~0)|) (= ~a12~0 |old(~a12~0)|) (= ~inputB~0 |old(~inputB~0)|) (= ~a15~0 |old(~a15~0)|)) [2020-09-04 13:42:10,970 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-04 13:42:10,970 INFO L268 CegarLoopResult]: For program point L432(lines 432 870) no Hoare annotation was computed. [2020-09-04 13:42:10,970 INFO L268 CegarLoopResult]: For program point L366(lines 366 870) no Hoare annotation was computed. [2020-09-04 13:42:10,970 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:42:10,970 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:42:10,971 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:42:10,971 INFO L268 CegarLoopResult]: For program point L235(lines 235 870) no Hoare annotation was computed. [2020-09-04 13:42:10,971 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-09-04 13:42:10,971 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-09-04 13:42:10,971 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-09-04 13:42:10,971 INFO L268 CegarLoopResult]: For program point L764(lines 764 870) no Hoare annotation was computed. [2020-09-04 13:42:10,971 INFO L268 CegarLoopResult]: For program point L632(lines 632 870) no Hoare annotation was computed. [2020-09-04 13:42:10,972 INFO L268 CegarLoopResult]: For program point L500(lines 500 870) no Hoare annotation was computed. [2020-09-04 13:42:10,972 INFO L268 CegarLoopResult]: For program point L831(lines 831 870) no Hoare annotation was computed. [2020-09-04 13:42:10,972 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:42:10,972 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:42:10,972 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:42:10,972 INFO L268 CegarLoopResult]: For program point L700(lines 700 870) no Hoare annotation was computed. [2020-09-04 13:42:10,972 INFO L268 CegarLoopResult]: For program point L568(lines 568 870) no Hoare annotation was computed. [2020-09-04 13:42:10,972 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-09-04 13:42:10,972 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-09-04 13:42:10,972 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-09-04 13:42:10,972 INFO L268 CegarLoopResult]: For program point L305(lines 305 870) no Hoare annotation was computed. [2020-09-04 13:42:10,973 INFO L268 CegarLoopResult]: For program point L438(lines 438 870) no Hoare annotation was computed. [2020-09-04 13:42:10,973 INFO L268 CegarLoopResult]: For program point L372(lines 372 870) no Hoare annotation was computed. [2020-09-04 13:42:10,973 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:42:10,973 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:42:10,973 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:42:10,973 INFO L268 CegarLoopResult]: For program point L241(lines 241 870) no Hoare annotation was computed. [2020-09-04 13:42:10,973 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-09-04 13:42:10,973 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-09-04 13:42:10,973 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-09-04 13:42:10,974 INFO L268 CegarLoopResult]: For program point L638(lines 638 870) no Hoare annotation was computed. [2020-09-04 13:42:10,974 INFO L268 CegarLoopResult]: For program point L506(lines 506 870) no Hoare annotation was computed. [2020-09-04 13:42:10,974 INFO L268 CegarLoopResult]: For program point L837(lines 837 870) no Hoare annotation was computed. [2020-09-04 13:42:10,974 INFO L268 CegarLoopResult]: For program point L771(lines 771 870) no Hoare annotation was computed. [2020-09-04 13:42:10,974 INFO L268 CegarLoopResult]: For program point L573(lines 573 870) no Hoare annotation was computed. [2020-09-04 13:42:10,974 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:42:10,974 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:42:10,974 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:42:10,975 INFO L268 CegarLoopResult]: For program point L706(lines 706 870) no Hoare annotation was computed. [2020-09-04 13:42:10,975 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-09-04 13:42:10,975 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-09-04 13:42:10,975 