/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/ldv-regression/test27-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 19:55:32,666 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 19:55:32,669 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 19:55:32,726 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 19:55:32,727 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 19:55:32,735 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 19:55:32,738 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 19:55:32,743 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 19:55:32,747 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 19:55:32,753 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 19:55:32,755 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 19:55:32,756 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 19:55:32,757 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 19:55:32,760 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 19:55:32,764 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 19:55:32,767 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 19:55:32,768 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 19:55:32,772 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 19:55:32,779 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 19:55:32,797 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 19:55:32,802 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 19:55:32,806 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 19:55:32,808 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 19:55:32,809 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 19:55:32,812 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 19:55:32,813 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 19:55:32,813 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 19:55:32,814 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 19:55:32,815 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 19:55:32,816 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2020-10-27 19:55:32,822 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 19:55:32,823 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 19:55:32,824 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 19:55:32,825 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-27 19:55:32,853 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 19:55:32,853 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 19:55:32,855 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 19:55:32,855 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 19:55:32,856 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 19:55:32,856 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 19:55:32,856 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 19:55:32,856 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 19:55:32,857 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 19:55:32,857 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 19:55:32,857 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 19:55:32,857 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 19:55:32,858 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 19:55:32,858 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 19:55:32,858 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 19:55:32,858 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 19:55:32,858 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 19:55:32,859 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 19:55:32,859 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 19:55:32,859 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 19:55:32,859 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 19:55:32,860 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 19:55:32,860 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 19:55:32,860 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 19:55:32,860 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 19:55:32,861 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 19:55:32,861 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 19:55:32,861 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 19:55:32,861 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 19:55:32,862 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 19:55:33,336 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 19:55:33,386 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 19:55:33,390 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 19:55:33,391 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 19:55:33,392 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 19:55:33,394 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test27-1.c [2020-10-27 19:55:33,485 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8b358b270/ab2b05731f6e4571b359a493b3649ffe/FLAG8566582fb [2020-10-27 19:55:34,097 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 19:55:34,098 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/test27-1.c [2020-10-27 19:55:34,106 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8b358b270/ab2b05731f6e4571b359a493b3649ffe/FLAG8566582fb [2020-10-27 19:55:34,457 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8b358b270/ab2b05731f6e4571b359a493b3649ffe [2020-10-27 19:55:34,461 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 19:55:34,468 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 19:55:34,470 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 19:55:34,470 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 19:55:34,475 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 19:55:34,476 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 07:55:34" (1/1) ... [2020-10-27 19:55:34,479 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39983443 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:55:34, skipping insertion in model container [2020-10-27 19:55:34,480 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 07:55:34" (1/1) ... [2020-10-27 19:55:34,489 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 19:55:34,506 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 19:55:34,700 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 19:55:34,710 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 19:55:34,738 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 19:55:34,762 INFO L208 MainTranslator]: Completed translation [2020-10-27 19:55:34,763 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:55:34 WrapperNode [2020-10-27 19:55:34,764 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 19:55:34,766 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 19:55:34,766 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 19:55:34,767 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 19:55:34,783 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:55:34" (1/1) ... [2020-10-27 19:55:34,785 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:55:34" (1/1) ... [2020-10-27 19:55:34,808 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:55:34" (1/1) ... [2020-10-27 19:55:34,808 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:55:34" (1/1) ... [2020-10-27 19:55:34,834 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:55:34" (1/1) ... [2020-10-27 19:55:34,845 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:55:34" (1/1) ... [2020-10-27 19:55:34,853 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:55:34" (1/1) ... [2020-10-27 19:55:34,857 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 19:55:34,862 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 19:55:34,862 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 19:55:34,862 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 19:55:34,864 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:55:34" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 19:55:34,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 19:55:34,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 19:55:34,962 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 19:55:34,962 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-27 19:55:34,962 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 19:55:34,962 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 19:55:34,963 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 19:55:34,963 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 19:55:34,963 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 19:55:34,963 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 19:55:34,964 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-27 19:55:34,964 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-27 19:55:34,964 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 19:55:34,964 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 19:55:34,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 19:55:34,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-27 19:55:34,965 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 19:55:34,965 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 19:55:34,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 19:55:34,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 19:55:35,656 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 19:55:35,656 INFO L298 CfgBuilder]: Removed 2 assume(true) statements. [2020-10-27 19:55:35,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 07:55:35 BoogieIcfgContainer [2020-10-27 19:55:35,658 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 19:55:35,663 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 19:55:35,663 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 19:55:35,667 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 19:55:35,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 07:55:34" (1/3) ... [2020-10-27 19:55:35,669 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e6721d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 07:55:35, skipping insertion in model container [2020-10-27 19:55:35,670 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:55:34" (2/3) ... [2020-10-27 19:55:35,670 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e6721d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 07:55:35, skipping insertion in model container [2020-10-27 19:55:35,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 07:55:35" (3/3) ... [2020-10-27 19:55:35,673 INFO L111 eAbstractionObserver]: Analyzing ICFG test27-1.c [2020-10-27 19:55:35,689 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 19:55:35,696 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 19:55:35,712 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 19:55:35,762 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 19:55:35,762 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 19:55:35,762 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 19:55:35,762 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 19:55:35,763 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 19:55:35,763 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 19:55:35,763 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 19:55:35,763 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 19:55:35,787 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2020-10-27 19:55:35,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-27 19:55:35,794 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:55:35,796 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 19:55:35,796 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:55:35,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:55:35,807 INFO L82 