/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_label13.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 11:22:25,440 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 11:22:25,443 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 11:22:25,455 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 11:22:25,455 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 11:22:25,456 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 11:22:25,458 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 11:22:25,460 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 11:22:25,461 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 11:22:25,462 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 11:22:25,463 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 11:22:25,464 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 11:22:25,465 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 11:22:25,466 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 11:22:25,467 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 11:22:25,468 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 11:22:25,469 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 11:22:25,470 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 11:22:25,471 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 11:22:25,473 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 11:22:25,475 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 11:22:25,476 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 11:22:25,477 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 11:22:25,478 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 11:22:25,481 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-07 11:22:25,491 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-07 11:22:25,505 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 11:22:25,505 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 11:22:25,506 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-07 11:22:25,507 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-07 11:22:25,507 INFO L138 SettingsManager]: * Use SBE=true [2020-07-07 11:22:25,507 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 11:22:25,507 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 11:22:25,507 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 11:22:25,508 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 11:22:25,508 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 11:22:25,508 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 11:22:25,508 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 11:22:25,508 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 11:22:25,508 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 11:22:25,509 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 11:22:25,509 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 11:22:25,509 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 11:22:25,509 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 11:22:25,509 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-07 11:22:25,510 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 11:22:25,510 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 11:22:25,510 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 11:22:25,510 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 11:22:25,510 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-07 11:22:25,511 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-07 11:22:25,511 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-07 11:22:25,511 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-07 11:22:25,511 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 11:22:25,511 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-07 11:22:25,511 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-07 11:22:25,801 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 11:22:25,819 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 11:22:25,821 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 11:22:25,823 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 11:22:25,823 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 11:22:25,823 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label13.c [2020-07-07 11:22:25,902 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc127789f/96ee053f2fb34e59b285beebd24e316f/FLAG06d8a18bd [2020-07-07 11:22:26,482 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 11:22:26,483 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label13.c [2020-07-07 11:22:26,506 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc127789f/96ee053f2fb34e59b285beebd24e316f/FLAG06d8a18bd [2020-07-07 11:22:26,805 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc127789f/96ee053f2fb34e59b285beebd24e316f [2020-07-07 11:22:26,816 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 11:22:26,819 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 11:22:26,820 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 11:22:26,820 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 11:22:26,824 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 11:22:26,825 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 11:22:26" (1/1) ... [2020-07-07 11:22:26,828 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4087cb65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:22:26, skipping insertion in model container [2020-07-07 11:22:26,828 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 11:22:26" (1/1) ... [2020-07-07 11:22:26,836 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 11:22:26,887 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 11:22:27,443 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 11:22:27,449 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 11:22:27,596 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 11:22:27,626 INFO L208 MainTranslator]: Completed translation [2020-07-07 11:22:27,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:22:27 WrapperNode [2020-07-07 11:22:27,627 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 11:22:27,628 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 11:22:27,628 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 11:22:27,629 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 11:22:27,647 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:22:27" (1/1) ... [2020-07-07 11:22:27,650 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:22:27" (1/1) ... [2020-07-07 11:22:27,693 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:22:27" (1/1) ... [2020-07-07 11:22:27,694 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:22:27" (1/1) ... [2020-07-07 11:22:27,746 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:22:27" (1/1) ... [2020-07-07 11:22:27,768 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:22:27" (1/1) ... [2020-07-07 11:22:27,776 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:22:27" (1/1) ... [2020-07-07 