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-09-04 13:42:10,975 INFO L268 CegarLoopResult]: For program point L311(lines 311 870) no Hoare annotation was computed. [2020-09-04 13:42:10,975 INFO L268 CegarLoopResult]: For program point L444(lines 444 870) no Hoare annotation was computed. [2020-09-04 13:42:10,975 INFO L268 CegarLoopResult]: For program point L378(lines 378 870) no Hoare annotation was computed. [2020-09-04 13:42:10,975 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:42:10,976 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:42:10,976 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:42:10,976 INFO L268 CegarLoopResult]: For program point L247(lines 247 870) no Hoare annotation was computed. [2020-09-04 13:42:10,976 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-09-04 13:42:10,976 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-09-04 13:42:10,976 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-09-04 13:42:10,976 INFO L268 CegarLoopResult]: For program point L842(lines 842 870) no Hoare annotation was computed. [2020-09-04 13:42:10,976 INFO L268 CegarLoopResult]: For program point L644(lines 644 870) no Hoare annotation was computed. [2020-09-04 13:42:10,977 INFO L268 CegarLoopResult]: For program point L512(lines 512 870) no Hoare annotation was computed. [2020-09-04 13:42:10,977 INFO L268 CegarLoopResult]: For program point L777(lines 777 870) no Hoare annotation was computed. [2020-09-04 13:42:10,977 INFO L268 CegarLoopResult]: For program point L579(lines 579 870) no Hoare annotation was computed. [2020-09-04 13:42:10,977 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:42:10,977 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:42:10,977 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:42:10,977 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:42:10,977 INFO L268 CegarLoopResult]: For program point L712(lines 712 870) no Hoare annotation was computed. [2020-09-04 13:42:10,978 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-09-04 13:42:10,978 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-09-04 13:42:10,978 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-09-04 13:42:10,978 INFO L268 CegarLoopResult]: For program point L449(lines 449 870) no Hoare annotation was computed. [2020-09-04 13:42:10,978 INFO L268 CegarLoopResult]: For program point L317(lines 317 870) no Hoare annotation was computed. [2020-09-04 13:42:10,978 INFO L268 CegarLoopResult]: For program point L384(lines 384 870) no Hoare annotation was computed. [2020-09-04 13:42:10,978 INFO L268 CegarLoopResult]: For program point L252(lines 252 870) no Hoare annotation was computed. [2020-09-04 13:42:10,978 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:42:10,979 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:42:10,979 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:42:10,979 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-09-04 13:42:10,979 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-09-04 13:42:10,979 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-09-04 13:42:10,979 INFO L268 CegarLoopResult]: For program point L848(lines 848 870) no Hoare annotation was computed. [2020-09-04 13:42:10,979 INFO L268 CegarLoopResult]: For program point L650(lines 650 870) no Hoare annotation was computed. [2020-09-04 13:42:10,979 INFO L268 CegarLoopResult]: For program point L518(lines 518 870) no Hoare annotation was computed. [2020-09-04 13:42:10,980 INFO L268 CegarLoopResult]: For program point L783(lines 783 870) no Hoare annotation was computed. [2020-09-04 13:42:10,980 INFO L268 CegarLoopResult]: For program point L585(lines 585 870) no Hoare annotation was computed. [2020-09-04 13:42:10,980 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:42:10,980 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:42:10,980 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:42:10,980 INFO L268 CegarLoopResult]: For program point L718(lines 718 870) no Hoare annotation was computed. [2020-09-04 13:42:10,980 INFO L268 CegarLoopResult]: For program point L454(lines 454 870) no Hoare annotation was