/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks.term.scoring.heuristic BIGGEST_EQUIVALENCE_CLASS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 --traceabstraction.trace.refinement.strategy CAMEL_SMT_AM -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label51.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-79ed534 [2020-07-20 05:57:46,387 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-07-20 05:57:46,430 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 05:57:46,431 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 05:57:46,432 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 05:57:46,433 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 05:57:46,434 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 05:57:46,436 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 05:57:46,440 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 05:57:46,443 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 05:57:46,445 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 05:57:46,449 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 05:57:46,451 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 05:57:46,453 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 05:57:46,458 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 05:57:46,473 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 05:57:46,474 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 05:57:46,476 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 05:57:46,477 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-20 05:57:46,492 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 05:57:46,492 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 05:57:46,494 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 05:57:46,494 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 05:57:46,494 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 05:57:46,494 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 05:57:46,495 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 05:57:46,495 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 05:57:46,495 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 05:57:46,495 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 05:57:46,495 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 05:57:46,496 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 05:57:46,496 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 05:57:46,496 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 05:57:46,496 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 05:57:46,496 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 05:57:46,497 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 05:57:46,497 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 05:57:46,497 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 05:57:46,497 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 05:57:46,497 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 05:57:46,498 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 05:57:46,498 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 05:57:46,498 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 05:57:46,498 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 05:57:46,499 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 05:57:46,499 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 05:57:46,499 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 05:57:46,499 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 05:57:46,499 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> BIGGEST_EQUIVALENCE_CLASS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> CAMEL_SMT_AM [2020-07-20 05:57:46,831 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 05:57:46,846 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 05:57:46,850 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 05:57:46,851 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 05:57:46,852 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 05:57:46,853 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label51.c [2020-07-20 05:57:46,932 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bad81b713/57c3a6b83266431cb1c3e5312bdb3b3c/FLAG1da5f0b2c [2020-07-20 05:57:47,505 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 05:57:47,506 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label51.c [2020-07-20 05:57:47,530 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bad81b713/57c3a6b83266431cb1c3e5312bdb3b3c/FLAG1da5f0b2c [2020-07-20 05:57:47,725 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bad81b713/57c3a6b83266431cb1c3e5312bdb3b3c [2020-07-20 05:57:47,734 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 05:57:47,738 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 05:57:47,739 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 05:57:47,739 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 05:57:47,743 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 05:57:47,744 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 05:57:47" (1/1) ... [2020-07-20 05:57:47,747 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@186aea6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:57:47, skipping insertion in model container [2020-07-20 05:57:47,748 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 05:57:47" (1/1) ... [2020-07-20 05:57:47,756 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 05:57:47,807 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 05:57:48,298 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 05:57:48,307 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 05:57:48,534 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 05:57:48,553 INFO L208 MainTranslator]: Completed translation [2020-07-20 05:57:48,553 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:57:48 WrapperNode [2020-07-20 05:57:48,553 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 05:57:48,554 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 05:57:48,554 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 05:57:48,554 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 05:57:48,568 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:57:48" (1/1) ... [2020-07-20 05:57:48,568 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:57:48" (1/1) ... [2020-07-20 05:57:48,589 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:57:48" (1/1) ... [2020-07-20 05:57:48,590 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:57:48" (1/1) ... [2020-07-20 05:57:48,629 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:57:48" (1/1) ... [2020-07-20 05:57:48,654 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:57:48" (1/1) ... [2020-07-20 05:57:48,663 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:57:48" (1/1) ... [2020-07-20 05:57:48,672 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 05:57:48,673 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 05:57:48,673 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 05:57:48,673 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 05:57:48,674 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:57:48" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 05:57:48,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 05:57:48,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 05:57:48,755 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-20 05:57:48,755 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 05:57:48,755 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-20 05:57:48,756 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 05:57:48,756 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 05:57:48,757 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-20 05:57:48,757 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 05:57:48,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 05:57:48,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 05:57:50,121 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 05:57:50,122 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-20 05:57:50,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 05:57:50 BoogieIcfgContainer [2020-07-20 05:57:50,129 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 05:57:50,131 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 05:57:50,131 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 05:57:50,134 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 05:57:50,135 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 05:57:47" (1/3) ... [2020-07-20 05:57:50,135 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d779da9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 05:57:50, skipping insertion in model container [2020-07-20 05:57:50,136 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:57:48" (2/3) ... [2020-07-20 05:57:50,136 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d779da9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 05:57:50, skipping insertion in model container [2020-07-20 05:57:50,136 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 05:57:50" (3/3) ... [2020-07-20 05:57:50,138 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label51.c [2020-07-20 05:57:50,150 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-20 05:57:50,159 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 05:57:50,176 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 