/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --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/seq-mthreaded/pals_opt-floodmax.4.3.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 17:58:36,690 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 17:58:36,696 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 17:58:36,758 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 17:58:36,759 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 17:58:36,765 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 17:58:36,768 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 17:58:36,773 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 17:58:36,776 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 17:58:36,782 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 17:58:36,784 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 17:58:36,785 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 17:58:36,786 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 17:58:36,789 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 17:58:36,792 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 17:58:36,795 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 17:58:36,796 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 17:58:36,800 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 17:58:36,809 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 17:58:36,813 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 17:58:36,815 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 17:58:36,819 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 17:58:36,821 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 17:58:36,823 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 17:58:36,840 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 17:58:36,840 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 17:58:36,840 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 17:58:36,842 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 17:58:36,845 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 17:58:36,846 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 17:58:36,846 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 17:58:36,847 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 17:58:36,849 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 17:58:36,850 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 17:58:36,851 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 17:58:36,851 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 17:58:36,853 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 17:58:36,853 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 17:58:36,853 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 17:58:36,854 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 17:58:36,855 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 17:58:36,859 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 [2020-10-28 17:58:36,909 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 17:58:36,910 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 17:58:36,915 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 17:58:36,916 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 17:58:36,916 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 17:58:36,916 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 17:58:36,917 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 17:58:36,917 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 17:58:36,917 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 17:58:36,917 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 17:58:36,919 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 17:58:36,919 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 17:58:36,919 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 17:58:36,919 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 17:58:36,919 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 17:58:36,920 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 17:58:36,920 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 17:58:36,920 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 17:58:36,921 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 17:58:36,921 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 17:58:36,921 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 17:58:36,921 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 17:58:36,922 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 17:58:36,922 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 17:58:36,922 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 17:58:36,922 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 17:58:36,922 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 17:58:36,923 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 17:58:36,923 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 17:58:36,923 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 17:58:37,328 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 17:58:37,354 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 17:58:37,357 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 17:58:37,359 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 17:58:37,360 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 17:58:37,361 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.4.3.ufo.UNBOUNDED.pals.c [2020-10-28 17:58:37,435 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a9e322de0/1c5bc245af514a748549572d0c0ccb53/FLAG591c9468f [2020-10-28 17:58:38,229 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 17:58:38,230 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.4.3.ufo.UNBOUNDED.pals.c [2020-10-28 17:58:38,250 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a9e322de0/1c5bc245af514a748549572d0c0ccb53/FLAG591c9468f [2020-10-28 17:58:38,488 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a9e322de0/1c5bc245af514a748549572d0c0ccb53 [2020-10-28 17:58:38,491 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 17:58:38,498 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 17:58:38,500 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 17:58:38,500 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 17:58:38,504 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 17:58:38,505 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 05:58:38" (1/1) ... [2020-10-28 17:58:38,509 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a48d94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:58:38, skipping insertion in model container [2020-10-28 17:58:38,510 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 05:58:38" (1/1) ... [2020-10-28 17:58:38,518 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 17:58:38,569 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 17:58:38,921 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 17:58:38,943 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 17:58:39,109 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 17:58:39,131 INFO L208 MainTranslator]: Completed translation [2020-10-28 17:58:39,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:58:39 WrapperNode [2020-10-28 17:58:39,132 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 17:58:39,133 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 17:58:39,133 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 17:58:39,134 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 17:58:39,173 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:58:39" (1/1) ... [2020-10-28 17:58:39,174 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:58:39" (1/1) ... [2020-10-28 17:58:39,212 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:58:39" (1/1) ... [2020-10-28 17:58:39,212 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:58:39" (1/1) ... [2020-10-28 17:58:39,280 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:58:39" (1/1) ... [2020-10-28 17:58:39,326 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:58:39" (1/1) ... [2020-10-28 17:58:39,338 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:58:39" (1/1) ... [2020-10-28 17:58:39,356 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 17:58:39,360 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 17:58:39,361 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 17:58:39,361 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 17:58:39,362 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:58:39" (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 [2020-10-28 17:58:39,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 17:58:39,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 17:58:39,457 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 17:58:39,457 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-28 17:58:39,458 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-28 17:58:39,458 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-28 17:58:39,459 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-28 17:58:39,459 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-28 17:58:39,460 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-28 17:58:39,460 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-28 17:58:39,461 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 17:58:39,461 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-28 17:58:39,461 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 17:58:39,461 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 17:58:39,462 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 17:58:39,464 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 17:58:39,465 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-28 17:58:39,465 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-28 17:58:39,465 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-28 17:58:39,465 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-28 17:58:39,465 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-28 17:58:39,465 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-28 17:58:39,466 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-28 17:58:39,466 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-28 17:58:39,466 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-28 17:58:39,466 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-28 17:58:39,466 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-28 17:58:39,466 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-28 17:58:39,466 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-28 17:58:39,466 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 17:58:39,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 17:58:39,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 17:58:39,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 17:58:39,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 17:58:39,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 17:58:39,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 17:58:41,127 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 17:58:41,127 