computed. [2020-09-04 13:42:10,980 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-09-04 13:42:10,981 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-09-04 13:42:10,981 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-09-04 13:42:10,981 INFO L268 CegarLoopResult]: For program point L323(lines 323 870) no Hoare annotation was computed. [2020-09-04 13:42:10,981 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 872) the Hoare annotation is: (let ((.cse12 (= ~a21~0 |old(~a21~0)|)) (.cse13 (not (= ~a15~0 6))) (.cse2 (= ~a24~0 1)) (.cse14 (<= ~a15~0 8)) (.cse3 (= ~a12~0 |old(~a12~0)|)) (.cse4 (= ~a15~0 |old(~a15~0)|))) (let ((.cse0 (not (<= 19 |old(~a12~0)|))) (.cse5 (not (<= 10 |old(~a21~0)|))) (.cse7 (and .cse12 .cse13 .cse2 .cse14 .cse3 .cse4)) (.cse10 (not (= 7 |old(~a21~0)|))) (.cse15 (not (<= |old(~a21~0)| 6))) (.cse9 (= 6 |old(~a15~0)|)) (.cse8 (not (<= |old(~a15~0)| 8))) (.cse1 (not (= |old(~a24~0)| 1))) (.cse11 (not (<= 8 |old(~a15~0)|))) (.cse6 (and .cse12 .cse2 .cse3 .cse4))) (and (or .cse0 .cse1 (not (= 9 |old(~a21~0)|)) (and .cse2 (= ~a21~0 9) .cse3 .cse4)) (or .cse0 .cse1 .cse5 .cse6) (or .cse0 .cse7 .cse1 .cse8 .cse9) (or .cse7 .cse1 (not (<= |old(~a12~0)| 10)) .cse8 .cse9) (or .cse0 .cse10 .cse1 .cse11 (and .cse2 .cse3 (= 7 ~a21~0) .cse4)) (or .cse1 .cse5 .cse6 (not (<= |old(~a12~0)| 11))) (or .cse7 .cse10 .cse1 .cse8 .cse9) (or (and (= 5 ~a15~0) .cse12 .cse13 .cse2 .cse14 .cse3) .cse1 (not (= 6 |old(~a21~0)|)) (not (= 5 |old(~a15~0)|))) (or .cse1 .cse6 (not (<= 13 |old(~a12~0)|)) .cse8 .cse15 (forall ((aux_div_31 Int)) (let ((.cse16 (* 5 aux_div_31))) (or (not (<= |old(~a12~0)| aux_div_31)) (not (<= 366341 .cse16)) (not (<= .cse16 366413)))))) (or (and (= ~a24~0 |old(~a24~0)|) .cse12 .cse13 .cse14 .cse3 .cse4) .cse8 .cse15 .cse9 (not (<= (+ |old(~a12~0)| 49) 0))) (or .cse1 (not (= 8 |old(~a21~0)|)) (not (= 9 |old(~a15~0)|)) (and .cse2 (= ~a21~0 8) .cse3 .cse4)) (or (not (<= 8 |old(~a21~0)|)) .cse1 .cse6 .cse8) (or .cse1 .cse11 .cse6 (not (<= 12849 |old(~a12~0)|)) (not (<= |old(~a21~0)| 7)))))) [2020-09-04 13:42:10,981 INFO L268 CegarLoopResult]: For program point L390(lines 390 870) no Hoare annotation was computed. [2020-09-04 13:42:10,981 INFO L268 CegarLoopResult]: For program point L258(lines 258 870) no Hoare annotation was computed. [2020-09-04 13:42:10,981 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:42:10,981 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:42:10,982 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:42:10,982 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-09-04 13:42:10,982 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-09-04 13:42:10,982 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-09-04 13:42:10,982 INFO L268 CegarLoopResult]: For program point L854(lines 854 870) no Hoare annotation was computed. [2020-09-04 13:42:10,982 INFO L268 CegarLoopResult]: For program point L656(lines 656 870) no Hoare annotation was computed. [2020-09-04 13:42:10,982 INFO L268 CegarLoopResult]: For program point L524(lines 524 870) no Hoare annotation was computed. [2020-09-04 13:42:10,982 INFO L268 CegarLoopResult]: For program point L789(lines 789 870) no Hoare annotation was computed. [2020-09-04 13:42:10,982 INFO L268 CegarLoopResult]: For program point L591(lines 591 870) no Hoare annotation was computed. [2020-09-04 13:42:10,982 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:42:10,982 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:42:10,982 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:42:10,982 INFO L268 CegarLoopResult]: For program point L724(lines 724 870) no Hoare annotation was computed. [2020-09-04 13:42:10,982 INFO L268 CegarLoopResult]: For program point L460(lines 460 870) no Hoare annotation was computed. [2020-09-04 13:42:10,983 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-09-04 13:42:10,983 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-09-04 13:42:10,983 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-09-04 13:42:10,983 INFO L268 CegarLoopResult]: For program point L329(lines 329 870) no Hoare annotation was computed. [2020-09-04 