/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label02.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-06 18:55:02,365 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-06 18:55:02,368 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-06 18:55:02,386 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-11-06 18:55:02,411 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-06 18:55:02,415 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-06 18:55:02,416 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-06 18:55:02,417 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-06 18:55:02,419 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-06 18:55:02,422 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-06 18:55:02,424 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-06 18:55:02,429 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-06 18:55:02,433 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-06 18:55:02,436 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-06 18:55:02,439 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-06 18:55:02,440 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-06 18:55:02,441 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-06 18:55:02,455 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-06 18:55:02,456 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-06 18:55:02,457 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-06 18:55:02,458 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 [2019-11-06 18:55:02,479 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-06 18:55:02,479 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-06 18:55:02,481 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-06 18:55:02,481 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-06 18:55:02,481 INFO L138 SettingsManager]: * Use SBE=true [2019-11-06 18:55:02,482 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-06 18:55:02,482 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-06 18:55:02,482 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-06 18:55:02,483 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-06 18:55:02,483 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-06 18:55:02,484 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-06 18:55:02,484 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-06 18:55:02,484 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-06 18:55:02,485 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-06 18:55:02,485 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-06 18:55:02,485 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-06 18:55:02,485 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-06 18:55:02,486 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-06 18:55:02,486 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-06 18:55:02,486 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-06 18:55:02,486 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-06 18:55:02,486 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-06 18:55:02,487 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-06 18:55:02,487 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-06 18:55:02,487 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-06 18:55:02,487 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-06 18:55:02,487 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-06 18:55:02,487 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-06 18:55:02,488 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-06 18:55:02,743 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-06 18:55:02,759 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-06 18:55:02,762 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-06 18:55:02,764 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-06 18:55:02,764 INFO L275 PluginConnector]: CDTParser initialized [2019-11-06 18:55:02,765 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label02.c [2019-11-06 18:55:02,838 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/758714c87/5288209cfeb04894850c703d4d83eb02/FLAG5fa4749f3 [2019-11-06 18:55:03,375 INFO L306 CDTParser]: Found 1 translation units. [2019-11-06 18:55:03,376 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label02.c [2019-11-06 18:55:03,392 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/758714c87/5288209cfeb04894850c703d4d83eb02/FLAG5fa4749f3 [2019-11-06 18:55:03,677 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/758714c87/5288209cfeb04894850c703d4d83eb02 [2019-11-06 18:55:03,687 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-06 18:55:03,689 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-06 18:55:03,690 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-06 18:55:03,690 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-06 18:55:03,694 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-06 18:55:03,695 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 06:55:03" (1/1) ... [2019-11-06 18:55:03,698 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b8ae619 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:55:03, skipping insertion in model container [2019-11-06 18:55:03,698 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 06:55:03" (1/1) ... [2019-11-06 18:55:03,706 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-06 18:55:03,774 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-06 18:55:04,474 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 18:55:04,486 INFO L188 MainTranslator]: Completed pre-run [2019-11-06 18:55:04,562 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 18:55:04,579 INFO L192 MainTranslator]: Completed translation [2019-11-06 18:55:04,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:55:04 WrapperNode [2019-11-06 18:55:04,580 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-06 18:55:04,580 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-06 18:55:04,580 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-06 18:55:04,581 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-06 18:55:04,595 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:55:04" (1/1) ... [2019-11-06 18:55:04,595 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:55:04" (1/1) ... [2019-11-06 18:55:04,614 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:55:04" (1/1) ... [2019-11-06 18:55:04,615 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:55:04" (1/1) ... [2019-11-06 18:55:04,655 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:55:04" (1/1) ... [2019-11-06 18:55:04,670 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:55:04" (1/1) ... [2019-11-06 18:55:04,675 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:55:04" (1/1) ... [2019-11-06 18:55:04,682 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-06 18:55:04,682 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-06 18:55:04,682 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-06 18:55:04,683 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-06 18:55:04,684 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:55:04" (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 [2019-11-06 18:55:04,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-06 18:55:04,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-06 18:55:04,760 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-11-06 18:55:04,760 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-06 18:55:04,760 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-11-06 18:55:04,760 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-06 18:55:04,760 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-06 18:55:04,761 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-06 18:55:04,761 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-06 18:55:04,761 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-06 18:55:04,761 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-06 18:55:05,895 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-06 18:55:05,895 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-06 18:55:05,896 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 06:55:05 BoogieIcfgContainer [2019-11-06 18:55:05,897 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-06 18:55:05,898 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-06 18:55:05,898 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-06 18:55:05,901 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-06 18:55:05,902 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 06:55:03" (1/3) ... [2019-11-06 18:55:05,902 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c662961 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 06:55:05, skipping insertion in model container [2019-11-06 18:55:05,903 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:55:04" (2/3) ... [2019-11-06 18:55:05,903 