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-28 17:58:41,131 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 05:58:41 BoogieIcfgContainer [2020-10-28 17:58:41,131 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 17:58:41,134 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 17:58:41,134 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 17:58:41,139 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 17:58:41,140 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 05:58:38" (1/3) ... [2020-10-28 17:58:41,141 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49533cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 05:58:41, skipping insertion in model container [2020-10-28 17:58:41,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:58:39" (2/3) ... [2020-10-28 17:58:41,141 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49533cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 05:58:41, skipping insertion in model container [2020-10-28 17:58:41,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 05:58:41" (3/3) ... [2020-10-28 17:58:41,143 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.4.3.ufo.UNBOUNDED.pals.c [2020-10-28 17:58:41,156 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 17:58:41,163 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 17:58:41,177 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 17:58:41,214 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 17:58:41,214 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 17:58:41,214 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 17:58:41,215 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 17:58:41,215 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 17:58:41,215 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 17:58:41,215 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 17:58:41,215 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 17:58:41,242 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states. [2020-10-28 17:58:41,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-28 17:58:41,261 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:58:41,262 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:58:41,263 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:58:41,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:58:41,270 INFO L82 PathProgramCache]: Analyzing trace with hash 2135324040, now seen corresponding path program 1 times [2020-10-28 17:58:41,280 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:58:41,280 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1876776391] [2020-10-28 17:58:41,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:58:41,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:58:41,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:58:42,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:58:42,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-28 17:58:42,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:58:42,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 564 [2020-10-28 17:58:42,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:58:42,340 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:58:42,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:58:42,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-28 17:58:42,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:58:42,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 17:58:43,021 WARN L193 SmtUtils]: Spent 541.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-28 17:58:43,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:58:43,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:58:43,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:58:43,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:58:43,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:58:43,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:58:43,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-28 17:58:43,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:58:43,096 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:58:43,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:58:43,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:58:43,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:58:43,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:58:43,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:58:43,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:58:43,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:58:43,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:58:43,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-28 17:58:43,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:58:43,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-28 17:58:43,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:58:43,239 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:58:43,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:58:43,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:58:43,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:58:43,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:58:43,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-28 17:58:43,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:58:43,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:58:43,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:58:43,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:58:43,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:58:43,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:58:43,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:58:43,301 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:58:43,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:58:43,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-28 17:58:43,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:58:43,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 22 [2020-10-28 17:58:43,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-28 17:58:43,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:58:43,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:58:43,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:58:43,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:58:43,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:58:43,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 17:58:43,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:58:43,409 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:58:43,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:58:43,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:58:43,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:58:43,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-28 17:58:43,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-28 17:58:43,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:58:43,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:58:43,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:58:43,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:58:43,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:58:43,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 17:58:43,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:58:43,489 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:58:43,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:58:43,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:58:43,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:58:43,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:58:43,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-28 17:58:43,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:58:43,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:58:43,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:58:43,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:58:43,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:58:43,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 17:58:43,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:58:43,568 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:58:43,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:58:43,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:58:43,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:58:43,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:58:43,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-28 17:58:43,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:58:43,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:58:43,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:58:43,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:58:43,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:58:43,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 17:58:43,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:58:43,629 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:58:43,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:58:43,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:58:43,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:58:43,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:58:43,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-28 17:58:43,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:58:43,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:58:43,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:58:43,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:58:43,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:58:43,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:58:43,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:58:43,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:58:43,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:58:43,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:58:43,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:58:43,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:58:43,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 17:58:43,677 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1876776391] [2020-10-28 17:58:43,679 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:58:43,680 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-28 17:58:43,681 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793362970] [2020-10-28 17:58:43,686 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 17:58:43,687 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:58:43,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 17:58:43,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-28 17:58:43,704 INFO L87 Difference]: Start difference. First operand 369 states. Second operand 7 states. [2020-10-28 17:58:44,810 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 17:58:45,332 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 17:58:45,853 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 17:58:46,412 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 17:58:46,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:58:46,998 INFO L93 Difference]: Finished difference Result 565 states and 949 transitions. [2020-10-28 