PathProgramCache]: Analyzing trace with hash 597245021, now seen corresponding path program 1 times [2020-10-27 19:55:35,818 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:55:35,819 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [592638036] [2020-10-27 19:55:35,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:55:35,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:55:36,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:55:36,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:55:36,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:55:36,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-27 19:55:36,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 19:55:36,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 545 [2020-10-27 19:55:36,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:55:36,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:55:36,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 19:55:36,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:55:36,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 19:55:36,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 19:55:36,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:55:36,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:55:36,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:55:36,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:55:36,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:55:36,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 19:55:36,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:55:36,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:55:36,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:55:36,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:55:36,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 19:55:36,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 19:55:36,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:55:36,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:55:36,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:55:36,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:55:36,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:55:36,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 19:55:36,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:55:36,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:55:36,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 19:55:36,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:55:36,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:55:36,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 19:55:36,791 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [592638036] [2020-10-27 19:55:36,794 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 19:55:36,794 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-27 19:55:36,795 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168069868] [2020-10-27 19:55:36,801 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-27 19:55:36,801 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 19:55:36,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-27 19:55:36,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-27 19:55:36,821 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 3 states. [2020-10-27 19:55:37,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 19:55:37,016 INFO L93 Difference]: Finished difference Result 47 states and 58 transitions. [2020-10-27 19:55:37,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-27 19:55:37,019 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2020-10-27 19:55:37,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 19:55:37,028 INFO L225 Difference]: With dead ends: 47 [2020-10-27 19:55:37,028 INFO L226 Difference]: Without dead ends: 21 [2020-10-27 19:55:37,032 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-27 19:55:37,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-10-27 19:55:37,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-10-27 19:55:37,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-10-27 19:55:37,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2020-10-27 19:55:37,077 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 18 [2020-10-27 19:55:37,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 19:55:37,078 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2020-10-27 19:55:37,078 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-27 19:55:37,078 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2020-10-27 19:55:37,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-27 19:55:37,079 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:55:37,079 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 19:55:37,080 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 19:55:37,080 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:55:37,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:55:37,081 INFO L82 PathProgramCache]: Analyzing trace with hash -651701326, now seen corresponding path program 1 times [2020-10-27 19:55:37,081 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:55:37,082 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2027598046] [2020-10-27 19:55:37,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:55:37,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:55:37,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:55:37,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:55:37,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:55:37,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-27 19:55:37,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 19:55:37,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 764 [2020-10-27 19:55:37,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:55:37,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 19:55:37,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-27 19:55:37,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 19:55:37,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:55:38,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 19:55:38,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:55:38,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:55:38,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:55:38,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:55:38,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:55:38,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 19:55:38,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:55:38,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:55:38,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:55:38,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:55:38,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:55:38,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-27 19:55:38,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:55:38,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:55:38,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:55:38,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:55:38,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:55:38,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 19:55:38,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:55:38,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:55:38,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 19:55:38,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:55:38,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:55:38,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 19:55:38,132 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2027598046] [2020-10-27 19:55:38,132 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 19:55:38,132 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-27 19:55:38,132 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519328716] [2020-10-27 19:55:38,134 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 19:55:38,134 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 19:55:38,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 19:55:38,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-27 19:55:38,136 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 6 states. [2020-10-27 19:55:38,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 19:55:38,336 INFO L93 Difference]: Finished difference Result 32 states and 33 transitions. [2020-10-27 19:55:38,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-27 19:55:38,337 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2020-10-27 19:55:38,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 19:55:38,338 INFO L225 Difference]: With dead ends: 32 [2020-10-27 19:55:38,338 INFO L226 Difference]: Without dead ends: 23 [2020-10-27 19:55:38,339 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-27 19:55:38,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-10-27 19:55:38,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2020-10-27 19:55:38,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-10-27 19:55:38,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2020-10-27 19:55:38,347 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 19 [2020-10-27 19:55:38,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 19:55:38,348 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2020-10-27 19:55:38,348 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 19:55:38,348 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2020-10-27 19:55:38,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-27 19:55:38,349 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:55:38,349 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 19:55:38,350 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 19:55:38,350 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:55:38,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:55:38,351 INFO L82 PathProgramCache]: Analyzing trace with hash 1860323927, now seen corresponding path program 1 times [2020-10-27 19:55:38,351 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:55:38,351 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1119296451] [2020-10-27 19:55:38,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:55:38,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:55:38,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:55:38,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:55:38,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:55:39,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:55:39,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-27 19:55:39,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 19:55:39,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1216 [2020-10-27 19:55:39,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:55:39,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 19:55:39,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-27 19:55:39,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 19:55:39,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 19:55:39,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 19:55:39,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:55:39,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:55:39,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:55:39,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:55:39,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:55:39,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 19:55:39,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:55:39,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:55:39,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:55:39,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:55:39,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 