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c662961 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 06:55:05, skipping insertion in model container [2019-11-06 18:55:05,903 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 06:55:05" (3/3) ... [2019-11-06 18:55:05,905 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label02.c [2019-11-06 18:55:05,915 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-06 18:55:05,924 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-06 18:55:05,936 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-06 18:55:05,965 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-06 18:55:05,965 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-06 18:55:05,965 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-06 18:55:05,966 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-06 18:55:05,966 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-06 18:55:05,966 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-06 18:55:05,966 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-06 18:55:05,966 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-06 18:55:05,991 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2019-11-06 18:55:06,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2019-11-06 18:55:06,001 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 18:55:06,003 INFO L410 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 18:55:06,005 INFO L410 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 18:55:06,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 18:55:06,011 INFO L82 PathProgramCache]: Analyzing trace with hash 1011489582, now seen corresponding path program 1 times [2019-11-06 18:55:06,021 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 18:55:06,021 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979143848] [2019-11-06 18:55:06,021 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 18:55:06,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 18:55:06,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 18:55:06,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 18:55:06,564 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979143848] [2019-11-06 18:55:06,565 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 18:55:06,566 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-06 18:55:06,567 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173823358] [2019-11-06 18:55:06,573 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-06 18:55:06,573 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 18:55:06,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-06 18:55:06,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-06 18:55:06,595 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 5 states. [2019-11-06 18:55:07,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 18:55:07,999 INFO L93 Difference]: Finished difference Result 557 states and 956 transitions. [2019-11-06 18:55:08,001 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-06 18:55:08,002 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 96 [2019-11-06 18:55:08,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 18:55:08,026 INFO L225 Difference]: With dead ends: 557 [2019-11-06 18:55:08,026 INFO L226 Difference]: Without dead ends: 286 [2019-11-06 18:55:08,033 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-06 18:55:08,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2019-11-06 18:55:08,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 280. [2019-11-06 18:55:08,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2019-11-06 18:55:08,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 402 transitions. [2019-11-06 18:55:08,107 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 402 transitions. Word has length 96 [2019-11-06 18:55:08,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 18:55:08,108 INFO L462 AbstractCegarLoop]: Abstraction has 280 states and 402 transitions. [2019-11-06 18:55:08,108 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-06 18:55:08,109 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 402 transitions. [2019-11-06 18:55:08,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2019-11-06 18:55:08,114 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 18:55:08,114 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 18:55:08,116 INFO L410 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 18:55:08,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 18:55:08,117 INFO L82 PathProgramCache]: Analyzing trace with hash -1321725755, now seen corresponding path program 1 times [2019-11-06 18:55:08,117 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 18:55:08,117 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059856681] [2019-11-06 18:55:08,117 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 18:55:08,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 18:55:08,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 18:55:08,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 18:55:08,352 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 18:55:08,352 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059856681] [2019-11-06 18:55:08,353 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 18:55:08,353 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-06 18:55:08,353 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711664208] [2019-11-06 18:55:08,355 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-06 18:55:08,356 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 18:55:08,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-06 18:55:08,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2019-11-06 18:55:08,357 INFO L87 Difference]: Start difference. First operand 280 states and 402 transitions. Second operand 9 states. [2019-11-06 18:55:09,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 18:55:09,817 INFO L93 Difference]: Finished difference Result 713 states and 1049 transitions. [2019-11-06 18:55:09,818 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-06 18:55:09,818 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 106 [2019-11-06 18:55:09,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 18:55:09,823 INFO L225 Difference]: With dead ends: 713 [2019-11-06 18:55:09,823 INFO L226 Difference]: Without dead ends: 439 [2019-11-06 18:55:09,825 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2019-11-06 18:55:09,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2019-11-06 18:55:09,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 421. [2019-11-06 18:55:09,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 421 states. [2019-11-06 18:55:09,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 590 transitions. [2019-11-06 18:55:09,861 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 590 transitions. Word has length 106 [2019-11-06 18:55:09,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 18:55:09,862 INFO L462 AbstractCegarLoop]: Abstraction has 421 states and 590 transitions. [2019-11-06 18:55:09,862 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-06 18:55:09,862 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 590 transitions. [2019-11-06 18:55:09,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2019-11-06 18:55:09,869 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 18:55:09,873 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 18:55:09,873 INFO L410 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 18:55:09,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 18:55:09,874 INFO L82 PathProgramCache]: Analyzing trace with hash -1059863033, now seen corresponding path program 1 times [2019-11-06 18:55:09,874 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 18:55:09,874 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643876160] [2019-11-06 18:55:09,874 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 18:55:09,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 18:55:10,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 18:55:10,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 18:55:10,131 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 18:55:10,132 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643876160] [2019-11-06 18:55:10,132 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [965308404] [2019-11-06 18:55:10,132 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2019-11-06 18:55:10,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 18:55:10,235 INFO L256 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-06 18:55:10,244 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-06 18:55:10,282 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 18:55:10,282 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-06 18:55:10,282 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 5 [2019-11-06 18:55:10,284 