13:42:10,983 INFO L268 CegarLoopResult]: For program point L396(lines 396 870) no Hoare annotation was computed. [2020-09-04 13:42:10,983 INFO L268 CegarLoopResult]: For program point L264(lines 264 870) no Hoare annotation was computed. [2020-09-04 13:42:10,983 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:42:10,983 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:42:10,983 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:42:10,983 INFO L268 CegarLoopResult]: For program point L859(lines 859 870) no Hoare annotation was computed. [2020-09-04 13:42:10,983 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-09-04 13:42:10,983 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-09-04 13:42:10,983 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-09-04 13:42:10,984 INFO L268 CegarLoopResult]: For program point L662(lines 662 870) no Hoare annotation was computed. [2020-09-04 13:42:10,984 INFO L268 CegarLoopResult]: For program point L530(lines 530 870) no Hoare annotation was computed. [2020-09-04 13:42:10,984 INFO L268 CegarLoopResult]: For program point L795(lines 795 870) no Hoare annotation was computed. [2020-09-04 13:42:10,984 INFO L268 CegarLoopResult]: For program point L597(lines 597 870) no Hoare annotation was computed. [2020-09-04 13:42:10,984 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:42:10,984 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:42:10,984 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:42:10,984 INFO L268 CegarLoopResult]: For program point L730(lines 730 870) no Hoare annotation was computed. [2020-09-04 13:42:10,984 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-09-04 13:42:10,984 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-09-04 13:42:10,984 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-09-04 13:42:10,984 INFO L268 CegarLoopResult]: For program point L467(lines 467 870) no Hoare annotation was computed. [2020-09-04 13:42:10,984 INFO L268 CegarLoopResult]: For program point L335(lines 335 870) no Hoare annotation was computed. [2020-09-04 13:42:10,985 INFO L268 CegarLoopResult]: For program point L269(lines 269 870) no Hoare annotation was computed. [2020-09-04 13:42:10,985 INFO L268 CegarLoopResult]: For program point L402(lines 402 870) no Hoare annotation was computed. [2020-09-04 13:42:10,985 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:42:10,985 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:42:10,985 INFO L268 CegarLoopResult]: For program point L865(lines 865 870) no Hoare annotation was computed. [2020-09-04 13:42:10,985 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-09-04 13:42:10,985 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-09-04 13:42:10,985 INFO L268 CegarLoopResult]: For program point L668(lines 668 870) no Hoare annotation was computed. [2020-09-04 13:42:10,985 INFO L268 CegarLoopResult]: For program point L536(lines 536 870) no Hoare annotation was computed. [2020-09-04 13:42:10,985 INFO L268 CegarLoopResult]: For program point L801(lines 801 870) no Hoare annotation was computed. [2020-09-04 13:42:10,985 INFO L268 CegarLoopResult]: For program point L735(lines 735 870) no Hoare annotation was computed. [2020-09-04 13:42:10,985 INFO L268 CegarLoopResult]: For program point L603(lines 603 870) no Hoare annotation was computed. [2020-09-04 13:42:10,985 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 127) no Hoare annotation was computed. [2020-09-04 13:42:10,986 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:42:10,986 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:42:10,986 INFO L268 CegarLoopResult]: For program point L472(lines 472 870) no Hoare annotation was computed. [2020-09-04 13:42:10,986 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-09-04 13:42:10,986 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-09-04 13:42:10,986 INFO L268 CegarLoopResult]: For program point L341(lines 341 870) no Hoare annotation was computed. [2020-09-04 13:42:10,986 INFO L268 CegarLoopResult]: For program point L275(lines 275 870) no Hoare annotation was computed. [2020-09-04 13:42:10,986 INFO L268 