05:57:50,204 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 05:57:50,204 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 05:57:50,204 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-20 05:57:50,205 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 05:57:50,205 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 05:57:50,205 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 05:57:50,205 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 05:57:50,206 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 05:57:50,234 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2020-07-20 05:57:50,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-07-20 05:57:50,246 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 05:57:50,247 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 05:57:50,248 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 05:57:50,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 05:57:50,256 INFO L82 PathProgramCache]: Analyzing trace with hash -689906609, now seen corresponding path program 1 times [2020-07-20 05:57:50,267 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 05:57:50,268 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233972018] [2020-07-20 05:57:50,268 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4aa55784 [2020-07-20 05:57:50,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:57:50,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:57:50,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 05:57:50,697 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233972018] [2020-07-20 05:57:50,699 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 05:57:50,699 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 05:57:50,700 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579336888] [2020-07-20 05:57:50,717 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 05:57:50,717 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 05:57:50,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 05:57:50,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 05:57:50,742 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 4 states. [2020-07-20 05:57:52,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 05:57:52,402 INFO L93 Difference]: Finished difference Result 596 states and 1022 transitions. [2020-07-20 05:57:52,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 05:57:52,405 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 56 [2020-07-20 05:57:52,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 05:57:52,444 INFO L225 Difference]: With dead ends: 596 [2020-07-20 05:57:52,445 INFO L226 Difference]: Without dead ends: 302 [2020-07-20 05:57:52,457 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-20 05:57:52,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2020-07-20 05:57:52,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 296. [2020-07-20 05:57:52,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 296 states. [2020-07-20 05:57:52,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 448 transitions. [2020-07-20 05:57:52,545 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 448 transitions. Word has length 56 [2020-07-20 05:57:52,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 05:57:52,546 INFO L479 AbstractCegarLoop]: Abstraction has 296 states and 448 transitions. [2020-07-20 05:57:52,546 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 05:57:52,546 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 448 transitions. [2020-07-20 05:57:52,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-07-20 05:57:52,552 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 05:57:52,553 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, 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] [2020-07-20 05:57:52,553 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-20 05:57:52,554 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 05:57:52,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 05:57:52,554 INFO L82 PathProgramCache]: Analyzing trace with hash 371731122, now seen corresponding path program 1 times [2020-07-20 05:57:52,554 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 05:57:52,555 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37990034] [2020-07-20 05:57:52,555 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4aa55784 [2020-07-20 05:57:52,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:57:52,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:57:52,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:57:52,884 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 48 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 05:57:52,884 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37990034] [2020-07-20 05:57:52,885 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [85447227] [2020-07-20 05:57:52,885 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@44ec9905 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 05:57:53,017 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@44ec9905 issued 4 check-sat command(s) [2020-07-20 05:57:53,017 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 05:57:53,020 INFO L263 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 05:57:53,031 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 05:57:53,104 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 05:57:53,104 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-20 05:57:53,105 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2020-07-20 05:57:53,106 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175246770] [2020-07-20 05:57:53,107 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 05:57:53,107 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 05:57:53,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 05:57:53,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-20 05:57:53,108 INFO L87 Difference]: Start difference. First operand 296 states and 448 transitions. Second operand 3 states. [2020-07-20 05:57:53,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 05:57:53,877 INFO L93 Difference]: Finished difference Result 874 states and 1344 transitions. [2020-07-20 05:57:53,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 05:57:53,878 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 126 [2020-07-20 05:57:53,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 05:57:53,883 INFO L225 Difference]: With dead ends: 874 [2020-07-20 05:57:53,884 INFO L226 Difference]: Without dead ends: 584 [2020-07-20 05:57:53,885 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-20 05:57:53,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2020-07-20 05:57:53,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 584. [2020-07-20 05:57:53,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 584 states. [2020-07-20 05:57:53,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 857 transitions. [2020-07-20 05:57:53,957 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 857 transitions. Word has length 126 [2020-07-20 05:57:53,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 05:57:53,962 INFO L479 AbstractCegarLoop]: Abstraction has 584 states and 857 transitions. [2020-07-20 05:57:53,962 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 05:57:53,962 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 857 transitions. [2020-07-20 05:57:53,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-07-20 05:57:53,969 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 05:57:53,970 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, 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] [2020-07-20 05:57:54,187 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-07-20 05:57:54,188 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 05:57:54,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 05:57:54,188 INFO L82 PathProgramCache]: Analyzing trace with hash 1345148817, now seen corresponding path program 1 times [2020-07-20 05:57:54,189 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 05:57:54,190 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149988400] [2020-07-20 05:57:54,190 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4aa55784 [2020-07-20 05:57:54,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:57:54,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:57:54,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:57:54,478 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 05:57:54,479 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149988400] [2020-07-20 05:57:54,479 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 05:57:54,479 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 05:57:54,479 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508046015] [2020-07-20 05:57:54,480 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 05:57:54,480 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 05:57:54,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 05:57:54,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-07-20 05:57:54,481 INFO L87 Difference]: Start difference. First operand 584 states and 857 transitions. Second operand 7 states. [2020-07-20 05:57:56,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 05:57:56,065 INFO L93 Difference]: Finished difference Result 1325 states and 1952 transitions. [2020-07-20 