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902347979] [2019-11-06 18:55:10,286 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-06 18:55:10,290 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 18:55:10,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-06 18:55:10,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-06 18:55:10,291 INFO L87 Difference]: Start difference. First operand 421 states and 590 transitions. Second operand 3 states. [2019-11-06 18:55:10,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 18:55:10,801 INFO L93 Difference]: Finished difference Result 1247 states and 1787 transitions. [2019-11-06 18:55:10,802 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-06 18:55:10,802 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 107 [2019-11-06 18:55:10,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 18:55:10,813 INFO L225 Difference]: With dead ends: 1247 [2019-11-06 18:55:10,813 INFO L226 Difference]: Without dead ends: 832 [2019-11-06 18:55:10,815 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-06 18:55:10,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 832 states. [2019-11-06 18:55:10,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 832 to 832. [2019-11-06 18:55:10,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 832 states. [2019-11-06 18:55:10,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 832 states to 832 states and 1164 transitions. [2019-11-06 18:55:10,875 INFO L78 Accepts]: Start accepts. Automaton has 832 states and 1164 transitions. Word has length 107 [2019-11-06 18:55:10,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 18:55:10,876 INFO L462 AbstractCegarLoop]: Abstraction has 832 states and 1164 transitions. [2019-11-06 18:55:10,876 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-06 18:55:10,877 INFO L276 IsEmpty]: Start isEmpty. Operand 832 states and 1164 transitions. [2019-11-06 18:55:10,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2019-11-06 18:55:10,887 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 18:55:10,887 INFO L410 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 18:55:11,089 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 18:55:11,089 INFO L410 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 18:55:11,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 18:55:11,090 INFO L82 PathProgramCache]: Analyzing trace with hash -742908101, now seen corresponding path program 1 times [2019-11-06 18:55:11,090 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 18:55:11,090 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308527378] [2019-11-06 18:55:11,090 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 18:55:11,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 18:55:11,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 18:55:11,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 18:55:11,336 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 13 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 18:55:11,336 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308527378] [2019-11-06 18:55:11,336 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1961864659] [2019-11-06 18:55:11,336 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2019-11-06 18:55:11,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 18:55:11,424 INFO L256 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-06 18:55:11,429 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-06 18:55:11,471 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 18:55:11,472 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-06 18:55:11,472 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 6 [2019-11-06 18:55:11,472 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838825351] [2019-11-06 18:55:11,473 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-06 18:55:11,473 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 18:55:11,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-06 18:55:11,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-06 18:55:11,474 INFO L87 Difference]: Start difference. First operand 832 states and 1164 transitions. Second operand 3 states. [2019-11-06 18:55:12,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 18:55:12,069 INFO L93 Difference]: Finished difference Result 2480 states and 3563 transitions. [2019-11-06 18:55:12,069 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-06 18:55:12,070 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 113 [2019-11-06 18:55:12,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 18:55:12,080 INFO L225 Difference]: With dead ends: 2480 [2019-11-06 18:55:12,080 INFO L226 Difference]: Without dead ends: 1654 [2019-11-06 18:55:12,083 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 116 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-06 18:55:12,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1654 states. [2019-11-06 18:55:12,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1654 to 1654. [2019-11-06 18:55:12,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1654 states. [2019-11-06 18:55:12,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1654 states to 1654 states and 2258 transitions. [2019-11-06 18:55:12,139 INFO L78 Accepts]: Start accepts. Automaton has 1654 states and 2258 transitions. Word has length 113 [2019-11-06 18:55:12,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 18:55:12,140 INFO L462 AbstractCegarLoop]: Abstraction has 1654 states and 2258 transitions. [2019-11-06 18:55:12,140 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-06 18:55:12,140 INFO L276 IsEmpty]: Start isEmpty. Operand 1654 states and 2258 transitions. [2019-11-06 18:55:12,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2019-11-06 18:55:12,145 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 18:55:12,145 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 18:55:12,349 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 18:55:12,350 INFO L410 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 18:55:12,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 18:55:12,350 INFO L82 PathProgramCache]: Analyzing trace with hash -1298833038, now seen corresponding path program 1 times [2019-11-06 18:55:12,351 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 18:55:12,351 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255629131] [2019-11-06 18:55:12,351 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 18:55:12,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 18:55:12,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 18:55:12,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 18:55:12,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 18:55:12,544 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 38 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-06 18:55:12,544 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255629131] [2019-11-06 18:55:12,544 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1250589761] [2019-11-06 18:55:12,544 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2019-11-06 18:55:12,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 18:55:12,640 INFO L256 TraceCheckSpWp]: Trace formula consists of 423 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-06 18:55:12,657 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-06 18:55:12,753 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-11-06 18:55:12,753 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-06 18:55:12,753 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2019-11-06 18:55:12,754 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524877050] [2019-11-06 18:55:12,754 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-06 18:55:12,755 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 18:55:12,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-06 18:55:12,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2019-11-06 18:55:12,755 INFO L87 Difference]: Start difference. First operand 1654 states and 2258 transitions. Second operand 3 states. [2019-11-06 18:55:13,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 18:55:13,362 INFO L93 Difference]: Finished difference Result 4801 states and 6716 transitions. [2019-11-06 18:55:13,363 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-06 18:55:13,365 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 132 [2019-11-06 18:55:13,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 18:55:13,383 INFO L225 Difference]: With dead ends: 4801 [2019-11-06 18:55:13,384 INFO L226 Difference]: Without dead ends: 3153 [2019-11-06 18:55:13,389 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2019-11-06 18:55:13,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3153 states. [2019-11-06 18:55:13,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3153 to 