CegarLoopResult]: For program point L408(lines 408 870) no Hoare annotation was computed. [2020-09-04 13:42:10,987 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:42:10,987 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:42:10,987 INFO L268 CegarLoopResult]: For program point L541(lines 541 870) no Hoare annotation was computed. [2020-09-04 13:42:10,987 INFO L268 CegarLoopResult]: For program point L211(lines 211 870) no Hoare annotation was computed. [2020-09-04 13:42:10,987 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-09-04 13:42:10,987 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-09-04 13:42:10,987 INFO L268 CegarLoopResult]: For program point L674(lines 674 870) no Hoare annotation was computed. [2020-09-04 13:42:10,987 INFO L268 CegarLoopResult]: For program point L807(lines 807 870) no Hoare annotation was computed. [2020-09-04 13:42:10,987 INFO L268 CegarLoopResult]: For program point L741(lines 741 870) no Hoare annotation was computed. [2020-09-04 13:42:10,988 INFO L268 CegarLoopResult]: For program point L609(lines 609 870) no Hoare annotation was computed. [2020-09-04 13:42:10,988 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:42:10,988 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:42:10,988 INFO L268 CegarLoopResult]: For program point L478(lines 478 870) no Hoare annotation was computed. [2020-09-04 13:42:10,988 INFO L268 CegarLoopResult]: For program point L280(lines 280 870) no Hoare annotation was computed. [2020-09-04 13:42:10,988 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-09-04 13:42:10,988 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-09-04 13:42:10,988 INFO L268 CegarLoopResult]: For program point L677(lines 677 870) no Hoare annotation was computed. [2020-09-04 13:42:10,988 INFO L268 CegarLoopResult]: For program point L347(lines 347 870) no Hoare annotation was computed. [2020-09-04 13:42:10,989 INFO L268 CegarLoopResult]: For program point L414(lines 414 870) no Hoare annotation was computed. [2020-09-04 13:42:10,989 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:42:10,989 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:42:10,989 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:42:10,989 INFO L268 CegarLoopResult]: For program point L547(lines 547 870) no Hoare annotation was computed. [2020-09-04 13:42:10,989 INFO L268 CegarLoopResult]: For program point L217(lines 217 870) no Hoare annotation was computed. [2020-09-04 13:42:10,989 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-09-04 13:42:10,989 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-09-04 13:42:10,989 INFO L268 CegarLoopResult]: For program point L747(lines 747 870) no Hoare annotation was computed. [2020-09-04 13:42:10,989 INFO L268 CegarLoopResult]: For program point L615(lines 615 870) no Hoare annotation was computed. [2020-09-04 13:42:10,990 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:42:10,990 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:42:10,990 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-09-04 13:42:10,990 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:42:10,990 INFO L268 CegarLoopResult]: For program point L814(lines 814 870) no Hoare annotation was computed. [2020-09-04 13:42:10,990 INFO L268 CegarLoopResult]: For program point L484(lines 484 870) no Hoare annotation was computed. [2020-09-04 13:42:10,990 INFO L268 CegarLoopResult]: For program point L286(lines 286 870) no Hoare annotation was computed. [2020-09-04 13:42:10,990 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-09-04 13:42:10,991 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-09-04 13:42:10,991 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-09-04 13:42:10,991 INFO L268 CegarLoopResult]: For program point L683(lines 683 870) no Hoare annotation was computed. [2020-09-04 13:42:10,991 INFO L268 CegarLoopResult]: For program point L353(lines 353 870) no Hoare annotation was computed. [2020-09-04 13:42:10,991 INFO L268 CegarLoopResult]: For program point L552(lines 552 870) no Hoare annotation was computed. [2020-09-04 13:42:10,991 INFO L268 CegarLoopResult]: For program