05:57:56,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 05:57:56,072 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 133 [2020-07-20 05:57:56,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 05:57:56,082 INFO L225 Difference]: With dead ends: 1325 [2020-07-20 05:57:56,082 INFO L226 Difference]: Without dead ends: 747 [2020-07-20 05:57:56,085 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-07-20 05:57:56,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 747 states. [2020-07-20 05:57:56,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 747 to 741. [2020-07-20 05:57:56,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 741 states. [2020-07-20 05:57:56,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 741 states to 741 states and 1054 transitions. [2020-07-20 05:57:56,129 INFO L78 Accepts]: Start accepts. Automaton has 741 states and 1054 transitions. Word has length 133 [2020-07-20 05:57:56,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 05:57:56,130 INFO L479 AbstractCegarLoop]: Abstraction has 741 states and 1054 transitions. [2020-07-20 05:57:56,130 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 05:57:56,130 INFO L276 IsEmpty]: Start isEmpty. Operand 741 states and 1054 transitions. [2020-07-20 05:57:56,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2020-07-20 05:57:56,137 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 05:57:56,137 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 05:57:56,137 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-20 05:57:56,137 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 05:57:56,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 05:57:56,138 INFO L82 PathProgramCache]: Analyzing trace with hash 648501774, now seen corresponding path program 1 times [2020-07-20 05:57:56,138 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 05:57:56,139 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58411695] [2020-07-20 05:57:56,139 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4aa55784 [2020-07-20 05:57:56,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:57:56,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:57:56,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:57:56,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:57:56,453 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 90 proven. 8 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-07-20 05:57:56,453 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58411695] [2020-07-20 05:57:56,454 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1807244451] [2020-07-20 05:57:56,454 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@574ed520 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 05:57:56,612 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@574ed520 issued 4 check-sat command(s) [2020-07-20 05:57:56,612 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 05:57:56,614 INFO L263 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 05:57:56,621 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 05:57:56,681 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-07-20 05:57:56,682 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-20 05:57:56,682 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2020-07-20 05:57:56,683 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952538248] [2020-07-20 05:57:56,684 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 05:57:56,684 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 05:57:56,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 05:57:56,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-07-20 05:57:56,685 INFO L87 Difference]: Start difference. First operand 741 states and 1054 transitions. Second operand 3 states. [2020-07-20 05:57:57,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 05:57:57,483 INFO L93 Difference]: Finished difference Result 1329 states and 1985 transitions. [2020-07-20 05:57:57,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 05:57:57,484 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 203 [2020-07-20 05:57:57,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 05:57:57,496 INFO L225 Difference]: With dead ends: 1329 [2020-07-20 05:57:57,497 INFO L226 Difference]: Without dead ends: 1327 [2020-07-20 05:57:57,498 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-07-20 05:57:57,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1327 states. [2020-07-20 05:57:57,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1327 to 1180. [2020-07-20 05:57:57,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1180 states. [2020-07-20 05:57:57,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1180 states to 1180 states and 1736 transitions. [2020-07-20 05:57:57,568 INFO L78 Accepts]: Start accepts. Automaton has 1180 states and 1736 transitions. Word has length 203 [2020-07-20 05:57:57,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 05:57:57,569 INFO L479 AbstractCegarLoop]: Abstraction has 1180 states and 1736 transitions. [2020-07-20 05:57:57,570 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 05:57:57,571 INFO L276 IsEmpty]: Start isEmpty. Operand 1180 states and 1736 transitions. [2020-07-20 05:57:57,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2020-07-20 05:57:57,579 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 05:57:57,580 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, 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, 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] [2020-07-20 05:57:57,787 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 05:57:57,787 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 05:57:57,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 05:57:57,788 INFO L82 PathProgramCache]: Analyzing trace with hash -1400841554, now seen corresponding path program 1 times [2020-07-20 05:57:57,788 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 05:57:57,789 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767957360] [2020-07-20 05:57:57,789 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4aa55784 [2020-07-20 05:57:57,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:57:57,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:57:57,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:57:58,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:57:58,272 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 165 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-20 05:57:58,273 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767957360] [2020-07-20 05:57:58,273 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [430574482] [2020-07-20 05:57:58,273 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@37ae33bc No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 05:57:58,428 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@37ae33bc issued 4 check-sat command(s) [2020-07-20 05:57:58,428 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 05:57:58,431 INFO L263 TraceCheckSpWp]: Trace formula consists of 427 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 05:57:58,451 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 05:57:58,585 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 166 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 05:57:58,585 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 05:57:58,586 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 10 [2020-07-20 05:57:58,586 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997756942] [2020-07-20 05:57:58,587 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-20 05:57:58,588 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 05:57:58,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-20 05:57:58,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-07-20 05:57:58,589 INFO L87 Difference]: Start difference. First operand 1180 states and 1736 transitions. Second operand 10 states. [2020-07-20 05:58:02,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 05:58:02,651 INFO L93 Difference]: Finished difference Result 3668 states and 6214 transitions. [2020-07-20 05:58:02,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-07-20 05:58:02,652 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 251 [2020-07-20 05:58:02,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 05:58:02,674 INFO L225 Difference]: With dead ends: 3668 [2020-07-20 05:58:02,676 INFO L226 Difference]: Without dead ends: 2637 [2020-07-20 05:58:02,682 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=140, Invalid=412, Unknown=0, NotChecked=0, Total=552 [2020-07-20 05:58:02,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2637 states. [2020-07-20 05:58:02,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2637 to 1218. [2020-07-20 05:58:02,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1218 states. [2020-07-20 05:58:02,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1218 states to 1218 states and 1556 transitions. [2020-07-20 05:58:02,795 INFO L78 Accepts]: Start accepts. Automaton has 1218 states and 1556 transitions. Word has length 251 [2020-07-20 05:58:02,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 05:58:02,801 INFO L479 AbstractCegarLoop]: Abstraction has 1218 states and 1556 transitions. [2020-07-20 05:58:02,801 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-20 05:58:02,801 INFO L276 IsEmpty]: Start isEmpty. Operand 1218 states and 1556 transitions. [2020-07-20 05:58:02,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2020-07-20 05:58:02,808 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 05:58:02,808 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, 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, 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] [2020-07-20 05:58:03,023 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 05:58:03,023 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 05:58:03,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 05:58:03,024 INFO L82 PathProgramCache]: Analyzing trace with hash 485230490, now seen corresponding path program 1 times [2020-07-20 05:58:03,025 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 05:58:03,025 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841407310] [2020-07-20 05:58:03,026 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4aa55784 [2020-07-20 05:58:03,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:58:03,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:58:03,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:58:03,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:58:03,486 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 98 proven. 