11:22:27,785 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 11:22:27,786 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 11:22:27,786 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 11:22:27,786 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 11:22:27,787 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:22:27" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 11:22:27,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 11:22:27,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 11:22:27,854 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-07 11:22:27,854 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 11:22:27,854 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-07 11:22:27,854 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 11:22:27,854 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-07 11:22:27,854 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-07 11:22:27,854 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 11:22:27,855 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 11:22:27,855 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 11:22:28,997 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 11:22:28,997 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-07 11:22:29,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 11:22:29 BoogieIcfgContainer [2020-07-07 11:22:29,004 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 11:22:29,005 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 11:22:29,006 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 11:22:29,009 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 11:22:29,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 11:22:26" (1/3) ... [2020-07-07 11:22:29,010 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a05c6a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 11:22:29, skipping insertion in model container [2020-07-07 11:22:29,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:22:27" (2/3) ... [2020-07-07 11:22:29,011 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a05c6a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 11:22:29, skipping insertion in model container [2020-07-07 11:22:29,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 11:22:29" (3/3) ... [2020-07-07 11:22:29,013 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label13.c [2020-07-07 11:22:29,025 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-07 11:22:29,034 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 11:22:29,048 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 11:22:29,074 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 11:22:29,075 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 11:22:29,075 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-07 11:22:29,075 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 11:22:29,075 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 11:22:29,075 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 11:22:29,076 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 11:22:29,076 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 11:22:29,102 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-07-07 11:22:29,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-07-07 11:22:29,117 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:22:29,119 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:22:29,119 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:22:29,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:22:29,128 INFO L82 PathProgramCache]: Analyzing trace with hash -2118591881, now seen corresponding path program 1 times [2020-07-07 11:22:29,141 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:22:29,141 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459685221] [2020-07-07 11:22:29,142 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:22:29,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:22:29,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:22:29,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:22:29,832 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459685221] [2020-07-07 11:22:29,833 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:22:29,834 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 11:22:29,834 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082192188] [2020-07-07 11:22:29,840 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-07 11:22:29,841 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:22:29,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-07 11:22:29,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-07 11:22:29,863 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 5 states. [2020-07-07 11:22:31,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:22:31,437 INFO L93 Difference]: Finished difference Result 557 states and 956 transitions. [2020-07-07 11:22:31,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-07 11:22:31,439 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 129 [2020-07-07 11:22:31,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:22:31,464 INFO L225 Difference]: With dead ends: 557 [2020-07-07 11:22:31,464 INFO L226 Difference]: Without dead ends: 286 [2020-07-07 11:22:31,471 INFO L675 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 [2020-07-07 11:22:31,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2020-07-07 11:22:31,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 280. [2020-07-07 11:22:31,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2020-07-07 11:22:31,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 408 transitions. [2020-07-07 11:22:31,544 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 408 transitions. Word has length 129 [2020-07-07 11:22:31,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:22:31,545 INFO L479 AbstractCegarLoop]: Abstraction has 280 states and 408 transitions. [2020-07-07 11:22:31,545 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-07 11:22:31,546 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 408 transitions. [2020-07-07 11:22:31,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-07-07 11:22:31,550 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:22:31,551 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:22:31,551 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 11:22:31,551 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:22:31,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:22:31,552 INFO L82 PathProgramCache]: Analyzing trace with hash -2105809670, now seen corresponding path program 1 times [2020-07-07 11:22:31,552 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:22:31,553 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604805100] [2020-07-07 11:22:31,553 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:22:31,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:22:31,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:22:31,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:22:31,740 