point L420(lines 420 870) no Hoare annotation was computed. [2020-09-04 13:42:10,991 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:42:10,991 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:42:10,992 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:42:10,992 INFO L268 CegarLoopResult]: For program point L223(lines 223 870) no Hoare annotation was computed. [2020-09-04 13:42:10,992 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-09-04 13:42:10,992 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-09-04 13:42:10,992 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-09-04 13:42:10,992 INFO L268 CegarLoopResult]: For program point L752(lines 752 870) no Hoare annotation was computed. [2020-09-04 13:42:10,992 INFO L268 CegarLoopResult]: For program point L819(lines 819 870) no Hoare annotation was computed. [2020-09-04 13:42:10,992 INFO L268 CegarLoopResult]: For program point L621(lines 621 870) no Hoare annotation was computed. [2020-09-04 13:42:10,993 INFO L268 CegarLoopResult]: For program point L555(lines 555 870) no Hoare annotation was computed. [2020-09-04 13:42:10,993 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:42:10,993 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:42:10,993 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:42:10,993 INFO L268 CegarLoopResult]: For program point L688(lines 688 870) no Hoare annotation was computed. [2020-09-04 13:42:10,993 INFO L268 CegarLoopResult]: For program point L490(lines 490 870) no Hoare annotation was computed. [2020-09-04 13:42:10,993 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-09-04 13:42:10,993 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-09-04 13:42:10,994 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-09-04 13:42:10,994 INFO L268 CegarLoopResult]: For program point L359(lines 359 870) no Hoare annotation was computed. [2020-09-04 13:42:10,994 INFO L268 CegarLoopResult]: For program point L293(lines 293 870) no Hoare annotation was computed. [2020-09-04 13:42:10,994 INFO L268 CegarLoopResult]: For program point L426(lines 426 870) no Hoare annotation was computed. [2020-09-04 13:42:10,994 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:42:10,994 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:42:10,994 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:42:10,994 INFO L268 CegarLoopResult]: For program point L229(lines 229 870) no Hoare annotation was computed. [2020-09-04 13:42:10,995 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-09-04 13:42:10,995 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-09-04 13:42:10,995 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-09-04 13:42:10,995 INFO L268 CegarLoopResult]: For program point L758(lines 758 870) no Hoare annotation was computed. [2020-09-04 13:42:10,995 INFO L268 CegarLoopResult]: For program point L626(lines 626 870) no Hoare annotation was computed. [2020-09-04 13:42:10,995 INFO L268 CegarLoopResult]: For program point L825(lines 825 870) no Hoare annotation was computed. [2020-09-04 13:42:10,995 INFO L268 CegarLoopResult]: For program point L561(lines 561 870) no Hoare annotation was computed. [2020-09-04 13:42:10,995 INFO L268 CegarLoopResult]: For program point L495(lines 495 870) no Hoare annotation was computed. [2020-09-04 13:42:10,995 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:42:10,996 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:42:10,996 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:42:10,996 INFO L268 CegarLoopResult]: For program point L694(lines 694 870) no Hoare annotation was computed. [2020-09-04 13:42:10,996 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-09-04 13:42:10,996 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-09-04 13:42:10,996 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-09-04 13:42:10,996 INFO L268 CegarLoopResult]: For program point L299(lines 299 870) no Hoare annotation was computed. [2020-09-04 13:42:10,996 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-04 13:42:10,997 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= (+ ~a12~0 49) 0) (= ~a15~0 8) (= ~a24~0 