71 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-20 05:58:03,487 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841407310] [2020-07-20 05:58:03,488 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [406470875] [2020-07-20 05:58:03,488 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5a03d800 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 05:58:03,705 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5a03d800 issued 4 check-sat command(s) [2020-07-20 05:58:03,705 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 05:58:03,708 INFO L263 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 05:58:03,715 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 05:58:03,869 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-07-20 05:58:03,869 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-20 05:58:03,870 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 10 [2020-07-20 05:58:03,870 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495262671] [2020-07-20 05:58:03,871 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 05:58:03,871 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 05:58:03,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 05:58:03,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-07-20 05:58:03,873 INFO L87 Difference]: Start difference. First operand 1218 states and 1556 transitions. Second operand 5 states. [2020-07-20 05:58:05,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 05:58:05,055 INFO L93 Difference]: Finished difference Result 1995 states and 2572 transitions. [2020-07-20 05:58:05,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 05:58:05,055 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 257 [2020-07-20 05:58:05,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 05:58:05,061 INFO L225 Difference]: With dead ends: 1995 [2020-07-20 05:58:05,061 INFO L226 Difference]: Without dead ends: 1069 [2020-07-20 05:58:05,066 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-07-20 05:58:05,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1069 states. [2020-07-20 05:58:05,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1069 to 904. [2020-07-20 05:58:05,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 904 states. [2020-07-20 05:58:05,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 904 states to 904 states and 1083 transitions. [2020-07-20 05:58:05,097 INFO L78 Accepts]: Start accepts. Automaton has 904 states and 1083 transitions. Word has length 257 [2020-07-20 05:58:05,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 05:58:05,097 INFO L479 AbstractCegarLoop]: Abstraction has 904 states and 1083 transitions. [2020-07-20 05:58:05,097 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 05:58:05,098 INFO L276 IsEmpty]: Start isEmpty. Operand 904 states and 1083 transitions. [2020-07-20 05:58:05,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2020-07-20 05:58:05,102 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 05:58:05,103 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, 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, 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] [2020-07-20 05:58:05,315 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 05:58:05,316 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 05:58:05,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 05:58:05,316 INFO L82 PathProgramCache]: Analyzing trace with hash 740293395, now seen corresponding path program 1 times [2020-07-20 05:58:05,316 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 05:58:05,317 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085606964] [2020-07-20 05:58:05,317 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4aa55784 [2020-07-20 05:58:05,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:58:05,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:58:05,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:58:05,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:58:05,749 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 102 proven. 74 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-20 05:58:05,749 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085606964] [2020-07-20 05:58:05,750 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1983901542] [2020-07-20 05:58:05,750 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@40ece1bd No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 05:58:05,923 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@40ece1bd issued 4 check-sat command(s) [2020-07-20 05:58:05,924 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 05:58:05,926 INFO L263 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 05:58:05,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 05:58:06,108 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 175 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 05:58:06,108 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 05:58:06,109 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5] total 13 [2020-07-20 05:58:06,109 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478674853] [2020-07-20 05:58:06,110 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-07-20 05:58:06,110 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 05:58:06,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-07-20 05:58:06,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-07-20 05:58:06,111 INFO L87 Difference]: Start difference. First operand 904 states and 1083 transitions. Second operand 13 states. [2020-07-20 05:58:12,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 05:58:12,763 INFO L93 Difference]: Finished difference Result 3902 states and 5497 transitions. [2020-07-20 05:58:12,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-07-20 05:58:12,764 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 260 [2020-07-20 05:58:12,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 05:58:12,777 INFO L225 Difference]: With dead ends: 3902 [2020-07-20 05:58:12,778 INFO L226 Difference]: Without dead ends: 2035 [2020-07-20 05:58:12,788 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 315 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 320 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=286, Invalid=1120, Unknown=0, NotChecked=0, Total=1406 [2020-07-20 05:58:12,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2035 states. [2020-07-20 05:58:12,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2035 to 1228. [2020-07-20 05:58:12,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1228 states. [2020-07-20 05:58:12,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1228 states to 1228 states and 1467 transitions. [2020-07-20 05:58:12,850 INFO L78 Accepts]: Start accepts. Automaton has 1228 states and 1467 transitions. Word has length 260 [2020-07-20 05:58:12,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 05:58:12,851 INFO L479 AbstractCegarLoop]: Abstraction has 1228 states and 1467 transitions. [2020-07-20 05:58:12,851 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-07-20 05:58:12,851 INFO L276 IsEmpty]: Start isEmpty. Operand 1228 states and 1467 transitions. [2020-07-20 05:58:12,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2020-07-20 05:58:12,860 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 05:58:12,862 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, 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, 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] [2020-07-20 05:58:13,075 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2020-07-20 05:58:13,076 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 05:58:13,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 05:58:13,077 INFO L82 PathProgramCache]: Analyzing trace with hash -652536353, now seen corresponding path program 1 times [2020-07-20 05:58:13,077 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 05:58:13,077 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508943222] [2020-07-20 05:58:13,077 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4aa55784 [2020-07-20 05:58:13,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:58:13,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:58:13,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:58:13,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:58:13,407 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 98 proven. 