19:55:39,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-27 19:55:39,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:55:39,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:55:39,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:55:39,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:55:39,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:55:39,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 19:55:39,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:55:39,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:55:39,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 19:55:39,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:55:39,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 19:55:39,771 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 19:55:39,772 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1119296451] [2020-10-27 19:55:39,772 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 19:55:39,773 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-27 19:55:39,773 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861311855] [2020-10-27 19:55:39,775 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 19:55:39,775 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 19:55:39,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 19:55:39,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-27 19:55:39,776 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand 7 states. [2020-10-27 19:55:40,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 19:55:40,030 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2020-10-27 19:55:40,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-27 19:55:40,031 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2020-10-27 19:55:40,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 19:55:40,032 INFO L225 Difference]: With dead ends: 34 [2020-10-27 19:55:40,032 INFO L226 Difference]: Without dead ends: 25 [2020-10-27 19:55:40,034 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-27 19:55:40,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-10-27 19:55:40,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2020-10-27 19:55:40,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-10-27 19:55:40,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2020-10-27 19:55:40,049 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 21 [2020-10-27 19:55:40,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 19:55:40,050 INFO L481 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2020-10-27 19:55:40,050 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 19:55:40,050 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2020-10-27 19:55:40,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-27 19:55:40,052 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:55:40,052 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 19:55:40,053 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 19:55:40,053 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:55:40,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:55:40,053 INFO L82 PathProgramCache]: Analyzing trace with hash 2144971708, now seen corresponding path program 2 times [2020-10-27 19:55:40,054 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:55:40,054 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [93892439] [2020-10-27 19:55:40,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:55:40,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:55:40,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:55:40,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:55:40,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:55:41,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:55:41,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 19:55:41,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 19:55:41,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1752 [2020-10-27 19:55:41,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:55:41,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 19:55:41,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-27 19:55:41,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 19:55:41,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:55:41,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 19:55:41,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:55:41,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:55:41,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:55:41,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:55:41,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:55:41,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 19:55:41,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:55:41,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:55:41,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:55:41,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:55:41,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:55:41,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-27 19:55:41,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:55:42,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:55:42,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:55:42,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:55:42,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:55:42,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 19:55:42,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:55:42,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:55:42,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 19:55:42,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:55:42,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:55:42,007 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 19:55:42,007 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [93892439] [2020-10-27 19:55:42,007 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 19:55:42,007 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-27 19:55:42,008 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179164731] [2020-10-27 19:55:42,008 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 19:55:42,008 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 19:55:42,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 19:55:42,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-27 19:55:42,010 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand 8 states. [2020-10-27 19:55:42,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 19:55:42,253 INFO L93 Difference]: Finished difference Result 36 states and 37 transitions. [2020-10-27 19:55:42,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-27 19:55:42,254 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 23 [2020-10-27 19:55:42,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 19:55:42,255 INFO L225 Difference]: With dead ends: 36 [2020-10-27 19:55:42,255 INFO L226 Difference]: Without dead ends: 27 [2020-10-27 19:55:42,255 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-10-27 19:55:42,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-10-27 19:55:42,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-10-27 19:55:42,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-10-27 19:55:42,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2020-10-27 19:55:42,262 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 23 [2020-10-27 19:55:42,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 19:55:42,262 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2020-10-27 19:55:42,262 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 19:55:42,262 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2020-10-27 19:55:42,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-27 19:55:42,263 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:55:42,263 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 19:55:42,264 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 19:55:42,264 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:55:42,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:55:42,264 INFO L82 PathProgramCache]: Analyzing trace with hash 813582305, now seen corresponding path program 3 times [2020-10-27 19:55:42,265 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:55:42,265 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1740221622] [2020-10-27 19:55:42,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:55:42,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:55:42,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:55:42,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:55:42,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:55:44,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:55:44,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-27 19:55:44,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 19:55:44,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2656 [2020-10-27 19:55:44,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:55:44,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 19:55:44,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-27 19:55:44,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 19:55:44,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:55:45,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 19:55:45,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:55:45,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:55:45,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:55:45,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:55:45,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:55:45,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 19:55:45,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:55:45,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:55:45,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:55:45,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:55:45,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:55:45,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-27 19:55:45,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:55:45,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:55:45,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:55:45,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:55:45,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:55:45,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 19:55:45,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:55:45,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:55:45,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 19:55:45,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:55:45,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 19:55:45,233 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 19:55:45,234 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1740221622] [2020-10-27 19:55:45,241 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 19:55:45,241 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-27 19:55:45,241 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091119369] [2020-10-27 19:55:45,242 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-27 19:55:45,243 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 19:55:45,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-27 19:55:45,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-27 19:55:45,246 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand 9 states. [2020-10-27 19:55:45,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 19:55:45,673 INFO L93 Difference]: Finished difference Result 38 states and 39 transitions. [2020-10-27 