3153. [2019-11-06 18:55:13,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3153 states. [2019-11-06 18:55:13,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3153 states to 3153 states and 4219 transitions. [2019-11-06 18:55:13,512 INFO L78 Accepts]: Start accepts. Automaton has 3153 states and 4219 transitions. Word has length 132 [2019-11-06 18:55:13,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 18:55:13,512 INFO L462 AbstractCegarLoop]: Abstraction has 3153 states and 4219 transitions. [2019-11-06 18:55:13,512 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-06 18:55:13,513 INFO L276 IsEmpty]: Start isEmpty. Operand 3153 states and 4219 transitions. [2019-11-06 18:55:13,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2019-11-06 18:55:13,521 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 18:55:13,521 INFO L410 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 18:55:13,725 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 18:55:13,725 INFO L410 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 18:55:13,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 18:55:13,726 INFO L82 PathProgramCache]: Analyzing trace with hash -2131672726, now seen corresponding path program 1 times [2019-11-06 18:55:13,730 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 18:55:13,731 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640590535] [2019-11-06 18:55:13,731 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 18:55:13,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 18:55:13,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 18:55:13,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 18:55:13,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 18:55:13,908 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 42 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-06 18:55:13,909 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640590535] [2019-11-06 18:55:13,909 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1133251882] [2019-11-06 18:55:13,909 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2019-11-06 18:55:14,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 18:55:14,025 INFO L256 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-06 18:55:14,034 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-06 18:55:14,105 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 43 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 18:55:14,107 INFO L218 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-06 18:55:14,107 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5] total 11 [2019-11-06 18:55:14,107 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124691540] [2019-11-06 18:55:14,108 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-06 18:55:14,108 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 18:55:14,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-06 18:55:14,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-11-06 18:55:14,109 INFO L87 Difference]: Start difference. First operand 3153 states and 4219 transitions. Second operand 11 states. [2019-11-06 18:55:17,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 18:55:17,101 INFO L93 Difference]: Finished difference Result 7752 states and 11766 transitions. [2019-11-06 18:55:17,101 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-11-06 18:55:17,101 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 136 [2019-11-06 18:55:17,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 18:55:17,134 INFO L225 Difference]: With dead ends: 7752 [2019-11-06 18:55:17,135 INFO L226 Difference]: Without dead ends: 4605 [2019-11-06 18:55:17,144 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420 [2019-11-06 18:55:17,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4605 states. [2019-11-06 18:55:17,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4605 to 4292. [2019-11-06 18:55:17,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4292 states. [2019-11-06 18:55:17,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4292 states to 4292 states and 5984 transitions. [2019-11-06 18:55:17,323 INFO L78 Accepts]: Start accepts. Automaton has 4292 states and 5984 transitions. Word has length 136 [2019-11-06 18:55:17,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 18:55:17,323 INFO L462 AbstractCegarLoop]: Abstraction has 4292 states and 5984 transitions. [2019-11-06 18:55:17,323 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-06 18:55:17,323 INFO L276 IsEmpty]: Start isEmpty. Operand 4292 states and 5984 transitions. [2019-11-06 18:55:17,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2019-11-06 18:55:17,341 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 18:55:17,342 INFO L410 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 18:55:17,546 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 18:55:17,547 INFO L410 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 18:55:17,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 18:55:17,547 INFO L82 PathProgramCache]: Analyzing trace with hash 910063858, now seen corresponding path program 1 times [2019-11-06 18:55:17,547 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 18:55:17,547 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173335223] [2019-11-06 18:55:17,547 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 18:55:17,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 18:55:17,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 18:55:17,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 18:55:17,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 18:55:17,725 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 39 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-11-06 18:55:17,725 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173335223] [2019-11-06 18:55:17,726 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1808419694] [2019-11-06 18:55:17,726 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2019-11-06 18:55:17,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 18:55:17,819 INFO L256 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-06 18:55:17,824 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-06 18:55:17,869 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 24 proven. 25 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-11-06 18:55:17,869 INFO L218 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-06 18:55:17,869 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 7 [2019-11-06 18:55:17,870 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288421190] [2019-11-06 18:55:17,870 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-06 18:55:17,870 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 18:55:17,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-06 18:55:17,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-11-06 18:55:17,871 INFO L87 Difference]: Start difference. First operand 4292 states and 5984 transitions. Second operand 7 states. [2019-11-06 18:55:19,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 18:55:19,682 INFO L93 Difference]: Finished difference Result 10127 states and 15562 transitions. [2019-11-06 18:55:19,682 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-06 18:55:19,682 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 140 [2019-11-06 18:55:19,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 18:55:19,724 INFO L225 Difference]: With dead ends: 10127 [2019-11-06 18:55:19,724 INFO L226 Difference]: Without dead ends: 5845 [2019-11-06 18:55:19,744 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2019-11-06 18:55:19,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5845 states. [2019-11-06 18:55:20,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5845 to 5325. [2019-11-06 18:55:20,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5325 states. [2019-11-06 18:55:20,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5325 states to 5325 states and 7464 transitions. [2019-11-06 18:55:20,038 INFO L78 Accepts]: Start accepts. Automaton has 5325 states and 7464 transitions. Word has length 140 [2019-11-06 18:55:20,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 18:55:20,038 INFO L462 AbstractCegarLoop]: Abstraction has 5325 states and 7464 transitions. [2019-11-06 18:55:20,038 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-06 18:55:20,038 INFO L276 IsEmpty]: Start isEmpty. Operand 5325 states and 7464 transitions. [2019-11-06 18:55:20,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2019-11-06 18:55:20,078 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 18:55:20,078 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 18:55:20,292 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 18:55:20,292 INFO L410 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 18:55:20,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 18:55:20,293 INFO L82 PathProgramCache]: Analyzing trace with hash 854088885, now seen corresponding path program 1 times [2019-11-06 18:55:20,293 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 18:55:20,293 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450291562] [2019-11-06 18:55:20,293 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 18:55:20,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 18:55:20,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 18:55:20,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 18:55:20,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 18:55:20,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 18:55:20,483 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 91 proven. 