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:22:31,740 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604805100] [2020-07-07 11:22:31,740 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:22:31,741 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-07 11:22:31,741 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962120611] [2020-07-07 11:22:31,743 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-07 11:22:31,743 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:22:31,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-07 11:22:31,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-07-07 11:22:31,744 INFO L87 Difference]: Start difference. First operand 280 states and 408 transitions. Second operand 8 states. [2020-07-07 11:22:33,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:22:33,640 INFO L93 Difference]: Finished difference Result 987 states and 1481 transitions. [2020-07-07 11:22:33,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-07 11:22:33,641 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 138 [2020-07-07 11:22:33,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:22:33,647 INFO L225 Difference]: With dead ends: 987 [2020-07-07 11:22:33,648 INFO L226 Difference]: Without dead ends: 713 [2020-07-07 11:22:33,650 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2020-07-07 11:22:33,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2020-07-07 11:22:33,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 699. [2020-07-07 11:22:33,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 699 states. [2020-07-07 11:22:33,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 978 transitions. [2020-07-07 11:22:33,710 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 978 transitions. Word has length 138 [2020-07-07 11:22:33,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:22:33,710 INFO L479 AbstractCegarLoop]: Abstraction has 699 states and 978 transitions. [2020-07-07 11:22:33,711 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-07 11:22:33,711 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 978 transitions. [2020-07-07 11:22:33,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-07-07 11:22:33,725 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:22:33,725 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:22:33,726 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 11:22:33,726 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:22:33,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:22:33,726 INFO L82 PathProgramCache]: Analyzing trace with hash 600184111, now seen corresponding path program 1 times [2020-07-07 11:22:33,727 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:22:33,727 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021859243] [2020-07-07 11:22:33,727 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:22:33,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:22:33,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:22:33,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:22:33,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:22:33,997 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 36 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-07 11:22:33,997 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021859243] [2020-07-07 11:22:33,998 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1694935740] [2020-07-07 11:22:33,998 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 [2020-07-07 11:22:34,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:22:34,113 INFO L264 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-07 11:22:34,125 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 11:22:34,219 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-07-07 11:22:34,220 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-07 11:22:34,220 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2020-07-07 11:22:34,221 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414812748] [2020-07-07 11:22:34,222 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 11:22:34,222 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:22:34,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 11:22:34,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-07-07 11:22:34,223 INFO L87 Difference]: Start difference. First operand 699 states and 978 transitions. Second operand 3 states. [2020-07-07 11:22:34,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:22:34,914 INFO L93 Difference]: Finished difference Result 2079 states and 2984 transitions. [2020-07-07 11:22:34,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 11:22:34,916 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 163 [2020-07-07 11:22:34,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:22:34,926 INFO L225 Difference]: With dead ends: 2079 [2020-07-07 11:22:34,926 INFO L226 Difference]: Without dead ends: 1386 [2020-07-07 11:22:34,929 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-07-07 11:22:34,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1386 states. [2020-07-07 11:22:34,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1386 to 1112. [2020-07-07 11:22:34,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1112 states. [2020-07-07 11:22:34,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1112 states to 1112 states and 1528 transitions. [2020-07-07 11:22:34,990 INFO L78 Accepts]: Start accepts. Automaton has 1112 states and 1528 transitions. Word has length 163 [2020-07-07 11:22:34,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:22:34,991 INFO L479 AbstractCegarLoop]: Abstraction has 1112 states and 1528 transitions. [2020-07-07 11:22:34,991 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 11:22:34,991 INFO L276 IsEmpty]: Start isEmpty. Operand 1112 states and 1528 transitions. [2020-07-07 11:22:34,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-07-07 11:22:34,997 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:22:34,997 INFO L422 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:22:35,211 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-07-07 11:22:35,212 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:22:35,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:22:35,213 INFO L82 PathProgramCache]: Analyzing trace with hash 1121452227, now seen corresponding path program 1 times [2020-07-07 11:22:35,213 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:22:35,214 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745962494] [2020-07-07 11:22:35,214 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:22:35,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:22:35,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:22:35,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:22:35,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:22:35,538 