1) (= 7 ~a21~0)) [2020-09-04 13:42:10,997 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-04 13:42:10,997 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-04 13:42:10,997 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 874 890) the Hoare annotation is: (or (not (= 7 |old(~a21~0)|)) (not (= |old(~a24~0)| 1)) (and (= ~a15~0 8) (= ~a24~0 1) (= ~a12~0 |old(~a12~0)|) (= 7 ~a21~0)) (not (= 8 |old(~a15~0)|)) (not (<= (+ |old(~a12~0)| 49) 0))) [2020-09-04 13:42:10,997 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 874 890) no Hoare annotation was computed. [2020-09-04 13:42:10,997 INFO L264 CegarLoopResult]: At program point L888(line 888) the Hoare annotation is: (let ((.cse2 (<= 19 ~a12~0)) (.cse3 (<= 8 ~a15~0)) (.cse7 (<= ~a21~0 6)) (.cse5 (not (= ~a15~0 6))) (.cse4 (= 7 ~a21~0)) (.cse6 (<= ~a15~0 8)) (.cse0 (= ~a24~0 1)) (.cse1 (<= 10 ~a21~0))) (or (and .cse0 .cse1 .cse2) (not (= |old(~a24~0)| 1)) (and .cse0 (= ~a21~0 8) (= ~a15~0 9)) (and .cse0 (= ~a21~0 9) .cse2) (not (= 8 |old(~a15~0)|)) (and .cse3 .cse0 .cse4 .cse2) (and (<= (+ ~a12~0 49) 0) .cse5 .cse6 .cse7) (not (<= (+ |old(~a12~0)| 49) 0)) (and (<= ~a12~0 10) .cse5 .cse0 .cse6) (not (= 7 |old(~a21~0)|)) (and .cse5 .cse0 .cse6 .cse2) (and (<= 13 ~a12~0) .cse0 .cse6 (<= ~a12~0 73282) .cse7) (and .cse3 (<= 12849 ~a12~0) .cse0 .cse7) (and .cse0 .cse5 .cse6 .cse4) (and (= 5 ~a15~0) (= ~a21~0 6) .cse0) (and (<= 8 ~a21~0) .cse0 .cse6) (and (<= ~a12~0 11) .cse0 .cse1))) [2020-09-04 13:42:10,998 INFO L268 CegarLoopResult]: For program point L888-1(line 888) no Hoare annotation was computed. [2020-09-04 13:42:10,998 INFO L268 CegarLoopResult]: For program point L885(line 885) no Hoare annotation was computed. [2020-09-04 13:42:10,998 INFO L264 CegarLoopResult]: At program point L880-2(lines 880 889) the Hoare annotation is: (let ((.cse2 (<= 19 ~a12~0)) (.cse3 (<= 8 ~a15~0)) (.cse7 (<= ~a21~0 6)) (.cse5 (not (= ~a15~0 6))) (.cse4 (= 7 ~a21~0)) (.cse6 (<= ~a15~0 8)) (.cse0 (= ~a24~0 1)) (.cse1 (<= 10 ~a21~0))) (or (and .cse0 .cse1 .cse2) (not (= |old(~a24~0)| 1)) (and .cse0 (= ~a21~0 8) (= ~a15~0 9)) (and .cse0 (= ~a21~0 9) .cse2) (not (= 8 |old(~a15~0)|)) (and .cse3 .cse0 .cse4 .cse2) (and (<= (+ ~a12~0 49) 0) .cse5 .cse6 .cse7) (not (<= (+ |old(~a12~0)| 49) 0)) (and (<= ~a12~0 10) .cse5 .cse0 .cse6) (not (= 7 |old(~a21~0)|)) (and .cse5 .cse0 .cse6 .cse2) (and (<= 13 ~a12~0) .cse0 .cse6 (<= ~a12~0 73282) .cse7) (and .cse3 (<= 12849 ~a12~0) .cse0 .cse7) (and .cse0 .cse5 .cse6 .cse4) (and (= 5 ~a15~0) (= ~a21~0 6) .cse0) (and (<= 8 ~a21~0) .cse0 .cse6) (and (<= ~a12~0 11) .cse0 .cse1))) [2020-09-04 13:42:10,998 INFO L268 CegarLoopResult]: For program point L880-3(lines 874 890) no Hoare annotation was computed. [2020-09-04 13:42:11,024 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 01:42:11 BoogieIcfgContainer [2020-09-04 13:42:11,024 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 13:42:11,026 INFO L168 Benchmark]: Toolchain (without parser) took 156504.33 ms. Allocated memory was 138.4 MB in the beginning and 2.5 GB in the end (delta: 2.3 GB). Free memory was 98.3 MB in the beginning and 1.8 GB in the end (delta: -1.7 GB). Peak memory consumption was 2.2 GB. Max. memory is 7.1 GB. [2020-09-04 13:42:11,027 INFO L168 Benchmark]: CDTParser took 1.80 ms. Allocated memory is still 138.4 MB. Free memory was 118.7 MB in the beginning and 118.5 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-04 13:42:11,027 INFO L168 Benchmark]: CACSL2BoogieTranslator took 914.34 ms. Allocated memory was 138.4 MB in the beginning and 203.4 MB in the end (delta: 65.0 MB). Free memory was 98.1 MB in the beginning and 165.4 MB in the end (delta: -67.3 MB). Peak memory consumption was 37.5 MB. Max. memory is 7.1 GB. [2020-09-04 13:42:11,028 INFO L168 Benchmark]: Boogie Preprocessor took 159.42 ms. Allocated memory is still 203.4 MB. Free memory was 165.4 MB in the beginning and 159.7 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 7.1 GB. [2020-09-04 13:42:11,028 INFO L168 Benchmark]: RCFGBuilder took 1770.40 ms. Allocated memory was 203.4 MB in the beginning and 234.9 MB in the end (delta: 31.5 MB). Free