19:55:45,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-27 19:55:45,674 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-10-27 19:55:45,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 19:55:45,679 INFO L225 Difference]: With dead ends: 38 [2020-10-27 19:55:45,679 INFO L226 Difference]: Without dead ends: 29 [2020-10-27 19:55:45,680 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-10-27 19:55:45,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-10-27 19:55:45,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-10-27 19:55:45,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-10-27 19:55:45,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2020-10-27 19:55:45,689 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 25 [2020-10-27 19:55:45,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 19:55:45,689 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2020-10-27 19:55:45,689 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-27 19:55:45,689 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2020-10-27 19:55:45,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-27 19:55:45,690 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:55:45,691 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 19:55:45,691 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 19:55:45,691 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:55:45,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:55:45,691 INFO L82 PathProgramCache]: Analyzing trace with hash 1248620230, now seen corresponding path program 4 times [2020-10-27 19:55:45,692 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:55:45,692 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [360249897] [2020-10-27 19:55:45,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:55:45,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:55:45,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:55:45,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:55:45,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:55:48,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:55:48,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-27 19:55:48,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 19:55:48,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3116 [2020-10-27 19:55:48,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:55:48,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 19:55:48,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-27 19:55:48,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-27 19:55:48,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:55:49,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 19:55:49,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:55:49,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:55:49,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:55:49,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:55:49,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:55:49,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 19:55:49,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:55:49,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:55:49,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:55:49,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:55:49,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:55:49,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-27 19:55:49,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:55:49,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:55:49,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:55:49,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:55:49,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:55:49,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 19:55:49,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:55:49,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:55:49,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 19:55:49,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:55:49,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:55:49,065 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 19:55:49,065 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [360249897] [2020-10-27 19:55:49,067 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 19:55:49,067 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-27 19:55:49,067 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350567133] [2020-10-27 19:55:49,067 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 19:55:49,067 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 19:55:49,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 19:55:49,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-10-27 19:55:49,068 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand 10 states. [2020-10-27 19:55:49,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 19:55:49,416 INFO L93 Difference]: Finished difference Result 40 states and 41 transitions. [2020-10-27 19:55:49,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-27 19:55:49,417 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 27 [2020-10-27 19:55:49,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 19:55:49,419 INFO L225 Difference]: With dead ends: 40 [2020-10-27 19:55:49,419 INFO L226 Difference]: Without dead ends: 31 [2020-10-27 19:55:49,419 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2020-10-27 19:55:49,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-10-27 19:55:49,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-10-27 19:55:49,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-27 19:55:49,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions. [2020-10-27 19:55:49,430 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 27 [2020-10-27 19:55:49,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 19:55:49,430 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions. [2020-10-27 19:55:49,430 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-27 19:55:49,430 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2020-10-27 19:55:49,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-27 19:55:49,431 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:55:49,432 INFO L422 BasicCegarLoop]: trace histogram [6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 19:55:49,432 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 19:55:49,432 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:55:49,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:55:49,434 INFO L82 PathProgramCache]: Analyzing trace with hash -1586728853, now seen corresponding path program 5 times [2020-10-27 19:55:49,435 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:55:49,435 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [351760209] [2020-10-27 19:55:49,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:55:49,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:55:49,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:55:49,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:55:49,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:55:52,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:55:52,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-27 19:55:52,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 19:55:52,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3107 [2020-10-27 19:55:52,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:55:52,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 19:55:52,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-27 19:55:52,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 19:55:52,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 19:55:52,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 19:55:52,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:55:52,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:55:52,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:55:52,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:55:52,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:55:52,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 19:55:52,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:55:52,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:55:52,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:55:52,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:55:52,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:55:52,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-27 19:55:52,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:55:52,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:55:52,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:55:52,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:55:52,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:55:52,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 19:55:52,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:55:52,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:55:52,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 19:55:52,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:55:52,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:55:52,895 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 19:55:52,896 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [351760209] [2020-10-27 19:55:52,896 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 19:55:52,896 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-27 19:55:52,896 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516853014] [2020-10-27 19:55:52,897 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 19:55:52,898 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 19:55:52,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 19:55:52,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-10-27 19:55:52,899 INFO L87 Difference]: Start difference. First operand 31 states and 32 transitions. Second operand 11 states. [2020-10-27 19:55:53,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 19:55:53,334 INFO L93 Difference]: Finished difference Result 42 states and 43 transitions. [2020-10-27 19:55:53,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-27 19:55:53,335 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 29 [2020-10-27 19:55:53,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 19:55:53,336 INFO L225 Difference]: With dead ends: 42 [2020-10-27 19:55:53,336 INFO L226 Difference]: Without dead ends: 33 [2020-10-27 19:55:53,336 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2020-10-27 19:55:53,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-10-27 19:55:53,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-10-27 19:55:53,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-27 19:55:53,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2020-10-27 19:55:53,344 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 29 [2020-10-27 19:55:53,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 19:55:53,344 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2020-10-27 19:55:53,344 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 19:55:53,344 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2020-10-27 19:55:53,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-27 19:55:53,349 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:55:53,349 INFO L422 BasicCegarLoop]: trace histogram [7, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 19:55:53,349 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 19:55:53,349 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:55:53,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:55:53,350 INFO L82 PathProgramCache]: Analyzing trace with hash 947035344, now