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 85 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-07 11:22:35,538 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745962494] [2020-07-07 11:22:35,539 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [788150100] [2020-07-07 11:22:35,539 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 [2020-07-07 11:22:35,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:22:35,696 INFO L264 TraceCheckSpWp]: Trace formula consists of 503 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-07 11:22:35,706 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 11:22:35,897 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 86 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:22:35,898 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-07 11:22:35,898 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5] total 11 [2020-07-07 11:22:35,900 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696567238] [2020-07-07 11:22:35,902 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-07 11:22:35,902 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:22:35,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-07 11:22:35,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-07-07 11:22:35,903 INFO L87 Difference]: Start difference. First operand 1112 states and 1528 transitions. Second operand 11 states. [2020-07-07 11:22:39,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:22:39,904 INFO L93 Difference]: Finished difference Result 3532 states and 5712 transitions. [2020-07-07 11:22:39,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-07-07 11:22:39,906 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 212 [2020-07-07 11:22:39,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:22:39,932 INFO L225 Difference]: With dead ends: 3532 [2020-07-07 11:22:39,933 INFO L226 Difference]: Without dead ends: 2426 [2020-07-07 11:22:39,938 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=268, Invalid=992, Unknown=0, NotChecked=0, Total=1260 [2020-07-07 11:22:39,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2426 states. [2020-07-07 11:22:40,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2426 to 1563. [2020-07-07 11:22:40,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1563 states. [2020-07-07 11:22:40,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1563 states to 1563 states and 2099 transitions. [2020-07-07 11:22:40,083 INFO L78 Accepts]: Start accepts. Automaton has 1563 states and 2099 transitions. Word has length 212 [2020-07-07 11:22:40,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:22:40,084 INFO L479 AbstractCegarLoop]: Abstraction has 1563 states and 2099 transitions. [2020-07-07 11:22:40,084 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-07 11:22:40,084 INFO L276 IsEmpty]: Start isEmpty. Operand 1563 states and 2099 transitions. [2020-07-07 11:22:40,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2020-07-07 11:22:40,092 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:22:40,092 INFO L422 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:22:40,305 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 11:22:40,306 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:22:40,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:22:40,307 INFO L82 PathProgramCache]: Analyzing trace with hash 1334176843, now seen corresponding path program 1 times [2020-07-07 11:22:40,307 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:22:40,308 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890432522] [2020-07-07 11:22:40,308 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:22:40,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:22:40,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:22:40,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:22:40,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:22:40,673 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 82 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-07 11:22:40,674 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890432522] [2020-07-07 11:22:40,675 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [527524532] [2020-07-07 11:22:40,675 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 [2020-07-07 11:22:40,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:22:40,810 INFO L264 TraceCheckSpWp]: Trace formula consists of 504 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-07 11:22:40,826 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 11:22:40,897 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-07 11:22:40,897 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-07 11:22:40,898 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 6 [2020-07-07 11:22:40,898 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634921815] [2020-07-07 11:22:40,899 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 11:22:40,899 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:22:40,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 11:22:40,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-07 11:22:40,900 INFO L87 Difference]: Start difference. First operand 1563 states and 2099 transitions. Second operand 3 states. [2020-07-07 11:22:41,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:22:41,396 INFO L93 Difference]: Finished difference Result 2266 states and 3014 transitions. [2020-07-07 11:22:41,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 11:22:41,397 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 216 [2020-07-07 11:22:41,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:22:41,398 INFO L225 Difference]: With dead ends: 2266 [2020-07-07 11:22:41,398 INFO L226 Difference]: Without dead ends: 0 [2020-07-07 11:22:41,403 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 223 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-07 11:22:41,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-07 11:22:41,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-07 11:22:41,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-07 11:22:41,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-07 11:22:41,405 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 216 [2020-07-07 11:22:41,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:22:41,406 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-07 11:22:41,406 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 11:22:41,406 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-07 11:22:41,406 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-07 11:22:41,618 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 11:22:41,622 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-07 11:22:41,959 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 17 [2020-07-07 11:22:42,132 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 17 [2020-07-07 11:22:42,594 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 40 [2020-07-07 11:22:42,683 