90 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-20 05:58:13,408 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508943222] [2020-07-20 05:58:13,408 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1091262157] [2020-07-20 05:58:13,408 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7d671ecc No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 05:58:13,575 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7d671ecc issued 4 check-sat command(s) [2020-07-20 05:58:13,581 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 05:58:13,585 INFO L263 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 05:58:13,589 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 05:58:13,716 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 143 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-07-20 05:58:13,717 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-20 05:58:13,717 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 10 [2020-07-20 05:58:13,717 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42223937] [2020-07-20 05:58:13,720 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 05:58:13,720 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 05:58:13,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 05:58:13,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-07-20 05:58:13,721 INFO L87 Difference]: Start difference. First operand 1228 states and 1467 transitions. Second operand 5 states. [2020-07-20 05:58:14,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 05:58:14,643 INFO L93 Difference]: Finished difference Result 2281 states and 2719 transitions. [2020-07-20 05:58:14,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 05:58:14,646 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 270 [2020-07-20 05:58:14,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 05:58:14,652 INFO L225 Difference]: With dead ends: 2281 [2020-07-20 05:58:14,652 INFO L226 Difference]: Without dead ends: 1218 [2020-07-20 05:58:14,656 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2020-07-20 05:58:14,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1218 states. [2020-07-20 05:58:14,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1218 to 1196. [2020-07-20 05:58:14,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1196 states. [2020-07-20 05:58:14,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1196 states to 1196 states and 1361 transitions. [2020-07-20 05:58:14,690 INFO L78 Accepts]: Start accepts. Automaton has 1196 states and 1361 transitions. Word has length 270 [2020-07-20 05:58:14,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 05:58:14,690 INFO L479 AbstractCegarLoop]: Abstraction has 1196 states and 1361 transitions. [2020-07-20 05:58:14,691 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 05:58:14,691 INFO L276 IsEmpty]: Start isEmpty. Operand 1196 states and 1361 transitions. [2020-07-20 05:58:14,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2020-07-20 05:58:14,697 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 05:58:14,698 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, 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, 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] [2020-07-20 05:58:14,911 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 05:58:14,912 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 05:58:14,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 05:58:14,912 INFO L82 PathProgramCache]: Analyzing trace with hash -685542405, now seen corresponding path program 1 times [2020-07-20 05:58:14,913 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 05:58:14,913 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327272326] [2020-07-20 05:58:14,913 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4aa55784 [2020-07-20 05:58:14,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:58:15,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:58:15,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:58:15,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:58:15,211 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 99 proven. 2 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-07-20 05:58:15,211 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327272326] [2020-07-20 05:58:15,212 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1935940915] [2020-07-20 05:58:15,212 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@13c1adfc No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 05:58:15,392 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@13c1adfc issued 4 check-sat command(s) [2020-07-20 05:58:15,392 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 05:58:15,394 INFO L263 TraceCheckSpWp]: Trace formula consists of 487 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 05:58:15,399 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 05:58:15,533 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-07-20 05:58:15,534 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-20 05:58:15,534 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2020-07-20 05:58:15,535 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131896499] [2020-07-20 05:58:15,535 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 05:58:15,536 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 05:58:15,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 05:58:15,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-20 05:58:15,536 INFO L87 Difference]: Start difference. First operand 1196 states and 1361 transitions. Second operand 3 states. [2020-07-20 05:58:16,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 05:58:16,206 INFO L93 Difference]: Finished difference Result 2531 states and 2894 transitions. [2020-07-20 05:58:16,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 05:58:16,208 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 312 [2020-07-20 05:58:16,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 05:58:16,216 INFO L225 Difference]: With dead ends: 2531 [2020-07-20 05:58:16,217 INFO L226 Difference]: Without dead ends: 1337 [2020-07-20 05:58:16,220 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 318 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-20 05:58:16,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1337 states. [2020-07-20 05:58:16,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1337 to 1337. [2020-07-20 05:58:16,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1337 states. [2020-07-20 05:58:16,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1337 states to 1337 states and 1518 transitions. [2020-07-20 05:58:16,255 INFO L78 Accepts]: Start accepts. Automaton has 1337 states and 1518 transitions. Word has length 312 [2020-07-20 05:58:16,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 05:58:16,256 INFO L479 AbstractCegarLoop]: Abstraction has 1337 states and 1518 transitions. [2020-07-20 05:58:16,256 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 05:58:16,256 INFO L276 IsEmpty]: Start isEmpty. Operand 1337 states and 1518 transitions. [2020-07-20 05:58:16,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2020-07-20 05:58:16,265 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 05:58:16,265 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, 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, 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] [2020-07-20 05:58:16,479 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 05:58:16,480 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 05:58:16,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 05:58:16,480 INFO L82 PathProgramCache]: Analyzing trace with hash -819512655, now seen corresponding path program 1 times [2020-07-20 05:58:16,481 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 05:58:16,481 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070710716] [2020-07-20 05:58:16,481 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4aa55784 [2020-07-20 05:58:16,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:58:16,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:58:16,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:58:16,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:58:16,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:58:16,857 INFO L134 CoverageAnalysis]: Checked inductivity of 416 backedges. 150 proven. 3 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2020-07-20 05:58:16,858 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070710716] [2020-07-20 05:58:16,858 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1131388642] [2020-07-20 05:58:16,859 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3708f9f3 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 05:58:17,087 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3708f9f3 issued 4 check-sat command(s) [2020-07-20 05:58:17,087 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 05:58:17,089 INFO L263 TraceCheckSpWp]: Trace formula consists of 575 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 05:58:17,095 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 05:58:17,191 INFO L134 CoverageAnalysis]: Checked inductivity of 416 backedges. 