seen corresponding path program 6 times [2020-10-27 19:55:53,351 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:55:53,352 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1926998885] [2020-10-27 19:55:53,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:55:53,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:55:53,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:55:53,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:55:53,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:55:56,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:55:56,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 19:55:56,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 19:55:56,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3414 [2020-10-27 19:55:56,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:55:56,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 19:55:56,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-27 19:55:56,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-27 19:55:56,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:55:57,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 19:55:57,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:55:57,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:55:57,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:55:57,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:55:57,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:55:57,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 19:55:57,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:55:57,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:55:57,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:55:57,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:55:57,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:55:57,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-27 19:55:57,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:55:57,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:55:57,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:55:57,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:55:57,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:55:57,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 19:55:57,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:55:57,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:55:57,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 19:55:57,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:55:57,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 19:55:57,086 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 19:55:57,087 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1926998885] [2020-10-27 19:55:57,087 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 19:55:57,087 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-27 19:55:57,087 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888179087] [2020-10-27 19:55:57,088 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-27 19:55:57,088 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 19:55:57,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-27 19:55:57,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-27 19:55:57,089 INFO L87 Difference]: Start difference. First operand 33 states and 34 transitions. Second operand 12 states. [2020-10-27 19:55:57,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 19:55:57,479 INFO L93 Difference]: Finished difference Result 44 states and 45 transitions. [2020-10-27 19:55:57,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-27 19:55:57,480 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 31 [2020-10-27 19:55:57,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 19:55:57,481 INFO L225 Difference]: With dead ends: 44 [2020-10-27 19:55:57,481 INFO L226 Difference]: Without dead ends: 35 [2020-10-27 19:55:57,482 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=112, Invalid=230, Unknown=0, NotChecked=0, Total=342 [2020-10-27 19:55:57,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-10-27 19:55:57,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-10-27 19:55:57,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-10-27 19:55:57,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 36 transitions. [2020-10-27 19:55:57,492 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 36 transitions. Word has length 31 [2020-10-27 19:55:57,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 19:55:57,492 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 36 transitions. [2020-10-27 19:55:57,492 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-27 19:55:57,493 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 36 transitions. [2020-10-27 19:55:57,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-10-27 19:55:57,494 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:55:57,494 INFO L422 BasicCegarLoop]: trace histogram [8, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 19:55:57,494 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-27 19:55:57,494 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:55:57,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:55:57,495 INFO L82 PathProgramCache]: Analyzing trace with hash 647971829, now seen corresponding path program 7 times [2020-10-27 19:55:57,495 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:55:57,495 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [648957279] [2020-10-27 19:55:57,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:55:57,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:55:57,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:55:57,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:55:58,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:56:01,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:56:01,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-10-27 19:56:01,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 19:56:01,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3508 [2020-10-27 19:56:01,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:56:01,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 19:56:01,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-27 19:56:01,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-27 19:56:01,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:56:01,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 19:56:01,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:56:01,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:56:01,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:56:01,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:56:01,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:56:01,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 19:56:01,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:56:01,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:56:01,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:56:01,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:56:01,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:56:01,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-27 19:56:01,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:56:01,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:56:01,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:56:01,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:56:01,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:56:01,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 19:56:01,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:56:01,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:56:01,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 19:56:01,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:56:01,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:56:01,384 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 19:56:01,384 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [648957279] [2020-10-27 19:56:01,385 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 19:56:01,385 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-27 19:56:01,386 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715183709] [2020-10-27 19:56:01,386 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-27 19:56:01,391 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 19:56:01,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-27 19:56:01,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2020-10-27 19:56:01,393 INFO L87 Difference]: Start difference. First operand 35 states and 36 transitions. Second operand 13 states. [2020-10-27 19:56:01,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 19:56:01,900 INFO L93 Difference]: Finished difference Result 46 states and 47 transitions. [2020-10-27 19:56:01,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-27 19:56:01,900 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 33 [2020-10-27 19:56:01,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 19:56:01,901 INFO L225 Difference]: With dead ends: 46 [2020-10-27 19:56:01,901 INFO L226 Difference]: Without dead ends: 37 [2020-10-27 19:56:01,902 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=139, Invalid=281, Unknown=0, NotChecked=0, Total=420 [2020-10-27 19:56:01,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-10-27 19:56:01,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-10-27 19:56:01,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-10-27 19:56:01,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 38 transitions. [2020-10-27 19:56:01,912 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 38 transitions. Word has length 33 [2020-10-27 19:56:01,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 19:56:01,912 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 38 transitions. [2020-10-27 19:56:01,912 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-27 19:56:01,912 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 38 transitions. [2020-10-27 19:56:01,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-10-27 19:56:01,918 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:56:01,918 INFO L422 BasicCegarLoop]: trace histogram [9, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 19:56:01,918 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-27 19:56:01,918 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:56:01,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:56:01,919 INFO L82 PathProgramCache]: Analyzing trace with hash 1010742746, now seen corresponding path program 8 times [2020-10-27 19:56:01,919 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:56:01,919 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [45189761] [2020-10-27 19:56:01,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:56:01,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:56:01,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:56:01,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:56:02,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:56:05,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:56:05,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-27 19:56:05,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 19:56:05,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3976 [2020-10-27 19:56:05,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:56:05,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-27 19:56:05,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-27 19:56:05,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-27 19:56:05,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:56:06,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 