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-07 11:22:42,683 INFO L264 CegarLoopResult]: 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)|)) [2020-07-07 11:22:42,684 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-07 11:22:42,684 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-07-07 11:22:42,684 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-07-07 11:22:42,684 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-07-07 11:22:42,684 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-07-07 11:22:42,684 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-07-07 11:22:42,685 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-07-07 11:22:42,685 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-07-07 11:22:42,685 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-07-07 11:22:42,685 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-07-07 11:22:42,685 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-07-07 11:22:42,685 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-07-07 11:22:42,686 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-07-07 11:22:42,686 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-07-07 11:22:42,686 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-07-07 11:22:42,686 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-07-07 11:22:42,686 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-07-07 11:22:42,686 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-07-07 11:22:42,686 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-07-07 11:22:42,687 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-07-07 11:22:42,687 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-07-07 11:22:42,687 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-07-07 11:22:42,687 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-07-07 11:22:42,687 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-07-07 11:22:42,687 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-07-07 11:22:42,688 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-07-07 11:22:42,688 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-07-07 11:22:42,688 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-07-07 11:22:42,688 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-07-07 11:22:42,688 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-07-07 11:22:42,688 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-07-07 11:22:42,688 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-07-07 11:22:42,688 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-07-07 11:22:42,689 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-07-07 11:22:42,689 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-07-07 11:22:42,689 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-07-07 11:22:42,689 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 545) no Hoare annotation was computed. [2020-07-07 11:22:42,689 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-07-07 11:22:42,689 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-07-07 11:22:42,689 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-07-07 11:22:42,690 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-07-07 11:22:42,690 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-07-07 11:22:42,690 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-07-07 11:22:42,690 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-07-07 11:22:42,690 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-07-07 11:22:42,690 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-07-07 11:22:42,690 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-07-07 11:22:42,690 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-07-07 11:22:42,691 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-07-07 11:22:42,691 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-07-07 11:22:42,691 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-07-07 11:22:42,691 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-07-07 11:22:42,691 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-07-07 11:22:42,691 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-07-07 11:22:42,691 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-07-07 11:22:42,692 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-07-07 11:22:42,692 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-07-07 11:22:42,692 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-07-07 11:22:42,692 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-07-07 11:22:42,692 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-07-07 11:22:42,692 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-07-07 11:22:42,692 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-07-07 11:22:42,693 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-07-07 11:22:42,693 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-07-07 11:22:42,693 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-07-07 11:22:42,693 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-07-07 11:22:42,693 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-07-07 11:22:42,693 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-07-07 11:22:42,693 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-07-07 11:22:42,694 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-07-07 11:22:42,694 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-07-07 11:22:42,694 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-07-07 11:22:42,694 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-07-07 11:22:42,694 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-07-07 11:22:42,694 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-07-07 11:22:42,694 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-07-07 11:22:42,695 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-07-07 11:22:42,695 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-07-07 11:22:42,695 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-07-07 11:22:42,695 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-07-07 11:22:42,695 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-07-07 11:22:42,695 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-07-07 11:22:42,695 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-07-07 11:22:42,695 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-07-07 11:22:42,696 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-07-07 11:22:42,696 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-07-07 11:22:42,696 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-07-07 11:22:42,696 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-07-07 11:22:42,696 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-07-07 11:22:42,696 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-07-07 11:22:42,697 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-07-07 11:22:42,697 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-07-07 11:22:42,697 