18 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-11-06 18:55:20,484 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450291562] [2019-11-06 18:55:20,485 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1622920246] [2019-11-06 18:55:20,485 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2019-11-06 18:55:20,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 18:55:20,635 INFO L256 TraceCheckSpWp]: Trace formula consists of 520 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-06 18:55:20,638 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-06 18:55:20,729 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 62 proven. 2 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2019-11-06 18:55:20,729 INFO L218 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-06 18:55:20,729 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5] total 11 [2019-11-06 18:55:20,730 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255772632] [2019-11-06 18:55:20,730 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-06 18:55:20,730 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 18:55:20,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-06 18:55:20,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2019-11-06 18:55:20,736 INFO L87 Difference]: Start difference. First operand 5325 states and 7464 transitions. Second operand 11 states. [2019-11-06 18:55:25,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 18:55:25,996 INFO L93 Difference]: Finished difference Result 14231 states and 21344 transitions. [2019-11-06 18:55:25,997 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2019-11-06 18:55:25,997 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 184 [2019-11-06 18:55:25,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 18:55:25,998 INFO L225 Difference]: With dead ends: 14231 [2019-11-06 18:55:25,998 INFO L226 Difference]: Without dead ends: 0 [2019-11-06 18:55:26,045 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 208 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=212, Invalid=780, Unknown=0, NotChecked=0, Total=992 [2019-11-06 18:55:26,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-06 18:55:26,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-06 18:55:26,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-06 18:55:26,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-06 18:55:26,046 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 184 [2019-11-06 18:55:26,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 18:55:26,046 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-06 18:55:26,047 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-06 18:55:26,047 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-06 18:55:26,047 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-06 18:55:26,251 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 18:55:26,256 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-06 18:55:28,682 WARN L191 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 486 DAG size of output: 262 [2019-11-06 18:55:29,647 WARN L191 SmtUtils]: Spent 962.00 ms on a formula simplification. DAG size of input: 486 DAG size of output: 262 [2019-11-06 18:55:30,499 WARN L191 SmtUtils]: Spent 758.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 50 [2019-11-06 18:55:31,723 WARN L191 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 234 DAG size of output: 41 [2019-11-06 18:55:32,950 WARN L191 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 234 DAG size of output: 41 [2019-11-06 18:55:32,952 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-11-06 18:55:32,953 INFO L439 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a12~0 |old(~a12~0)|) (= ~z~0 |old(~z~0)|) (= ~w~0 |old(~w~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~a21~0 |old(~a21~0)|) (= ~c~0 |old(~c~0)|) (= ~a7~0 |old(~a7~0)|) (= ~v~0 |old(~v~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a16~0 |old(~a16~0)|) (= ~a8~0 |old(~a8~0)|) (= ~y~0 |old(~y~0)|) (= ~f~0 |old(~f~0)|) (= ~a~0 |old(~a~0)|) (= ~x~0 |old(~x~0)|) (= ~b~0 |old(~b~0)|) (= ~a20~0 |old(~a20~0)|) (= ~d~0 |old(~d~0)|)) [2019-11-06 18:55:32,953 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-11-06 18:55:32,953 INFO L443 ceAbstractionStarter]: For program point L333(lines 333 390) no Hoare annotation was computed. [2019-11-06 18:55:32,953 INFO L443 ceAbstractionStarter]: For program point L102(lines 102 390) no Hoare annotation was computed. [2019-11-06 18:55:32,953 INFO L443 ceAbstractionStarter]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 18:55:32,953 INFO L443 ceAbstractionStarter]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 18:55:32,953 INFO L443 ceAbstractionStarter]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 18:55:32,953 INFO L443 ceAbstractionStarter]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 18:55:32,953 INFO L443 ceAbstractionStarter]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 18:55:32,954 INFO L443 ceAbstractionStarter]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 18:55:32,954 INFO L443 ceAbstractionStarter]: For program point L268(lines 268 390) no Hoare annotation was computed. [2019-11-06 18:55:32,954 INFO L443 ceAbstractionStarter]: For program point L136(lines 136 390) no Hoare annotation was computed. [2019-11-06 18:55:32,954 INFO L443 ceAbstractionStarter]: For program point L566(line 566) no Hoare annotation was computed. [2019-11-06 18:55:32,954 INFO L443 ceAbstractionStarter]: For program point L533(line 533) no Hoare annotation was computed. [2019-11-06 18:55:32,954 INFO L443 ceAbstractionStarter]: For program point L500(line 500) no Hoare annotation was computed. [2019-11-06 18:55:32,954 INFO L443 ceAbstractionStarter]: For program point L467(line 467) no Hoare annotation was computed. [2019-11-06 18:55:32,954 INFO L443 ceAbstractionStarter]: For program point L434(line 434) no Hoare annotation was computed. [2019-11-06 18:55:32,954 INFO L443 ceAbstractionStarter]: For program point L401(line 401) no Hoare annotation was computed. [2019-11-06 18:55:32,954 INFO L443 ceAbstractionStarter]: For program point L203(lines 203 390) no Hoare annotation was computed. [2019-11-06 18:55:32,955 INFO L443 ceAbstractionStarter]: For program point L72(lines 72 390) no Hoare annotation was computed. [2019-11-06 18:55:32,955 INFO L443 ceAbstractionStarter]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 18:55:32,955 INFO L443 ceAbstractionStarter]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 18:55:32,955 INFO L443 ceAbstractionStarter]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 18:55:32,955 INFO L443 ceAbstractionStarter]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 18:55:32,955 INFO L443 ceAbstractionStarter]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 18:55:32,955 INFO L443 ceAbstractionStarter]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 18:55:32,955 INFO L443 ceAbstractionStarter]: For program point L337(lines 337 390) no Hoare annotation was computed. [2019-11-06 18:55:32,956 INFO L443 ceAbstractionStarter]: For program point L238(lines 238 390) no Hoare annotation was computed. [2019-11-06 18:55:32,956 INFO L443 ceAbstractionStarter]: For program point L569(line 569) no Hoare annotation was computed. [2019-11-06 18:55:32,956 INFO L443 ceAbstractionStarter]: For program point L536(line 536) no Hoare annotation was computed. [2019-11-06 18:55:32,956 INFO L443 ceAbstractionStarter]: For program point L503(line 503) no Hoare annotation was computed. [2019-11-06 18:55:32,956 INFO L443 ceAbstractionStarter]: For program point L470(line 470) no Hoare annotation was computed. [2019-11-06 18:55:32,956 INFO L443 ceAbstractionStarter]: For program point L437(line 437) no Hoare annotation was computed. [2019-11-06 18:55:32,956 INFO L443 ceAbstractionStarter]: For program point L404(line 404) no Hoare annotation was computed. [2019-11-06 18:55:32,956 INFO L443 ceAbstractionStarter]: For program point L173(lines 173 390) no Hoare annotation was computed. [2019-11-06 18:55:32,957 INFO L443 