19:56:06,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:56:06,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:56:06,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:56:06,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:56:06,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:56:06,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 19:56:06,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:56:06,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:56:06,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:56:06,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:56:06,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:56:06,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-27 19:56:06,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:56:06,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:56:06,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:56:06,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:56:06,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:56:06,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 19:56:06,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:56:06,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:56:06,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 19:56:06,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:56:06,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:56:06,176 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 19:56:06,177 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [45189761] [2020-10-27 19:56:06,178 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 19:56:06,178 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-27 19:56:06,178 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269562839] [2020-10-27 19:56:06,180 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-27 19:56:06,180 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 19:56:06,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-27 19:56:06,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2020-10-27 19:56:06,181 INFO L87 Difference]: Start difference. First operand 37 states and 38 transitions. Second operand 14 states. [2020-10-27 19:56:06,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 19:56:06,572 INFO L93 Difference]: Finished difference Result 48 states and 49 transitions. [2020-10-27 19:56:06,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-27 19:56:06,573 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 35 [2020-10-27 19:56:06,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 19:56:06,576 INFO L225 Difference]: With dead ends: 48 [2020-10-27 19:56:06,576 INFO L226 Difference]: Without dead ends: 39 [2020-10-27 19:56:06,577 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=169, Invalid=337, Unknown=0, NotChecked=0, Total=506 [2020-10-27 19:56:06,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-10-27 19:56:06,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-10-27 19:56:06,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-10-27 19:56:06,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 40 transitions. [2020-10-27 19:56:06,586 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 40 transitions. Word has length 35 [2020-10-27 19:56:06,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 19:56:06,587 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 40 transitions. [2020-10-27 19:56:06,587 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-27 19:56:06,587 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 40 transitions. [2020-10-27 19:56:06,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-10-27 19:56:06,588 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:56:06,588 INFO L422 BasicCegarLoop]: trace histogram [10, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 19:56:06,589 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-27 19:56:06,589 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:56:06,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:56:06,589 INFO L82 PathProgramCache]: Analyzing trace with hash 1741243007, now seen corresponding path program 9 times [2020-10-27 19:56:06,590 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:56:06,590 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [718812714] [2020-10-27 19:56:06,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:56:06,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:56:06,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:56:06,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:56:06,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:56:11,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:56:11,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-27 19:56:11,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 19:56:11,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4736 [2020-10-27 19:56:11,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:56:11,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 19:56:11,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-27 19:56:11,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-27 19:56:11,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:56:11,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 19:56:11,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:56:11,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:56:11,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:56:11,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:56:11,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:56:11,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 19:56:11,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:56:11,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:56:11,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:56:11,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:56:11,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:56:11,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-27 19:56:11,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:56:11,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:56:11,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:56:11,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:56:11,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:56:11,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 19:56:11,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:56:11,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:56:11,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 19:56:11,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:56:11,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:56:11,638 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 19:56:11,638 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [718812714] [2020-10-27 19:56:11,638 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 19:56:11,639 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-27 19:56:11,639 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005529000] [2020-10-27 19:56:11,639 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-27 19:56:11,639 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 19:56:11,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-27 19:56:11,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-10-27 19:56:11,641 INFO L87 Difference]: Start difference. First operand 39 states and 40 transitions. Second operand 15 states. [2020-10-27 19:56:12,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 19:56:12,143 INFO L93 Difference]: Finished difference Result 50 states and 51 transitions. [2020-10-27 19:56:12,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-27 19:56:12,144 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 37 [2020-10-27 19:56:12,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 19:56:12,145 INFO L225 Difference]: With dead ends: 50 [2020-10-27 19:56:12,145 INFO L226 Difference]: Without dead ends: 41 [2020-10-27 19:56:12,146 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=202, Invalid=398, Unknown=0, NotChecked=0, Total=600 [2020-10-27 19:56:12,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-10-27 19:56:12,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2020-10-27 19:56:12,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-10-27 19:56:12,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 42 transitions. [2020-10-27 19:56:12,159 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 42 transitions. Word has length 37 [2020-10-27 19:56:12,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 19:56:12,160 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 42 transitions. [2020-10-27 19:56:12,160 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-27 19:56:12,160 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 42 transitions. [2020-10-27 19:56:12,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-10-27 19:56:12,161 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:56:12,161 INFO L422 BasicCegarLoop]: trace histogram [11, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 19:56:12,161 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-27 19:56:12,161 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:56:12,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:56:12,163 INFO L82 PathProgramCache]: Analyzing trace with hash -622642716, now seen corresponding path program 10 times [2020-10-27 19:56:12,163 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:56:12,164 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1177903066] [2020-10-27 19:56:12,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:56:12,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:56:12,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:56:12,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:56:12,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:56:14,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:56:14,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-27 19:56:14,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 19:56:14,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1863 [2020-10-27 19:56:14,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:56:14,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 19:56:14,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 19:56:14,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-27 19:56:14,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:56:14,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 19:56:14,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:56:14,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:56:14,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:56:14,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:56:14,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:56:14,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 19:56:14,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:56:14,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:56:14,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:56:14,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:56:14,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:56:14,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-27 19:56:14,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:56:14,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:56:14,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:56:14,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:56:14,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:56:14,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 19:56:14,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:56:14,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 19:56:14,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:56:14,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 19:56:14,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:56:14,497 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 9 proven. 