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-07-07 11:22:42,697 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-07-07 11:22:42,697 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-07-07 11:22:42,697 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-07-07 11:22:42,697 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-07-07 11:22:42,697 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-07-07 11:22:42,698 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-07-07 11:22:42,698 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-07-07 11:22:42,698 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-07-07 11:22:42,698 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-07-07 11:22:42,698 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-07-07 11:22:42,698 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-07-07 11:22:42,699 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-07-07 11:22:42,699 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-07-07 11:22:42,699 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-07-07 11:22:42,699 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-07-07 11:22:42,699 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-07-07 11:22:42,699 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-07-07 11:22:42,699 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-07-07 11:22:42,700 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-07-07 11:22:42,700 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-07-07 11:22:42,700 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-07-07 11:22:42,700 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-07-07 11:22:42,700 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-07-07 11:22:42,700 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-07-07 11:22:42,700 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-07-07 11:22:42,700 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-07-07 11:22:42,701 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-07-07 11:22:42,701 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-07-07 11:22:42,701 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-07-07 11:22:42,701 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-07-07 11:22:42,701 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-07-07 11:22:42,701 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-07-07 11:22:42,702 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-07-07 11:22:42,702 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-07-07 11:22:42,702 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-07-07 11:22:42,702 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-07-07 11:22:42,702 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-07-07 11:22:42,702 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-07-07 11:22:42,702 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-07-07 11:22:42,702 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-07-07 11:22:42,703 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-07-07 11:22:42,703 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-07-07 11:22:42,703 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-07-07 11:22:42,710 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse3 (= ~a7~0 |old(~a7~0)|)) (.cse4 (= ~a17~0 |old(~a17~0)|)) (.cse5 (= ~a16~0 |old(~a16~0)|)) (.cse6 (= ~a8~0 |old(~a8~0)|)) (.cse7 (= ~a20~0 |old(~a20~0)|))) (let ((.cse0 (and .cse3 .cse4 .cse5 .cse6 (= 1 ~a21~0) .cse7)) (.cse1 (not (= 1 |old(~a21~0)|))) (.cse2 (and .cse3 .cse4 .cse5 .cse6 .cse7 (= ~a21~0 |old(~a21~0)|)))) (and (or (not (<= 15 |old(~a8~0)|)) .cse0 .cse1) (or (not (<= |old(~a7~0)| 0)) .cse0 .cse1) (or (not (<= |old(~a17~0)| 0)) .cse2) (or (not (<= |old(~a16~0)| 5)) .cse2)))) [2020-07-07 11:22:42,711 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-07-07 11:22:42,711 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-07-07 11:22:42,711 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-07-07 11:22:42,711 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-07-07 11:22:42,711 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-07-07 11:22:42,711 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-07-07 11:22:42,712 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-07-07 11:22:42,712 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-07-07 11:22:42,712 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-07-07 11:22:42,712 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-07-07 11:22:42,712 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-07-07 11:22:42,712 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-07-07 11:22:42,712 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-07-07 11:22:42,712 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-07-07 11:22:42,713 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-07-07 11:22:42,713 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-07-07 11:22:42,713 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-07-07 11:22:42,713 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-07-07 11:22:42,713 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-07-07 11:22:42,713 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-07-07 11:22:42,713 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-07-07 11:22:42,713 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-07-07 11:22:42,713 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-07-07 11:22:42,714 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-07-07 11:22:42,714 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-07-07 11:22:42,714 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-07-07 11:22:42,714 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-07-07 11:22:42,714 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-07-07 11:22:42,714 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-07-07 11:22:42,714 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-07-07 11:22:42,715 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-07-07 11:22:42,715 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-07-07 11:22:42,715 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-07-07 11:22:42,715 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-07-07 11:22:42,715 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-07-07 11:22:42,715 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-07-07 11:22:42,715 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-07-07 11:22:42,715 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-07-07 11:22:42,716 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-07-07 11:22:42,716 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-07-07 11:22:42,716 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-07-07 11:22:42,716 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-07-07 11:22:42,716 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-07-07 11:22:42,716 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-07-07 