ceAbstractionStarter]: For program point L140(lines 140 390) no Hoare annotation was computed. [2019-11-06 18:55:32,957 INFO L443 ceAbstractionStarter]: For program point L372(lines 372 390) no Hoare annotation was computed. [2019-11-06 18:55:32,957 INFO L443 ceAbstractionStarter]: For program point L306(lines 306 390) no Hoare annotation was computed. [2019-11-06 18:55:32,957 INFO L443 ceAbstractionStarter]: For program point L273(lines 273 390) no Hoare annotation was computed. [2019-11-06 18:55:32,957 INFO L443 ceAbstractionStarter]: For program point L108(lines 108 390) no Hoare annotation was computed. [2019-11-06 18:55:32,957 INFO L443 ceAbstractionStarter]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2019-11-06 18:55:32,957 INFO L443 ceAbstractionStarter]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 18:55:32,957 INFO L443 ceAbstractionStarter]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 18:55:32,958 INFO L443 ceAbstractionStarter]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 18:55:32,958 INFO L443 ceAbstractionStarter]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 18:55:32,958 INFO L443 ceAbstractionStarter]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 18:55:32,958 INFO L443 ceAbstractionStarter]: For program point L208(lines 208 390) no Hoare annotation was computed. [2019-11-06 18:55:32,958 INFO L443 ceAbstractionStarter]: For program point L43(lines 43 390) no Hoare annotation was computed. [2019-11-06 18:55:32,958 INFO L443 ceAbstractionStarter]: For program point L572(line 572) no Hoare annotation was computed. [2019-11-06 18:55:32,958 INFO L443 ceAbstractionStarter]: For program point L539(line 539) no Hoare annotation was computed. [2019-11-06 18:55:32,958 INFO L443 ceAbstractionStarter]: For program point L506(line 506) no Hoare annotation was computed. [2019-11-06 18:55:32,959 INFO L443 ceAbstractionStarter]: For program point L473(line 473) no Hoare annotation was computed. [2019-11-06 18:55:32,959 INFO L443 ceAbstractionStarter]: For program point L440(line 440) no Hoare annotation was computed. [2019-11-06 18:55:32,959 INFO L443 ceAbstractionStarter]: For program point L407(line 407) no Hoare annotation was computed. [2019-11-06 18:55:32,959 INFO L443 ceAbstractionStarter]: For program point L144(lines 144 390) no Hoare annotation was computed. [2019-11-06 18:55:32,959 INFO L443 ceAbstractionStarter]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 18:55:32,959 INFO L443 ceAbstractionStarter]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 18:55:32,959 INFO L443 ceAbstractionStarter]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 18:55:32,959 INFO L443 ceAbstractionStarter]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 18:55:32,960 INFO L443 ceAbstractionStarter]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 18:55:32,960 INFO L443 ceAbstractionStarter]: For program point L178(lines 178 390) no Hoare annotation was computed. [2019-11-06 18:55:32,960 INFO L443 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 446) no Hoare annotation was computed. [2019-11-06 18:55:32,960 INFO L443 ceAbstractionStarter]: For program point L542(line 542) no Hoare annotation was computed. [2019-11-06 18:55:32,960 INFO L443 ceAbstractionStarter]: For program point L509(line 509) no Hoare annotation was computed. [2019-11-06 18:55:32,960 INFO L443 ceAbstractionStarter]: For program point L476(line 476) no Hoare annotation was computed. [2019-11-06 18:55:32,960 INFO L443 ceAbstractionStarter]: For program point L443(line 443) no Hoare annotation was computed. [2019-11-06 18:55:32,960 INFO L443 ceAbstractionStarter]: For program point L410(line 410) no Hoare annotation was computed. [2019-11-06 18:55:32,961 INFO L443 ceAbstractionStarter]: For program point L377(lines 377 390) no Hoare annotation was computed. [2019-11-06 18:55:32,961 INFO L443 ceAbstractionStarter]: For program point L278(lines 278 390) no Hoare annotation was computed. [2019-11-06 18:55:32,961 INFO L443 ceAbstractionStarter]: For program point L245(lines 245 390) no Hoare annotation was computed. [2019-11-06 18:55:32,961 INFO L443 ceAbstractionStarter]: For program point L80(lines 80 390) no Hoare annotation was computed. [2019-11-06 18:55:32,961 INFO L443 ceAbstractionStarter]: For program point L345(lines 345 390) no Hoare annotation was computed. [2019-11-06 18:55:32,961 INFO L443 ceAbstractionStarter]: For program point L312(lines 312 390) no Hoare annotation was computed. [2019-11-06 18:55:32,961 INFO L443 ceAbstractionStarter]: For program point L114(lines 114 390) no Hoare annotation was computed. [2019-11-06 18:55:32,961 INFO L443 ceAbstractionStarter]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 18:55:32,961 INFO L443 ceAbstractionStarter]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 18:55:32,962 INFO L443 ceAbstractionStarter]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 18:55:32,962 INFO L443 ceAbstractionStarter]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 18:55:32,962 INFO L443 ceAbstractionStarter]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 18:55:32,962 INFO L443 ceAbstractionStarter]: For program point L214(lines 214 390) no Hoare annotation was computed. [2019-11-06 18:55:32,962 INFO L443 ceAbstractionStarter]: For program point L148(lines 148 390) no Hoare annotation was computed. [2019-11-06 18:55:32,962 INFO L443 ceAbstractionStarter]: For program point L49(lines 49 390) no Hoare annotation was computed. [2019-11-06 18:55:32,962 INFO L443 ceAbstractionStarter]: For program point L545(line 545) no Hoare annotation was computed. [2019-11-06 18:55:32,962 INFO L443 ceAbstractionStarter]: For program point L512(line 512) no Hoare annotation was computed. [2019-11-06 18:55:32,962 INFO L443 ceAbstractionStarter]: For program point L479(line 479) no Hoare annotation was computed. [2019-11-06 18:55:32,963 INFO L443 ceAbstractionStarter]: For program point L446(line 446) no Hoare annotation was computed. [2019-11-06 18:55:32,963 INFO L443 ceAbstractionStarter]: For program point L413(line 413) no Hoare annotation was computed. [2019-11-06 18:55:32,963 INFO L443 ceAbstractionStarter]: For program point L84(lines 84 390) no Hoare annotation was computed. [2019-11-06 18:55:32,963 INFO L443 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2019-11-06 18:55:32,963 INFO L443 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2019-11-06 18:55:32,963 INFO L443 ceAbstractionStarter]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 18:55:32,963 INFO L443 ceAbstractionStarter]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 18:55:32,963 INFO L443 ceAbstractionStarter]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 18:55:32,964 INFO L443 ceAbstractionStarter]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 18:55:32,964 INFO L443 ceAbstractionStarter]: For program point L382(lines 382 390) no Hoare annotation was computed. [2019-11-06 18:55:32,964 INFO L443 ceAbstractionStarter]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 18:55:32,964 INFO L443 ceAbstractionStarter]: For program point L316(lines 316 390) no Hoare annotation was computed. [2019-11-06 18:55:32,964 INFO L443 ceAbstractionStarter]: For program point L250(lines 250 390) no Hoare annotation was computed. [2019-11-06 18:55:32,964 INFO L443 ceAbstractionStarter]: For program point L548(line 548) no Hoare annotation was computed. [2019-11-06 18:55:32,964 INFO L443 ceAbstractionStarter]: For program point L515(line 515) no Hoare annotation was computed. [2019-11-06 18:55:32,964 INFO L443 ceAbstractionStarter]: For program point L482(line 482) no Hoare annotation was computed. [2019-11-06 18:55:32,964 INFO L443 ceAbstractionStarter]: For program point L449(line 449) no Hoare annotation was computed. [2019-11-06 18:55:32,965 INFO L443 ceAbstractionStarter]: For program point L416(line 416) no Hoare annotation was computed. [2019-11-06 18:55:32,965 INFO L443 ceAbstractionStarter]: For program point L218(lines 218 390) no Hoare annotation was computed. [2019-11-06 18:55:32,965 INFO L443 ceAbstractionStarter]: For program point L152(lines 152 390) no Hoare annotation was computed. [2019-11-06 18:55:32,965 INFO L443 ceAbstractionStarter]: For program point L119(lines 119 390) no Hoare annotation was computed. [2019-11-06 18:55:32,965 INFO L443 ceAbstractionStarter]: For program point L318(lines 318 390) no Hoare annotation was computed. [2019-11-06 18:55:32,965 INFO L443 ceAbstractionStarter]: For program point L186(lines 186 390) no Hoare annotation was computed. [2019-11-06 18:55:32,965 INFO L443 ceAbstractionStarter]: For program point L54(lines 54 390) no Hoare annotation was computed. [2019-11-06 18:55:32,965 INFO L443 ceAbstractionStarter]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 18:55:32,966 INFO L443 