20 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2020-10-27 19:56:14,498 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1177903066] [2020-10-27 19:56:14,498 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 19:56:14,498 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-27 19:56:14,499 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058575662] [2020-10-27 19:56:14,499 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 19:56:14,499 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 19:56:14,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 19:56:14,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2020-10-27 19:56:14,500 INFO L87 Difference]: Start difference. First operand 41 states and 42 transitions. Second operand 11 states. [2020-10-27 19:56:15,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 19:56:15,354 INFO L93 Difference]: Finished difference Result 41 states and 42 transitions. [2020-10-27 19:56:15,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-27 19:56:15,357 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 39 [2020-10-27 19:56:15,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 19:56:15,357 INFO L225 Difference]: With dead ends: 41 [2020-10-27 19:56:15,358 INFO L226 Difference]: Without dead ends: 0 [2020-10-27 19:56:15,358 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2020-10-27 19:56:15,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-27 19:56:15,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-27 19:56:15,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-27 19:56:15,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-27 19:56:15,361 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 39 [2020-10-27 19:56:15,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 19:56:15,362 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-27 19:56:15,362 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 19:56:15,362 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-27 19:56:15,362 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-27 19:56:15,363 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-27 19:56:15,365 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-27 19:56:15,642 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2020-10-27 19:56:15,642 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 3) the Hoare annotation is: true [2020-10-27 19:56:15,643 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2020-10-27 19:56:15,643 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-27 19:56:15,643 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-27 19:56:15,643 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.base| |old(#t~string5.base)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |#t~string4.base| |old(#t~string4.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-10-27 19:56:15,643 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-27 19:56:15,643 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-27 19:56:15,644 INFO L277 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-27 19:56:15,644 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-27 19:56:15,644 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-27 19:56:15,644 INFO L274 CegarLoopResult]: For program point L29-2(lines 29 34) no Hoare annotation was computed. [2020-10-27 19:56:15,644 INFO L270 CegarLoopResult]: At program point L29-3(lines 29 34) the Hoare annotation is: (and (= |main_~#dummies~0.offset| 0) (not (= |main_~#dummy~0.base| |main_~#a~0.base|)) (not (= |main_~#dummy~0.base| |main_~#cont~0.base|)) (not (= |main_~#dummies~0.base| |main_~#a~0.base|)) (not (= |main_~#cont~0.base| |main_~#a~0.base|)) (not (= |main_~#dummies~0.base| |main_~#dummy~0.base|)) (not (= |main_~#dummies~0.base| |main_~#cont~0.base|))) [2020-10-27 19:56:15,644 INFO L274 CegarLoopResult]: For program point L29-4(lines 22 56) no Hoare annotation was computed. [2020-10-27 19:56:15,644 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 21 56) no Hoare annotation was computed. [2020-10-27 19:56:15,645 INFO L274 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-10-27 19:56:15,645 INFO L274 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-10-27 19:56:15,645 INFO L274 CegarLoopResult]: For program point L46-1(lines 46 48) no Hoare annotation was computed. [2020-10-27 19:56:15,645 INFO L274 CegarLoopResult]: For program point mainFINAL(lines 21 56) no Hoare annotation was computed. [2020-10-27 19:56:15,645 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 21 56) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2020-10-27 19:56:15,646 INFO L270 CegarLoopResult]: At program point L47(lines 22 56) the Hoare annotation is: false [2020-10-27 19:56:15,646 INFO L274 CegarLoopResult]: For program point L43-1(lines 43 45) no Hoare annotation was computed. [2020-10-27 19:56:15,646 INFO L274 CegarLoopResult]: For program point L41(lines 41 49) no Hoare annotation was computed. [2020-10-27 19:56:15,646 INFO L270 CegarLoopResult]: At program point L43-3(lines 43 45) the Hoare annotation is: (let ((.cse4 (select (select |#memory_$Pointer$.offset| |main_~#cont~0.base|) |main_~#cont~0.offset|)) (.cse5 (select (select |#memory_int| main_~pa~0.base) main_~pa~0.offset))) (and (= (let ((.cse2 (select (select |#memory_$Pointer$.base| |main_~#cont~0.base|) |main_~#cont~0.offset|)) (.cse3 (+ .cse4 (* .cse5 4)))) (let ((.cse0 (select (select |#memory_$Pointer$.base| .cse2) .cse3)) (.cse1 (select (select |#memory_$Pointer$.offset| .cse2) .cse3))) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| .cse0) .cse1)) (+ (select (select |#memory_$Pointer$.offset| .cse0) .cse1) 4)))) .cse5) (= |main_~#dummies~0.offset| 0) (not (= |main_~#dummy~0.base| |main_~#a~0.base|)) (not (= |main_~#dummy~0.base| |main_~#cont~0.base|)) (not (= |main_~#dummies~0.base| |main_~#a~0.base|)) (not (= |main_~#cont~0.base| |main_~#a~0.base|)) (not (= |main_~#dummies~0.base| |main_~#dummy~0.base|)) (= .cse4 4) (<= main_~i~0 .cse5) (not (= |main_~#dummies~0.base| |main_~#cont~0.base|)))) [2020-10-27 19:56:15,647 INFO L270 CegarLoopResult]: At program point L43-4(lines 43 45) the Hoare annotation is: (let ((.cse10 (select (select |#memory_$Pointer$.base| |main_~#cont~0.base|) |main_~#cont~0.offset|))) (let ((.cse6 (select (select |#memory_int| main_~pa~0.base) main_~pa~0.offset)) (.cse2 (select |#memory_$Pointer$.offset| .cse10)) (.cse4 (select |#memory_$Pointer$.base| .cse10)) (.cse5 (select (select |#memory_$Pointer$.offset| |main_~#cont~0.base|) |main_~#cont~0.offset|))) (and (= (let ((.cse3 (+ .cse5 (* .cse6 4)))) (let ((.cse0 (select .cse4 .cse3)) (.cse1 (select .cse2 .cse3))) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| .cse0) .cse1)) (+ (select (select |#memory_$Pointer$.offset| .cse0) .cse1) 4)))) .cse6) (= |main_~#dummies~0.offset| 0) (not (= |main_~#dummy~0.base| |main_~#a~0.base|)) (not (= |main_~#dummy~0.base| |main_~#cont~0.base|)) (not (= |main_~#dummies~0.base| |main_~#a~0.base|)) (not (= |main_~#cont~0.base| |main_~#a~0.base|)) (not (= |main_~#dummies~0.base| |main_~#dummy~0.base|)) (= .cse5 4) (<= main_~i~0 .cse6) (= (let ((.cse9 (+ .cse5 (* main_~i~0 4)))) (let ((.cse7 (select .cse4 .cse9)) (.cse8 (select .cse2 .cse9))) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| .cse7) .cse8)) (+ (select (select |#memory_$Pointer$.offset| .cse7) .cse8) 4)))) main_~i~0) (not (= |main_~#dummies~0.base| |main_~#cont~0.base|))))) [2020-10-27 19:56:15,647 INFO L274 CegarLoopResult]: For program point L35(lines 35 50) no Hoare annotation was computed. [2020-10-27 19:56:15,647 INFO L277 CegarLoopResult]: At program point checkENTRY(lines 16 19) the Hoare annotation is: true [2020-10-27 19:56:15,647 INFO L274 CegarLoopResult]: For program point checkFINAL(lines 16 19) no Hoare annotation was computed. [2020-10-27 19:56:15,647 INFO L274 CegarLoopResult]: For program point checkEXIT(lines 16 19) no Hoare annotation was computed. [2020-10-27 19:56:15,660 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 19:56:15,661 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 19:56:15,662 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 19:56:15,662 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-27 19:56:15,663 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-27 19:56:15,663 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 19:56:15,663 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-27 19:56:15,663 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-27 19:56:15,664 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 19:56:15,664 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 19:56:15,664 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-27 19:56:15,665 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-27 19:56:15,665 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 19:56:15,665 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-27 19:56:15,666 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-27 19:56:15,668 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 19:56:15,669 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 19:56:15,669 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 19:56:15,669 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 19:56:15,669 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 19:56:15,670 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 19:56:15,670 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 19:56:15,670 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 19:56:15,671 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 19:56:15,671 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 19:56:15,671 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 19:56:15,672 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 19:56:15,672 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 19:56:15,672 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 19:56:15,672 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 19:56:15,673 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 19:56:15,673 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 19:56:15,673 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 19:56:15,674 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 19:56:15,674 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 19:56:15,675 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 19:56:15,675 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 19:56:15,682 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 19:56:15,682 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 19:56:15,683 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 19:56:15,684 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-27 19:56:15,685 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-27 19:56:15,685 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 19:56:15,686 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-27 19:56:15,686 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-27 19:56:15,686 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 19:56:15,686 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 19:56:15,687 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-27 19:56:15,687 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-27 19:56:15,687 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 19:56:15,688 