11:22:42,716 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-07-07 11:22:42,716 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-07-07 11:22:42,717 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-07-07 11:22:42,717 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-07-07 11:22:42,717 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-07-07 11:22:42,717 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-07-07 11:22:42,717 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-07-07 11:22:42,717 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-07-07 11:22:42,717 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-07-07 11:22:42,717 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-07-07 11:22:42,718 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-07-07 11:22:42,718 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-07-07 11:22:42,718 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-07-07 11:22:42,718 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-07 11:22:42,721 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a7~0 0) (<= ~a16~0 5) (<= 15 ~a8~0) (= 1 ~a21~0)) [2020-07-07 11:22:42,721 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-07 11:22:42,722 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-07 11:22:42,722 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (not (<= 15 |old(~a8~0)|)) (not (<= |old(~a7~0)| 0)) (and (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a16~0 |old(~a16~0)|) (= ~a8~0 |old(~a8~0)|) (= 1 ~a21~0) (= ~a20~0 |old(~a20~0)|)) (not (<= |old(~a16~0)| 5)) (not (= 1 |old(~a21~0)|))) [2020-07-07 11:22:42,722 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-07-07 11:22:42,722 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse0 (= 1 ~a21~0))) (or (and (<= ~a7~0 0) .cse0) (not (<= 15 |old(~a8~0)|)) (and (<= 15 ~a8~0) .cse0) (<= ~a17~0 0) (not (<= |old(~a7~0)| 0)) (<= ~a16~0 5) (not (<= |old(~a16~0)| 5)) (not (= 1 |old(~a21~0)|)))) [2020-07-07 11:22:42,722 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-07-07 11:22:42,723 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-07-07 11:22:42,723 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse0 (= 1 ~a21~0))) (or (and (<= ~a7~0 0) .cse0) (not (<= 15 |old(~a8~0)|)) (and (<= 15 ~a8~0) .cse0) (<= ~a17~0 0) (not (<= |old(~a7~0)| 0)) (<= ~a16~0 5) (not (<= |old(~a16~0)| 5)) (not (= 1 |old(~a21~0)|)))) [2020-07-07 11:22:42,723 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-07-07 11:22:42,751 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 11:22:42 BoogieIcfgContainer [2020-07-07 11:22:42,752 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 11:22:42,755 INFO L168 Benchmark]: Toolchain (without parser) took 15936.10 ms. Allocated memory was 135.3 MB in the beginning and 467.7 MB in the end (delta: 332.4 MB). Free memory was 97.9 MB in the beginning and 363.9 MB in the end (delta: -265.9 MB). Peak memory consumption was 353.4 MB. Max. memory is 7.1 GB. [2020-07-07 11:22:42,756 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 135.3 MB. Free memory was 118.4 MB in the beginning and 118.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-07 11:22:42,762 INFO L168 Benchmark]: CACSL2BoogieTranslator took 807.63 ms. Allocated memory was 135.3 MB in the beginning and 201.9 MB in the end (delta: 66.6 MB). Free memory was 97.7 MB in the beginning and 167.3 MB in the end (delta: -69.5 MB). Peak memory consumption was 34.5 MB. Max. memory is 7.1 GB. [2020-07-07 11:22:42,763 INFO L168 Benchmark]: Boogie Preprocessor took 157.15 ms. Allocated memory is still 201.9 MB. Free memory was 167.3 MB in the beginning and 162.8 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. [2020-07-07 11:22:42,764 INFO L168 Benchmark]: RCFGBuilder took 1218.60 ms. Allocated memory was 201.9 MB in the beginning and 229.1 MB in the end (delta: 27.3 MB). Free memory was 162.1 MB in the beginning and 177.5 MB in the end (delta: -15.4 MB). Peak memory consumption was 87.6 MB. Max. memory is 7.1 GB. [2020-07-07 11:22:42,765 INFO L168 Benchmark]: TraceAbstraction took 13746.45 ms. Allocated memory was 229.1 MB in the beginning and 467.7 MB in the end (delta: 238.6 MB). Free memory was 176.0 MB in the beginning and 363.9 MB in the end (delta: -187.9 MB). Peak memory consumption was 337.6 MB. Max. memory is 7.1 GB. [2020-07-07 11:22:42,778 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 135.3 MB. Free memory was 118.4 MB in the beginning and 118.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 807.63 ms. Allocated memory was 135.3 MB in the beginning and 201.9 MB in the end (delta: 66.6 MB). Free memory was 97.7 MB in the beginning and 167.3 MB in the end (delta: -69.5 MB). Peak memory consumption was 34.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 157.15 ms. Allocated memory is still 201.9 MB. Free memory was 167.3 MB in the beginning and 162.8 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1218.60 ms. Allocated memory was 201.9 MB in the beginning and 229.1 MB in the end (delta: 27.3 MB). Free memory was 162.1 MB in the beginning and 177.5 MB in the end (delta: -15.4 MB). Peak memory consumption was 87.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 13746.45 ms. Allocated memory was 229.1 MB in the beginning and 467.7 MB in the end (delta: 238.6 MB). Free memory was 176.0 MB in the beginning and 363.9 MB in the end (delta: -187.9 MB). Peak memory consumption was 337.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 545]: 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: (((((((a7 <= 0 && 1 == a21) || !(15 <= \old(a8))) || (15 <= a8 && 1 == a21)) || a17 <= 0) || !(\old(a7) <= 0)) || a16 <= 5) || !(\old(a16) <= 5)) || !(1 == \old(a21)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 12.5s, OverallIterations: 5, TraceHistogramMax: 3, AutomataDifference: 8.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 360 SDtfs, 2378 SDslu, 249 SDs, 0 SdLazy, 4815 SolverSat, 1207 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 687 GetRequests, 625 SyntacticMatches, 1 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 317 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1563occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 5 MinimizatonAttempts, 1157 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 39 PreInvPairs, 73 NumberOfFragments, 287 HoareAnnotationTreeSize, 39 FomulaSimplifications, 36583 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 7 FomulaSimplificationsInter, 1529 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 1449 NumberOfCodeBlocks, 1449 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 1441 ConstructedInterpolants, 0 QuantifiedInterpolants, 701952 SizeOfPredicates, 4 NumberOfNonLiveVariables, 1456 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 8 InterpolantComputations, 4 PerfectInterpolantSequences, 444/452 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...