ceAbstractionStarter]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 18:55:32,966 INFO L443 ceAbstractionStarter]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 18:55:32,966 INFO L443 ceAbstractionStarter]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 18:55:32,966 INFO L443 ceAbstractionStarter]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 18:55:32,966 INFO L443 ceAbstractionStarter]: For program point L286(lines 286 390) no Hoare annotation was computed. [2019-11-06 18:55:32,966 INFO L443 ceAbstractionStarter]: For program point L551(line 551) no Hoare annotation was computed. [2019-11-06 18:55:32,966 INFO L443 ceAbstractionStarter]: For program point L518(line 518) no Hoare annotation was computed. [2019-11-06 18:55:32,966 INFO L443 ceAbstractionStarter]: For program point L485(line 485) no Hoare annotation was computed. [2019-11-06 18:55:32,966 INFO L443 ceAbstractionStarter]: For program point L452(line 452) no Hoare annotation was computed. [2019-11-06 18:55:32,967 INFO L443 ceAbstractionStarter]: For program point L419(line 419) no Hoare annotation was computed. [2019-11-06 18:55:32,967 INFO L443 ceAbstractionStarter]: For program point L353(lines 353 390) no Hoare annotation was computed. [2019-11-06 18:55:32,967 INFO L443 ceAbstractionStarter]: For program point L189(lines 189 390) no Hoare annotation was computed. [2019-11-06 18:55:32,967 INFO L443 ceAbstractionStarter]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 18:55:32,967 INFO L443 ceAbstractionStarter]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 18:55:32,967 INFO L443 ceAbstractionStarter]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 18:55:32,967 INFO L443 ceAbstractionStarter]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 18:55:32,967 INFO L443 ceAbstractionStarter]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 18:55:32,968 INFO L443 ceAbstractionStarter]: For program point L355(lines 355 390) no Hoare annotation was computed. [2019-11-06 18:55:32,968 INFO L443 ceAbstractionStarter]: For program point L256(lines 256 390) no Hoare annotation was computed. [2019-11-06 18:55:32,968 INFO L443 ceAbstractionStarter]: For program point L223(lines 223 390) no Hoare annotation was computed. [2019-11-06 18:55:32,968 INFO L443 ceAbstractionStarter]: For program point L124(lines 124 390) no Hoare annotation was computed. [2019-11-06 18:55:32,968 INFO L443 ceAbstractionStarter]: For program point L554(line 554) no Hoare annotation was computed. [2019-11-06 18:55:32,968 INFO L443 ceAbstractionStarter]: For program point L521(line 521) no Hoare annotation was computed. [2019-11-06 18:55:32,968 INFO L443 ceAbstractionStarter]: For program point L488(line 488) no Hoare annotation was computed. [2019-11-06 18:55:32,968 INFO L443 ceAbstractionStarter]: For program point L455(line 455) no Hoare annotation was computed. [2019-11-06 18:55:32,969 INFO L443 ceAbstractionStarter]: For program point L422(line 422) no Hoare annotation was computed. [2019-11-06 18:55:32,969 INFO L443 ceAbstractionStarter]: For program point L92(lines 92 390) no Hoare annotation was computed. [2019-11-06 18:55:32,969 INFO L439 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse1 (not (<= |old(~a7~0)| 0))) (.cse4 (not (<= |old(~a8~0)| 13))) (.cse0 (not (= 4 |old(~a16~0)|))) (.cse6 (= 1 |old(~a21~0)|)) (.cse3 (not (<= 5 |old(~a16~0)|))) (.cse5 (not (= 1 |old(~a7~0)|))) (.cse2 (and (= ~a21~0 |old(~a21~0)|) (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a16~0 |old(~a16~0)|) (= ~a8~0 |old(~a8~0)|) (= ~a20~0 |old(~a20~0)|)))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse2 .cse1) (or .cse4 .cse0 .cse5 .cse2 (not (= 1 |old(~a17~0)|))) (or .cse2 .cse0 .cse5 (not (<= |old(~a20~0)| 0))) (or .cse4 .cse3 .cse6 .cse2 .cse5) (or .cse4 .cse2 .cse5 (or .cse0 .cse6)) (or .cse3 (not (<= |old(~a16~0)| 5)) .cse5 .cse2))) [2019-11-06 18:55:32,969 INFO L443 ceAbstractionStarter]: For program point L324(lines 324 390) no Hoare annotation was computed. [2019-11-06 18:55:32,969 INFO L443 ceAbstractionStarter]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 18:55:32,969 INFO L443 ceAbstractionStarter]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 18:55:32,969 INFO L443 ceAbstractionStarter]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 18:55:32,970 INFO L443 ceAbstractionStarter]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 18:55:32,970 INFO L443 ceAbstractionStarter]: For program point L391(lines 391 393) no Hoare annotation was computed. [2019-11-06 18:55:32,970 INFO L443 ceAbstractionStarter]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 18:55:32,970 INFO L443 ceAbstractionStarter]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2019-11-06 18:55:32,970 INFO L443 ceAbstractionStarter]: For program point L292(lines 292 390) no Hoare annotation was computed. [2019-11-06 18:55:32,970 INFO L443 ceAbstractionStarter]: For program point L160(lines 160 390) no Hoare annotation was computed. [2019-11-06 18:55:32,970 INFO L443 ceAbstractionStarter]: For program point L557(line 557) no Hoare annotation was computed. [2019-11-06 18:55:32,970 INFO L443 ceAbstractionStarter]: For program point L524(line 524) no Hoare annotation was computed. [2019-11-06 18:55:32,970 INFO L443 ceAbstractionStarter]: For program point L491(line 491) no Hoare annotation was computed. [2019-11-06 18:55:32,970 INFO L443 ceAbstractionStarter]: For program point L458(line 458) no Hoare annotation was computed. [2019-11-06 18:55:32,971 INFO L443 ceAbstractionStarter]: For program point L425(line 425) no Hoare annotation was computed. [2019-11-06 18:55:32,971 INFO L443 ceAbstractionStarter]: For program point L392(line 392) no Hoare annotation was computed. [2019-11-06 18:55:32,971 INFO L443 ceAbstractionStarter]: For program point L194(lines 194 390) no Hoare annotation was computed. [2019-11-06 18:55:32,971 INFO L443 ceAbstractionStarter]: For program point L62(lines 62 390) no Hoare annotation was computed. [2019-11-06 18:55:32,971 INFO L443 ceAbstractionStarter]: For program point L261(lines 261 390) no Hoare annotation was computed. [2019-11-06 18:55:32,971 INFO L443 ceAbstractionStarter]: For program point L129(lines 129 390) no Hoare annotation was computed. [2019-11-06 18:55:32,971 INFO L443 ceAbstractionStarter]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 18:55:32,971 INFO L443 ceAbstractionStarter]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 18:55:32,971 INFO L443 ceAbstractionStarter]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 18:55:32,972 INFO L443 ceAbstractionStarter]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 18:55:32,972 INFO L443 ceAbstractionStarter]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 18:55:32,972 INFO L443 ceAbstractionStarter]: For program point L361(lines 361 390) no Hoare annotation was computed. [2019-11-06 18:55:32,972 INFO L443 ceAbstractionStarter]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 18:55:32,972 INFO L443 ceAbstractionStarter]: For program point L97(lines 97 390) no Hoare annotation was computed. [2019-11-06 18:55:32,972 INFO L443 ceAbstractionStarter]: For program point L31(lines 31 390) no Hoare annotation was computed. [2019-11-06 18:55:32,972 INFO L443 ceAbstractionStarter]: For program point L560(line 560) no Hoare annotation was computed. [2019-11-06 18:55:32,972 INFO L443 ceAbstractionStarter]: For program point L527(line 527) no Hoare annotation was computed. [2019-11-06 18:55:32,972 INFO L443 ceAbstractionStarter]: For program point L494(line 494) no Hoare annotation was computed. [2019-11-06 18:55:32,973 INFO L443 ceAbstractionStarter]: For program point L461(line 461) no Hoare annotation was computed. [2019-11-06 18:55:32,973 INFO L443 ceAbstractionStarter]: For program point L428(line 428) no Hoare annotation was computed. [2019-11-06 18:55:32,973 INFO L443 ceAbstractionStarter]: For program point L395(line 395) no Hoare annotation was computed. [2019-11-06 18:55:32,973 INFO L443 ceAbstractionStarter]: For program point L329(lines 329 390) no Hoare annotation was computed. [2019-11-06 18:55:32,973 INFO L443 ceAbstractionStarter]: For program point L197(lines 197 390) no Hoare annotation was computed. [2019-11-06 18:55:32,973 INFO L443 ceAbstractionStarter]: For program point L65(lines 65 390) no Hoare annotation was computed. [2019-11-06 18:55:32,973 INFO L443 ceAbstractionStarter]: For program point L363(lines 363 390) no Hoare annotation was computed. [2019-11-06 18:55:32,973 INFO L443 ceAbstractionStarter]: For program point L231(lines 231 390) no Hoare annotation was computed. [2019-11-06 18:55:32,973 INFO L443 ceAbstractionStarter]: For program point L165(lines 165 390) no Hoare annotation was computed. [2019-11-06 18:55:32,973 INFO L443 ceAbstractionStarter]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 18:55:32,974 INFO