153 proven. 0 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2020-07-20 05:58:17,192 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-20 05:58:17,192 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2020-07-20 05:58:17,192 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489748338] [2020-07-20 05:58:17,193 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 05:58:17,193 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 05:58:17,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 05:58:17,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-20 05:58:17,196 INFO L87 Difference]: Start difference. First operand 1337 states and 1518 transitions. Second operand 3 states. [2020-07-20 05:58:17,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 05:58:17,783 INFO L93 Difference]: Finished difference Result 1337 states and 1518 transitions. [2020-07-20 05:58:17,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 05:58:17,784 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 367 [2020-07-20 05:58:17,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 05:58:17,785 INFO L225 Difference]: With dead ends: 1337 [2020-07-20 05:58:17,785 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 05:58:17,789 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 379 GetRequests, 375 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-20 05:58:17,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 05:58:17,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 05:58:17,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 05:58:17,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 05:58:17,790 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 367 [2020-07-20 05:58:17,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 05:58:17,791 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 05:58:17,791 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 05:58:17,791 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 05:58:17,791 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 05:58:17,999 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-07-20 05:58:18,002 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 05:58:18,552 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 41 [2020-07-20 05:58:19,215 WARN L193 SmtUtils]: Spent 527.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 34 [2020-07-20 05:58:19,417 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 41 [2020-07-20 05:58:19,558 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 41 [2020-07-20 05:58:19,567 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 05:58:19,567 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a12~0 |old(~a12~0)|) (= ~a10~0 |old(~a10~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputB~0 |old(~inputB~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputC~0 |old(~inputC~0)|) (= ~a19~0 |old(~a19~0)|) (= ~inputD~0 |old(~inputD~0)|) (= ~a4~0 |old(~a4~0)|) (= ~a1~0 |old(~a1~0)|)) [2020-07-20 05:58:19,567 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 05:58:19,568 INFO L268 CegarLoopResult]: For program point L465(lines 465 572) no Hoare annotation was computed. [2020-07-20 05:58:19,568 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 05:58:19,568 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 05:58:19,568 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 05:58:19,568 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 05:58:19,568 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 05:58:19,568 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 05:58:19,568 INFO L268 CegarLoopResult]: For program point L499(lines 499 572) no Hoare annotation was computed. [2020-07-20 05:58:19,569 INFO L268 CegarLoopResult]: For program point L301(lines 301 572) no Hoare annotation was computed. [2020-07-20 05:58:19,569 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-07-20 05:58:19,569 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-07-20 05:58:19,569 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-07-20 05:58:19,569 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-07-20 05:58:19,569 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-07-20 05:58:19,569 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-07-20 05:58:19,569 INFO L268 CegarLoopResult]: For program point L335(lines 335 572) no Hoare annotation was computed. [2020-07-20 05:58:19,570 INFO L268 CegarLoopResult]: For program point L236(lines 236 572) no Hoare annotation was computed. [2020-07-20 05:58:19,570 INFO L268 CegarLoopResult]: For program point L534(lines 534 572) no Hoare annotation was computed. [2020-07-20 05:58:19,570 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 05:58:19,570 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 05:58:19,570 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 05:58:19,570 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 05:58:19,570 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 05:58:19,570 INFO L268 CegarLoopResult]: For program point L436(lines 436 572) no Hoare annotation was computed. [2020-07-20 05:58:19,571 INFO L268 CegarLoopResult]: For program point L403(lines 403 572) no Hoare annotation was computed. [2020-07-20 05:58:19,571 INFO L268 CegarLoopResult]: For program point L370(lines 370 572) no Hoare annotation was computed. [2020-07-20 05:58:19,571 INFO L268 CegarLoopResult]: For program point L271(lines 271 572) no Hoare annotation was computed. [2020-07-20 05:58:19,571 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-07-20 05:58:19,571 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-07-20 05:58:19,571 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-07-20 05:58:19,571 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-07-20 05:58:19,572 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-07-20 05:58:19,572 INFO L268 CegarLoopResult]: For program point L569(lines 569 572) no Hoare annotation was computed. [2020-07-20 05:58:19,572 INFO L268 CegarLoopResult]: For program point L239(lines 239 572) no Hoare annotation was computed. [2020-07-20 05:58:19,572 INFO L268 CegarLoopResult]: For program point L504(lines 504 572) no Hoare annotation was computed. [2020-07-20 05:58:19,572 INFO L268 CegarLoopResult]: For program point L471(lines 471 572) no Hoare annotation was computed. [2020-07-20 05:58:19,572 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 154) no Hoare annotation was computed. [2020-07-20 05:58:19,572 INFO L268 CegarLoopResult]: For program point L306(lines 306 572) no Hoare annotation was computed. [2020-07-20 05:58:19,572 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 05:58:19,573 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 05:58:19,573 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 05:58:19,573 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 05:58:19,573 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 05:58:19,573 INFO L268 CegarLoopResult]: For program point L340(lines 340 572) no Hoare annotation was computed. [2020-07-20 05:58:19,573 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-07-20 05:58:19,573 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-07-20 05:58:19,573 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-07-20 05:58:19,574 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-07-20 05:58:19,574 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-07-20 05:58:19,574 INFO L268 CegarLoopResult]: For program point L540(lines 540 572) no Hoare annotation was computed. [2020-07-20 05:58:19,574 INFO L268 CegarLoopResult]: For program point L408(lines 408 572) no Hoare annotation was computed. [2020-07-20 05:58:19,574 INFO L268 CegarLoopResult]: For program point L375(lines 375 572) no Hoare annotation was computed. [2020-07-20 05:58:19,574 INFO L268 CegarLoopResult]: For program point L210(lines 210 572) no Hoare annotation was computed. [2020-07-20 05:58:19,574 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 05:58:19,574 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 05:58:19,575 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 05:58:19,575 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 05:58:19,575 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 05:58:19,575 INFO L268 CegarLoopResult]: For program point L442(lines 442 572) no Hoare annotation was computed. [2020-07-20 05:58:19,575 INFO L268 CegarLoopResult]: For program point L277(lines 277 572) no Hoare annotation was computed. [2020-07-20 05:58:19,575 INFO L268 CegarLoopResult]: For program point L244(lines 244 572) no Hoare annotation was computed. [2020-07-20 05:58:19,575 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-07-20 05:58:19,575 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-07-20 05:58:19,575 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-07-20 05:58:19,576 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-07-20 05:58:19,576 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-07-20 05:58:19,576 INFO L268 CegarLoopResult]: For program point L509(lines 509 572) no Hoare annotation was computed. [2020-07-20 05:58:19,576 INFO L268 CegarLoopResult]: For program point L476(lines 476 572) no Hoare annotation was computed. [2020-07-20 05:58:19,576 INFO L268 CegarLoopResult]: For program point L378(lines 