memory was 159.7 MB in the beginning and 155.3 MB in the end (delta: 4.4 MB). Peak memory consumption was 80.6 MB. Max. memory is 7.1 GB. [2020-09-04 13:42:11,029 INFO L168 Benchmark]: TraceAbstraction took 153654.77 ms. Allocated memory was 234.9 MB in the beginning and 2.5 GB in the end (delta: 2.2 GB). Free memory was 153.8 MB in the beginning and 1.8 GB in the end (delta: -1.6 GB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. [2020-09-04 13:42:11,032 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.80 ms. Allocated memory is still 138.4 MB. Free memory was 118.7 MB in the beginning and 118.5 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 914.34 ms. Allocated memory was 138.4 MB in the beginning and 203.4 MB in the end (delta: 65.0 MB). Free memory was 98.1 MB in the beginning and 165.4 MB in the end (delta: -67.3 MB). Peak memory consumption was 37.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 159.42 ms. Allocated memory is still 203.4 MB. Free memory was 165.4 MB in the beginning and 159.7 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1770.40 ms. Allocated memory was 203.4 MB in the beginning and 234.9 MB in the end (delta: 31.5 MB). Free memory was 159.7 MB in the beginning and 155.3 MB in the end (delta: 4.4 MB). Peak memory consumption was 80.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 153654.77 ms. Allocated memory was 234.9 MB in the beginning and 2.5 GB in the end (delta: 2.2 GB). Free memory was 153.8 MB in the beginning and 1.8 GB in the end (delta: -1.6 GB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 127]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 880]: Loop Invariant Derived loop invariant: (((((((((((((((((a24 == 1 && 10 <= a21) && 19 <= a12) || !(\old(a24) == 1)) || ((a24 == 1 && a21 == 8) && a15 == 9)) || ((a24 == 1 && a21 == 9) && 19 <= a12)) || !(8 == \old(a15))) || (((8 <= a15 && a24 == 1) && 7 == a21) && 19 <= a12)) || (((a12 + 49 <= 0 && !(a15 == 6)) && a15 <= 8) && a21 <= 6)) || !(\old(a12) + 49 <= 0)) || (((a12 <= 10 && !(a15 == 6)) && a24 == 1) && a15 <= 8)) || !(7 == \old(a21))) || (((!(a15 == 6) && a24 == 1) && a15 <= 8) && 19 <= a12)) || ((((13 <= a12 && a24 == 1) && a15 <= 8) && a12 <= 73282) && a21 <= 6)) || (((8 <= a15 && 12849 <= a12) && a24 == 1) && a21 <= 6)) || (((a24 == 1 && !(a15 == 6)) && a15 <= 8) && 7 == a21)) || ((5 == a15 && a21 == 6) && a24 == 1)) || ((8 <= a21 && a24 == 1) && a15 <= 8)) || ((a12 <= 11 && a24 == 1) && 10 <= a21) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 254 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 128.6s, OverallIterations: 17, TraceHistogramMax: 14, AutomataDifference: 94.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 24.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 945 SDtfs, 38288 SDslu, 1724 SDs, 0 SdLazy, 43220 SolverSat, 5773 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 55.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11415 GetRequests, 10901 SyntacticMatches, 10 SemanticMatches, 504 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 7516 ImplicationChecksByTransitivity, 19.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7632occurred in iteration=16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.5s AutomataMinimizationTime, 17 MinimizatonAttempts, 8757 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 398 PreInvPairs, 548 NumberOfFragments, 855 HoareAnnotationTreeSize, 398 FomulaSimplifications, 56858994 FormulaSimplificationTreeSizeReduction, 10.6s HoareSimplificationTime, 7 FomulaSimplificationsInter, 16644742 FormulaSimplificationTreeSizeReductionInter, 14.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.7s SsaConstructionTime, 4.1s SatisfiabilityAnalysisTime, 15.9s InterpolantComputationTime, 19800 NumberOfCodeBlocks, 19800 NumberOfCodeBlocksAsserted, 30 NumberOfCheckSat, 19770 ConstructedInterpolants, 3 QuantifiedInterpolants, 35604955 SizeOfPredicates, 10 NumberOfNonLiveVariables, 13264 ConjunctsInSsa, 113 ConjunctsInUnsatCore, 30 InterpolantComputations, 5 PerfectInterpolantSequences, 54794/56861 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...