L443 ceAbstractionStarter]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 18:55:32,974 INFO L443 ceAbstractionStarter]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 18:55:32,974 INFO L443 ceAbstractionStarter]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 18:55:32,974 INFO L443 ceAbstractionStarter]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 18:55:32,974 INFO L443 ceAbstractionStarter]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 18:55:32,974 INFO L443 ceAbstractionStarter]: For program point L265(lines 265 390) no Hoare annotation was computed. [2019-11-06 18:55:32,974 INFO L443 ceAbstractionStarter]: For program point L563(line 563) no Hoare annotation was computed. [2019-11-06 18:55:32,974 INFO L443 ceAbstractionStarter]: For program point L530(line 530) no Hoare annotation was computed. [2019-11-06 18:55:32,975 INFO L443 ceAbstractionStarter]: For program point L497(line 497) no Hoare annotation was computed. [2019-11-06 18:55:32,975 INFO L443 ceAbstractionStarter]: For program point L464(line 464) no Hoare annotation was computed. [2019-11-06 18:55:32,975 INFO L443 ceAbstractionStarter]: For program point L431(line 431) no Hoare annotation was computed. [2019-11-06 18:55:32,975 INFO L443 ceAbstractionStarter]: For program point L398(line 398) no Hoare annotation was computed. [2019-11-06 18:55:32,975 INFO L443 ceAbstractionStarter]: For program point L365(lines 365 390) no Hoare annotation was computed. [2019-11-06 18:55:32,975 INFO L443 ceAbstractionStarter]: For program point L299(lines 299 390) no Hoare annotation was computed. [2019-11-06 18:55:32,975 INFO L443 ceAbstractionStarter]: For program point L35(lines 35 390) no Hoare annotation was computed. [2019-11-06 18:55:32,975 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-06 18:55:32,975 INFO L439 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a16~0 5) (= ~a17~0 1) (<= 5 ~a16~0) (<= ~a7~0 0)) [2019-11-06 18:55:32,976 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-11-06 18:55:32,976 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-06 18:55:32,976 INFO L439 ceAbstractionStarter]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (not (<= 5 |old(~a16~0)|)) (not (<= |old(~a16~0)| 5)) (and (= ~a21~0 |old(~a21~0)|) (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a16~0 |old(~a16~0)|) (= ~a8~0 |old(~a8~0)|) (= ~a20~0 |old(~a20~0)|)) (not (<= |old(~a7~0)| 0)) (not (= 1 |old(~a17~0)|))) [2019-11-06 18:55:32,976 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2019-11-06 18:55:32,976 INFO L439 ceAbstractionStarter]: At program point L591(line 591) the Hoare annotation is: (let ((.cse4 (not (= ~a21~0 1))) (.cse3 (<= ~a8~0 13)) (.cse1 (= ~a16~0 4)) (.cse2 (<= ~a7~0 0)) (.cse0 (= 1 ~a7~0)) (.cse5 (<= 5 ~a16~0))) (or (and .cse0 .cse1 (<= ~a20~0 0)) (not (<= 5 |old(~a16~0)|)) (not (<= |old(~a7~0)| 0)) (and .cse1 .cse2) (not (<= |old(~a16~0)| 5)) (and .cse3 .cse4 .cse0 .cse1) (and .cse3 .cse0 (and .cse4 .cse5)) (and .cse3 .cse0 .cse1 (= ~a17~0 1)) (and .cse5 .cse2) (and .cse0 (<= ~a16~0 5) .cse5) (not (= 1 |old(~a17~0)|)))) [2019-11-06 18:55:32,976 INFO L443 ceAbstractionStarter]: For program point L591-1(line 591) no Hoare annotation was computed. [2019-11-06 18:55:32,976 INFO L443 ceAbstractionStarter]: For program point L588(line 588) no Hoare annotation was computed. [2019-11-06 18:55:32,977 INFO L439 ceAbstractionStarter]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse4 (not (= ~a21~0 1))) (.cse3 (<= ~a8~0 13)) (.cse1 (= ~a16~0 4)) (.cse2 (<= ~a7~0 0)) (.cse0 (= 1 ~a7~0)) (.cse5 (<= 5 ~a16~0))) (or (and .cse0 .cse1 (<= ~a20~0 0)) (not (<= 5 |old(~a16~0)|)) (not (<= |old(~a7~0)| 0)) (and .cse1 .cse2) (not (<= |old(~a16~0)| 5)) (and .cse3 .cse4 .cse0 .cse1) (and .cse3 .cse0 (and .cse4 .cse5)) (and .cse3 .cse0 .cse1 (= ~a17~0 1)) (and .cse5 .cse2) (and .cse0 (<= ~a16~0 5) .cse5) (not (= 1 |old(~a17~0)|)))) [2019-11-06 18:55:32,977 INFO L443 ceAbstractionStarter]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2019-11-06 18:55:32,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 06:55:32 BoogieIcfgContainer [2019-11-06 18:55:32,995 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-06 18:55:32,997 INFO L168 Benchmark]: Toolchain (without parser) took 29307.90 ms. Allocated memory was 146.8 MB in the beginning and 701.0 MB in the end (delta: 554.2 MB). Free memory was 102.8 MB in the beginning and 421.5 MB in the end (delta: -318.7 MB). Peak memory consumption was 514.3 MB. Max. memory is 7.1 GB. [2019-11-06 18:55:32,997 INFO L168 Benchmark]: CDTParser took 0.49 ms. Allocated memory is still 146.8 MB. Free memory is still 122.7 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-11-06 18:55:32,998 INFO L168 Benchmark]: CACSL2BoogieTranslator took 889.93 ms. Allocated memory was 146.8 MB in the beginning and 206.6 MB in the end (delta: 59.8 MB). Free memory was 102.4 MB in the beginning and 168.3 MB in the end (delta: -65.9 MB). Peak memory consumption was 25.2 MB. Max. memory is 7.1 GB. [2019-11-06 18:55:32,999 INFO L168 Benchmark]: Boogie Preprocessor took 101.66 ms. Allocated memory is still 206.6 MB. Free memory was 168.3 MB in the beginning and 163.4 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2019-11-06 18:55:32,999 INFO L168 Benchmark]: RCFGBuilder took 1214.45 ms. Allocated memory was 206.6 MB in the beginning and 234.9 MB in the end (delta: 28.3 MB). Free memory was 163.4 MB in the beginning and 171.3 MB in the end (delta: -7.9 MB). Peak memory consumption was 75.0 MB. Max. memory is 7.1 GB. [2019-11-06 18:55:33,000 INFO L168 Benchmark]: TraceAbstraction took 27097.22 ms. Allocated memory was 234.9 MB in the beginning and 701.0 MB in the end (delta: 466.1 MB). Free memory was 169.6 MB in the beginning and 421.5 MB in the end (delta: -251.8 MB). Peak memory consumption was 493.0 MB. Max. memory is 7.1 GB. [2019-11-06 18:55:33,003 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49 ms. Allocated memory is still 146.8 MB. Free memory is still 122.7 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 889.93 ms. Allocated memory was 146.8 MB in the beginning and 206.6 MB in the end (delta: 59.8 MB). Free memory was 102.4 MB in the beginning and 168.3 MB in the end (delta: -65.9 MB). Peak memory consumption was 25.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 101.66 ms. Allocated memory is still 206.6 MB. Free memory was 168.3 MB in the beginning and 163.4 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1214.45 ms. Allocated memory was 206.6 MB in the beginning and 234.9 MB in the end (delta: 28.3 MB). Free memory was 163.4 MB in the beginning and 171.3 MB in the end (delta: -7.9 MB). Peak memory consumption was 75.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 27097.22 ms. Allocated memory was 234.9 MB in the beginning and 701.0 MB in the end (delta: 466.1 MB). Free memory was 169.6 MB in the beginning and 421.5 MB in the end (delta: -251.8 MB). Peak memory consumption was 493.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 446]: 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: 583]: Loop Invariant Derived loop invariant: (((((((((((1 == a7 && a16 == 4) && a20 <= 0) || !(5 <= \old(a16))) || !(\old(a7) <= 0)) || (a16 == 4 && a7 <= 0)) || !(\old(a16) <= 5)) || (((a8 <= 13 && !(a21 == 1)) && 1 == a7) && a16 == 4)) || ((a8 <= 13 && 1 == a7) && !(a21 == 1) && 5 <= a16)) || (((a8 <= 13 && 1 == a7) && a16 == 4) && a17 == 1)) || (5 <= a16 && a7 <= 0)) || ((1 == a7 && a16 <= 5) && 5 <= a16)) || !(1 == \old(a17)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Result: SAFE, OverallTime: 27.0s, OverallIterations: 8, TraceHistogramMax: 4, AutomataDifference: 14.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 6.6s, HoareTripleCheckerStatistics: 497 SDtfs, 3483 SDslu, 397 SDs, 0 SdLazy, 8772 SolverSat, 1470 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 962 GetRequests, 873 SyntacticMatches, 2 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 291 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5325occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 8 MinimizatonAttempts, 857 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 398 PreInvPairs, 836 NumberOfFragments, 522 HoareAnnotationTreeSize, 398 FomulaSimplifications, 173370 FormulaSimplificationTreeSizeReduction, 3.3s HoareSimplificationTime, 7 FomulaSimplificationsInter, 15139 FormulaSimplificationTreeSizeReductionInter, 3.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 1826 NumberOfCodeBlocks, 1826 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 1812 ConstructedInterpolants, 0 QuantifiedInterpolants, 619955 SizeOfPredicates, 8 NumberOfNonLiveVariables, 2479 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 14 InterpolantComputations, 5 PerfectInterpolantSequences, 514/569 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...