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-27 19:56:15,692 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-27 19:56:15,692 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 19:56:15,693 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 19:56:15,693 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 19:56:15,693 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 19:56:15,693 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 19:56:15,694 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 19:56:15,694 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 19:56:15,694 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 19:56:15,694 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 19:56:15,695 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 19:56:15,695 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 19:56:15,695 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 19:56:15,695 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 19:56:15,695 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 19:56:15,696 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 19:56:15,696 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 19:56:15,697 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 19:56:15,697 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 19:56:15,697 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 19:56:15,698 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 19:56:15,698 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 19:56:15,699 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 19:56:15,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 07:56:15 BoogieIcfgContainer [2020-10-27 19:56:15,715 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 19:56:15,719 INFO L168 Benchmark]: Toolchain (without parser) took 41253.57 ms. Allocated memory was 152.0 MB in the beginning and 483.4 MB in the end (delta: 331.4 MB). Free memory was 127.8 MB in the beginning and 249.5 MB in the end (delta: -121.7 MB). Peak memory consumption was 210.8 MB. Max. memory is 8.0 GB. [2020-10-27 19:56:15,726 INFO L168 Benchmark]: CDTParser took 0.69 ms. Allocated memory is still 152.0 MB. Free memory was 124.5 MB in the beginning and 124.4 MB in the end (delta: 119.7 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 19:56:15,727 INFO L168 Benchmark]: CACSL2BoogieTranslator took 294.68 ms. Allocated memory is still 152.0 MB. Free memory was 127.2 MB in the beginning and 116.7 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-10-27 19:56:15,729 INFO L168 Benchmark]: Boogie Preprocessor took 91.58 ms. Allocated memory is still 152.0 MB. Free memory was 116.7 MB in the beginning and 114.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-10-27 19:56:15,729 INFO L168 Benchmark]: RCFGBuilder took 796.53 ms. Allocated memory is still 152.0 MB. Free memory was 114.9 MB in the beginning and 130.6 MB in the end (delta: -15.7 MB). Peak memory consumption was 17.8 MB. Max. memory is 8.0 GB. [2020-10-27 19:56:15,733 INFO L168 Benchmark]: TraceAbstraction took 40052.42 ms. Allocated memory was 152.0 MB in the beginning and 483.4 MB in the end (delta: 331.4 MB). Free memory was 130.1 MB in the beginning and 249.5 MB in the end (delta: -119.4 MB). Peak memory consumption was 213.0 MB. Max. memory is 8.0 GB. [2020-10-27 19:56:15,739 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.69 ms. Allocated memory is still 152.0 MB. Free memory was 124.5 MB in the beginning and 124.4 MB in the end (delta: 119.7 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 294.68 ms. Allocated memory is still 152.0 MB. Free memory was 127.2 MB in the beginning and 116.7 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 91.58 ms. Allocated memory is still 152.0 MB. Free memory was 116.7 MB in the beginning and 114.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 796.53 ms. Allocated memory is still 152.0 MB. Free memory was 114.9 MB in the beginning and 130.6 MB in the end (delta: -15.7 MB). Peak memory consumption was 17.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 40052.42 ms. Allocated memory was 152.0 MB in the beginning and 483.4 MB in the end (delta: 331.4 MB). Free memory was 130.1 MB in the beginning and 249.5 MB in the end (delta: -119.4 MB). Peak memory consumption was 213.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: 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: 43]: Loop Invariant [2020-10-27 19:56:15,755 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 19:56:15,756 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 19:56:15,756 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 19:56:15,756 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-27 19:56:15,756 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-27 19:56:15,757 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 19:56:15,757 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-27 19:56:15,757 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-27 19:56:15,757 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 19:56:15,758 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 19:56:15,758 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-27 19:56:15,758 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-27 19:56:15,759 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 19:56:15,759 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-27 19:56:15,759 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-27 19:56:15,760 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 19:56:15,760 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 19:56:15,760 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 19:56:15,760 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 19:56:15,760 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 19:56:15,761 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 19:56:15,761 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 19:56:15,761 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 19:56:15,761 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 19:56:15,761 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 19:56:15,761 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 19:56:15,762 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 19:56:15,762 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 19:56:15,762 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 19:56:15,762 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 19:56:15,762 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 19:56:15,763 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 19:56:15,763 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 19:56:15,763 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 19:56:15,763 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 19:56:15,763 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 19:56:15,764 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 19:56:15,764 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 19:56:15,764 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 19:56:15,765 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 19:56:15,765 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-27 19:56:15,765 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-27 19:56:15,765 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 19:56:15,766 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-27 19:56:15,766 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-27 19:56:15,766 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 19:56:15,767 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 19:56:15,767 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-27 19:56:15,767 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-27 19:56:15,767 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 19:56:15,768 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-27 19:56:15,768 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-27 19:56:15,768 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 19:56:15,768 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 19:56:15,769 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 19:56:15,769 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 19:56:15,769 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 19:56:15,769 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 19:56:15,769 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 19:56:15,770 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 19:56:15,770 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 19:56:15,770 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 19:56:15,770 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 19:56:15,771 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 19:56:15,771 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 19:56:15,771 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 19:56:15,771 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 19:56:15,772 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 19:56:15,772 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 19:56:15,772 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 19:56:15,773 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 19:56:15,773 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 19:56:15,773 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 19:56:15,773 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: ((((((((unknown-#memory_int-unknown[#memory_$Pointer$[#memory_$Pointer$[#memory_$Pointer$[cont][cont]][#memory_$Pointer$[cont][cont] + unknown-#memory_int-unknown[pa][pa] * 4]][#memory_$Pointer$[#memory_$Pointer$[cont][cont]][#memory_$Pointer$[cont][cont] + unknown-#memory_int-unknown[pa][pa] * 4]]][#memory_$Pointer$[#memory_$Pointer$[#memory_$Pointer$[cont][cont]][#memory_$Pointer$[cont][cont] + unknown-#memory_int-unknown[pa][pa] * 4]][#memory_$Pointer$[#memory_$Pointer$[cont][cont]][#memory_$Pointer$[cont][cont] + unknown-#memory_int-unknown[pa][pa] * 4]] + 4] == unknown-#memory_int-unknown[pa][pa] && dummies == 0) && !(dummy == a)) && !(dummy == cont)) && !(dummies == a)) && !(cont == a)) && !(dummies == dummy)) && #memory_$Pointer$[cont][cont] == 4) && i <= unknown-#memory_int-unknown[pa][pa]) && !(dummies == cont) - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: (((((dummies == 0 && !(dummy == a)) && !(dummy == cont)) && !(dummies == a)) && !(cont == a)) && !(dummies == dummy)) && !(dummies == cont) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 29 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 39.6s, OverallIterations: 12, TraceHistogramMax: 11, AutomataDifference: 4.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 206 SDtfs, 99 SDslu, 848 SDs, 0 SdLazy, 1010 SolverSat, 57 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 216 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 157 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 277 ImplicationChecksByTransitivity, 4.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 12 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 32 PreInvPairs, 44 NumberOfFragments, 438 HoareAnnotationTreeSize, 32 FomulaSimplifications, 1368 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 200 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 34.0s InterpolantComputationTime, 337 NumberOfCodeBlocks, 337 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 325 ConstructedInterpolants, 0 QuantifiedInterpolants, 164711 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 2 PerfectInterpolantSequences, 90/440 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...