378 572) no Hoare annotation was computed. [2020-07-20 05:58:19,576 INFO L268 CegarLoopResult]: For program point L345(lines 345 572) no Hoare annotation was computed. [2020-07-20 05:58:19,576 INFO L268 CegarLoopResult]: For program point L312(lines 312 572) no Hoare annotation was computed. [2020-07-20 05:58:19,576 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 05:58:19,577 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 05:58:19,577 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 05:58:19,577 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 05:58:19,577 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 05:58:19,577 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-07-20 05:58:19,577 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-07-20 05:58:19,577 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-07-20 05:58:19,577 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-07-20 05:58:19,577 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-07-20 05:58:19,578 INFO L268 CegarLoopResult]: For program point L545(lines 545 572) no Hoare annotation was computed. [2020-07-20 05:58:19,578 INFO L268 CegarLoopResult]: For program point L215(lines 215 572) no Hoare annotation was computed. [2020-07-20 05:58:19,578 INFO L268 CegarLoopResult]: For program point L414(lines 414 572) no Hoare annotation was computed. [2020-07-20 05:58:19,578 INFO L268 CegarLoopResult]: For program point L249(lines 249 572) no Hoare annotation was computed. [2020-07-20 05:58:19,578 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 05:58:19,578 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 05:58:19,578 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 05:58:19,578 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 05:58:19,578 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 05:58:19,579 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2020-07-20 05:58:19,579 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2020-07-20 05:58:19,579 INFO L268 CegarLoopResult]: For program point L514(lines 514 572) no Hoare annotation was computed. [2020-07-20 05:58:19,579 INFO L268 CegarLoopResult]: For program point L481(lines 481 572) no Hoare annotation was computed. [2020-07-20 05:58:19,579 INFO L268 CegarLoopResult]: For program point L448(lines 448 572) no Hoare annotation was computed. [2020-07-20 05:58:19,579 INFO L268 CegarLoopResult]: For program point L283(lines 283 572) no Hoare annotation was computed. [2020-07-20 05:58:19,579 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-07-20 05:58:19,579 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-07-20 05:58:19,579 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-07-20 05:58:19,580 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-07-20 05:58:19,580 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-07-20 05:58:19,580 INFO L268 CegarLoopResult]: For program point L548(lines 548 572) no Hoare annotation was computed. [2020-07-20 05:58:19,580 INFO L268 CegarLoopResult]: For program point L383(lines 383 572) no Hoare annotation was computed. [2020-07-20 05:58:19,580 INFO L268 CegarLoopResult]: For program point L317(lines 317 572) no Hoare annotation was computed. [2020-07-20 05:58:19,580 INFO L268 CegarLoopResult]: For program point L351(lines 351 572) no Hoare annotation was computed. [2020-07-20 05:58:19,580 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 05:58:19,580 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 05:58:19,580 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 05:58:19,581 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 05:58:19,581 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-07-20 05:58:19,581 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 05:58:19,581 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2020-07-20 05:58:19,581 INFO L268 CegarLoopResult]: For program point L517(lines 517 572) no Hoare annotation was computed. [2020-07-20 05:58:19,581 INFO L268 CegarLoopResult]: For program point L286(lines 286 572) no Hoare annotation was computed. [2020-07-20 05:58:19,581 INFO L268 CegarLoopResult]: For program point L220(lines 220 572) no Hoare annotation was computed. [2020-07-20 05:58:19,582 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-07-20 05:58:19,582 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-07-20 05:58:19,582 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-07-20 05:58:19,582 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-07-20 05:58:19,582 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-07-20 05:58:19,582 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-07-20 05:58:19,582 INFO L268 CegarLoopResult]: For program point L419(lines 419 572) no Hoare annotation was computed. [2020-07-20 05:58:19,582 INFO L268 CegarLoopResult]: For program point L320(lines 320 572) no Hoare annotation was computed. [2020-07-20 05:58:19,582 INFO L268 CegarLoopResult]: For program point L254(lines 254 572) no Hoare annotation was computed. [2020-07-20 05:58:19,583 INFO L268 CegarLoopResult]: For program point L354(lines 354 572) no Hoare annotation was computed. [2020-07-20 05:58:19,583 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 05:58:19,583 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 05:58:19,583 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 05:58:19,583 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 05:58:19,583 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 05:58:19,583 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 05:58:19,583 INFO L268 CegarLoopResult]: For program point L487(lines 487 572) no Hoare annotation was computed. [2020-07-20 05:58:19,583 INFO L268 CegarLoopResult]: For program point L454(lines 454 572) no Hoare annotation was computed. [2020-07-20 05:58:19,584 INFO L268 CegarLoopResult]: For program point L388(lines 388 572) no Hoare annotation was computed. [2020-07-20 05:58:19,584 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-07-20 05:58:19,584 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-07-20 05:58:19,584 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-07-20 05:58:19,584 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-07-20 05:58:19,584 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-07-20 05:58:19,584 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-07-20 05:58:19,584 INFO L268 CegarLoopResult]: For program point L554(lines 554 572) no Hoare annotation was computed. [2020-07-20 05:58:19,584 INFO L268 CegarLoopResult]: For program point L323(lines 323 572) no Hoare annotation was computed. [2020-07-20 05:58:19,585 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse1 (not (<= |old(~a19~0)| 9))) (.cse0 (and (= ~a10~0 |old(~a10~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a1~0 |old(~a1~0)|)))) (and (or (not (<= |old(~a19~0)| 6)) .cse0) (or .cse0 (not (<= |old(~a10~0)| 2))) (or (not (<= 4 |old(~a10~0)|)) .cse1 .cse0) (or .cse1 (and (not (<= 23 |old(~a1~0)|)) (not (<= 9 |old(~a19~0)|))) .cse0))) [2020-07-20 05:58:19,585 INFO L268 CegarLoopResult]: For program point L357(lines 357 572) no Hoare annotation was computed. [2020-07-20 05:58:19,585 INFO L268 CegarLoopResult]: For program point L291(lines 291 572) no Hoare annotation was computed. [2020-07-20 05:58:19,585 INFO L268 CegarLoopResult]: For program point L225(lines 225 572) no Hoare annotation was computed. [2020-07-20 05:58:19,585 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 05:58:19,585 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 05:58:19,585 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 05:58:19,585 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 05:58:19,586 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 05:58:19,586 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 05:58:19,586 INFO L268 CegarLoopResult]: For program point L523(lines 523 572) no Hoare annotation was computed. [2020-07-20 05:58:19,586 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-07-20 05:58:19,586 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-07-20 05:58:19,586 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-07-20 05:58:19,586 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-07-20 05:58:19,586 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-07-20 05:58:19,586 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-07-20 05:58:19,587 INFO L268 CegarLoopResult]: For program point L557(lines 557 572) no Hoare annotation was computed. [2020-07-20 05:58:19,587 INFO L268 CegarLoopResult]: For program point L425(lines 425 572) no Hoare annotation was computed. [2020-07-20 05:58:19,587 INFO L268 CegarLoopResult]: For program point L326(lines 326 572) no Hoare annotation was computed. [2020-07-20 05:58:19,587 INFO L268 CegarLoopResult]: For program point L260(lines 260 572) no Hoare annotation was computed. [2020-07-20 05:58:19,587 INFO L268 CegarLoopResult]: For program point L393(lines 393 572) no Hoare annotation was computed. [2020-07-20 05:58:19,587 INFO L268 CegarLoopResult]: For program point L360(lines 360 572) no Hoare annotation was computed. [2020-07-20 05:58:19,587 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 05:58:19,587 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 05:58:19,587 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 05:58:19,588 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 05:58:19,588 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 05:58:19,588 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 05:58:19,588 INFO L268 CegarLoopResult]: For program point L526(lines 526 572) no Hoare annotation was computed. [2020-07-20 05:58:19,588 INFO L268 CegarLoopResult]: For program point L493(lines 493 572) no Hoare annotation was computed. [2020-07-20 05:58:19,588 INFO L268 CegarLoopResult]: For program point L460(lines 460 572) no Hoare annotation was computed. [2020-07-20 05:58:19,588 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-07-20 05:58:19,588 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-07-20 05:58:19,588 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-07-20 05:58:19,589 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-07-20 05:58:19,589 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-07-20 05:58:19,589 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-07-20 05:58:19,589 INFO L268 CegarLoopResult]: For program point L329(lines 329 572) no Hoare annotation was computed. [2020-07-20 05:58:19,589 INFO L268 CegarLoopResult]: For program point L296(lines 296 572) no Hoare annotation was computed. [2020-07-20 05:58:19,589 INFO L268 CegarLoopResult]: For program point L231(lines 231 572) no Hoare annotation was computed. [2020-07-20 05:58:19,589 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 05:58:19,589 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 05:58:19,589 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 05:58:19,590 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 05:58:19,590 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 05:58:19,590 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 05:58:19,590 INFO L268 CegarLoopResult]: For program point L529(lines 529 572) no Hoare annotation was computed. [2020-07-20 05:58:19,590 INFO L268 CegarLoopResult]: For program point L430(lines 430 572) no Hoare annotation was computed. [2020-07-20 05:58:19,590 INFO L268 CegarLoopResult]: For program point L265(lines 265 572) no Hoare annotation was computed. [2020-07-20 05:58:19,590 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-07-20 05:58:19,590 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-07-20 05:58:19,590 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-07-20 05:58:19,591 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-07-20 05:58:19,591 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-07-20 05:58:19,591 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-07-20 05:58:19,591 INFO L268 CegarLoopResult]: For program point L563(lines 563 572) no Hoare annotation was computed. [2020-07-20 05:58:19,591 INFO L268 CegarLoopResult]: For program point L398(lines 398 572) no Hoare annotation was computed. [2020-07-20 05:58:19,591 INFO L268 CegarLoopResult]: For program point L365(lines 365 572) no Hoare annotation was computed. [2020-07-20 05:58:19,591 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 05:58:19,591 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a10~0 0) (= 14 ~a4~0) (<= ~a19~0 9) (<= 9 ~a19~0) (= 0 ~a12~0) (<= ~a1~0 23) (<= 23 ~a1~0)) [2020-07-20 05:58:19,591 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 05:58:19,592 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 05:58:19,592 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (not (<= 23 |old(~a1~0)|)) (not (<= |old(~a1~0)| 23)) (not (<= |old(~a10~0)| 0)) (not (= 0 ~a12~0)) (not (<= 9 |old(~a19~0)|)) (not (= 14 ~a4~0)) (not (<= |old(~a19~0)| 9)) (and (= ~a10~0 |old(~a10~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a1~0 |old(~a1~0)|))) [2020-07-20 05:58:19,592 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2020-07-20 05:58:19,592 INFO L264 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: (or (not (<= 23 |old(~a1~0)|)) (and (<= ~a19~0 9) (or (<= 9 ~a19~0) (<= 23 ~a1~0))) (not (<= |old(~a1~0)| 23)) (<= ~a19~0 6) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (not (= 0 ~a12~0)) (<= ~a10~0 2) (not (= 14 ~a4~0)) (not (<= |old(~a19~0)| 9)) (and (<= ~a19~0 8) (<= 4 ~a10~0))) [2020-07-20 05:58:19,592 INFO L268 CegarLoopResult]: For program point L590-1(line 590) no Hoare annotation was computed. [2020-07-20 05:58:19,592 INFO L268 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2020-07-20 05:58:19,593 INFO L264 CegarLoopResult]: At program point L582-2(lines 582 591) the Hoare annotation is: (or (not (<= 23 |old(~a1~0)|)) (and (<= ~a19~0 9) (or (<= 9 ~a19~0) (<= 23 ~a1~0))) (not (<= |old(~a1~0)| 23)) (<= ~a19~0 6) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (not (= 0 ~a12~0)) (<= ~a10~0 2) (not (= 14 ~a4~0)) (not (<= |old(~a19~0)| 9)) (and (<= ~a19~0 8) (<= 4 ~a10~0))) [2020-07-20 05:58:19,593 INFO L268 CegarLoopResult]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2020-07-20 05:58:19,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 05:58:19 BoogieIcfgContainer [2020-07-20 05:58:19,615 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 05:58:19,617 INFO L168 Benchmark]: Toolchain (without parser) took 31880.93 ms. Allocated memory was 144.7 MB in the beginning and 644.9 MB in the end (delta: 500.2 MB). Free memory was 101.7 MB in the beginning and 548.5 MB in the end (delta: -446.8 MB). Peak memory consumption was 518.1 MB. Max. memory is 7.1 GB. [2020-07-20 05:58:19,618 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 144.7 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-20 05:58:19,619 INFO L168 Benchmark]: CACSL2BoogieTranslator took 814.69 ms. Allocated memory was 144.7 MB in the beginning and 205.0 MB in the end (delta: 60.3 MB). Free memory was 101.2 MB in the beginning and 171.8 MB in the end (delta: -70.6 MB). Peak memory consumption was 33.4 MB. Max. memory is 7.1 GB. [2020-07-20 05:58:19,619 INFO L168 Benchmark]: Boogie Preprocessor took 118.43 ms. Allocated memory is still 205.0 MB. Free memory was 171.8 MB in the beginning and 167.5 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. [2020-07-20 05:58:19,620 INFO L168 Benchmark]: RCFGBuilder took 1456.56 ms. Allocated memory was 205.0 MB in the beginning and 237.0 MB in the end (delta: 32.0 MB). Free memory was 167.5 MB in the beginning and 184.0 MB in the end (delta: -16.5 MB). Peak memory consumption was 85.1 MB. Max. memory is 7.1 GB. [2020-07-20 05:58:19,621 INFO L168 Benchmark]: TraceAbstraction took 29484.47 ms. Allocated memory was 237.0 MB in the beginning and 644.9 MB in the end (delta: 407.9 MB). Free memory was 182.5 MB in the beginning and 548.5 MB in the end (delta: -366.0 MB). Peak memory consumption was 506.7 MB. Max. memory is 7.1 GB. [2020-07-20 05:58:19,625 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 144.7 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 814.69 ms. Allocated memory was 144.7 MB in the beginning and 205.0 MB in the end (delta: 60.3 MB). Free memory was 101.2 MB in the beginning and 171.8 MB in the end (delta: -70.6 MB). Peak memory consumption was 33.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 118.43 ms. Allocated memory is still 205.0 MB. Free memory was 171.8 MB in the beginning and 167.5 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1456.56 ms. Allocated memory was 205.0 MB in the beginning and 237.0 MB in the end (delta: 32.0 MB). Free memory was 167.5 MB in the beginning and 184.0 MB in the end (delta: -16.5 MB). Peak memory consumption was 85.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 29484.47 ms. Allocated memory was 237.0 MB in the beginning and 644.9 MB in the end (delta: 407.9 MB). Free memory was 182.5 MB in the beginning and 548.5 MB in the end (delta: -366.0 MB). Peak memory consumption was 506.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 154]: 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: 582]: Loop Invariant Derived loop invariant: (((((((((!(23 <= \old(a1)) || (a19 <= 9 && (9 <= a19 || 23 <= a1))) || !(\old(a1) <= 23)) || a19 <= 6) || !(\old(a10) <= 0)) || !(9 <= \old(a19))) || !(0 == a12)) || a10 <= 2) || !(14 == a4)) || !(\old(a19) <= 9)) || (a19 <= 8 && 4 <= a10) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 27.7s, OverallIterations: 10, TraceHistogramMax: 4, AutomataDifference: 19.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 710 SDtfs, 4107 SDslu, 478 SDs, 0 SdLazy, 11114 SolverSat, 1810 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 13.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2220 GetRequests, 2113 SyntacticMatches, 0 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 448 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1337occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 10 MinimizatonAttempts, 2572 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 87 PreInvPairs, 155 NumberOfFragments, 273 HoareAnnotationTreeSize, 87 FomulaSimplifications, 44425 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 7 FomulaSimplificationsInter, 2503 FormulaSimplificationTreeSizeReductionInter, 0.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 3.4s InterpolantComputationTime, 4281 NumberOfCodeBlocks, 4281 NumberOfCodeBlocksAsserted, 42 NumberOfCheckSat, 4263 ConstructedInterpolants, 0 QuantifiedInterpolants, 2030914 SizeOfPredicates, 11 NumberOfNonLiveVariables, 3442 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 18 InterpolantComputations, 8 PerfectInterpolantSequences, 2910/3165 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...