17:58:47,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-28 17:58:47,004 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 109 [2020-10-28 17:58:47,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:58:47,022 INFO L225 Difference]: With dead ends: 565 [2020-10-28 17:58:47,023 INFO L226 Difference]: Without dead ends: 401 [2020-10-28 17:58:47,028 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-28 17:58:47,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2020-10-28 17:58:47,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 361. [2020-10-28 17:58:47,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 361 states. [2020-10-28 17:58:47,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 620 transitions. [2020-10-28 17:58:47,145 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 620 transitions. Word has length 109 [2020-10-28 17:58:47,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:58:47,146 INFO L481 AbstractCegarLoop]: Abstraction has 361 states and 620 transitions. [2020-10-28 17:58:47,146 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 17:58:47,146 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 620 transitions. [2020-10-28 17:58:47,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-28 17:58:47,152 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:58:47,152 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:58:47,153 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 17:58:47,153 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:58:47,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:58:47,154 INFO L82 PathProgramCache]: Analyzing trace with hash -231370554, now seen corresponding path program 1 times [2020-10-28 17:58:47,154 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:58:47,154 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [394884361] [2020-10-28 17:58:47,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:58:47,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:58:47,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:58:48,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:58:48,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-28 17:58:48,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:58:48,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1452 [2020-10-28 17:58:48,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:58:48,675 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:58:48,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:58:48,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64 [2020-10-28 17:58:48,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-28 17:58:48,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:58:49,382 WARN L193 SmtUtils]: Spent 609.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-28 17:58:49,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:58:49,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:58:49,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:58:49,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:58:49,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:58:49,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:58:49,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-28 17:58:49,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:58:49,416 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:58:49,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:58:49,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:58:49,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:58:49,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:58:49,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:58:49,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:58:49,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:58:49,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:58:49,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-28 17:58:49,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:58:49,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 199 [2020-10-28 17:58:49,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:58:49,648 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:58:49,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:58:49,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:58:49,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-28 17:58:49,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:58:49,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-28 17:58:49,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:58:49,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:58:49,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:58:49,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:58:49,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:58:49,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 17:58:49,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:58:49,714 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:58:49,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:58:49,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 17:58:49,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:58:49,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:58:49,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-28 17:58:49,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:58:49,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:58:49,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:58:49,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:58:49,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:58:49,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 17:58:49,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:58:49,868 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:58:49,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:58:49,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:58:49,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:58:49,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-28 17:58:49,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-28 17:58:49,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:58:49,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:58:49,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:58:49,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:58:49,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:58:49,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 17:58:49,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:58:49,967 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:58:49,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:58:49,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:58:49,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:58:49,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:58:50,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-28 17:58:50,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:58:50,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:58:50,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:58:50,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:58:50,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:58:50,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 17:58:50,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:58:50,040 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:58:50,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:58:50,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:58:50,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:58:50,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:58:50,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-28 17:58:50,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:58:50,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:58:50,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:58:50,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:58:50,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:58:50,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 17:58:50,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:58:50,103 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:58:50,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:58:50,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:58:50,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:58:50,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:58:50,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-28 17:58:50,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:58:50,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:58:50,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:58:50,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:58:50,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:58:50,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:58:50,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:58:50,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:58:50,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:58:50,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:58:50,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:58:50,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:58:50,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 17:58:50,150 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [394884361] [2020-10-28 17:58:50,150 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:58:50,150 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-28 17:58:50,151 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024536228] [2020-10-28 17:58:50,152 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-28 17:58:50,153 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:58:50,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-28 17:58:50,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-10-28 17:58:50,156 INFO L87 Difference]: Start difference. First operand 361 states and 620 transitions. Second operand 13 states. [2020-10-28 17:58:53,039 WARN L193 SmtUtils]: Spent 555.00 ms on a formula simplification that was a NOOP. DAG size: 283 [2020-10-28 17:58:53,708 WARN L193 SmtUtils]: Spent 584.00 ms on a formula simplification that was a NOOP. DAG size: 285 [2020-10-28 17:58:54,490 WARN L193 SmtUtils]: Spent 599.00 ms on a formula simplification that was a NOOP. DAG size: 283 [2020-10-28 17:58:55,110 WARN L193 SmtUtils]: Spent 568.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2020-10-28 17:58:56,029 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 17:58:56,739 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 17:58:57,603 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 17:58:58,327 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 17:58:59,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:58:59,330 INFO L93 Difference]: Finished difference Result 560 states and 937 transitions. [2020-10-28 17:58:59,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-28 17:58:59,331 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 109 [2020-10-28 17:58:59,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:58:59,336 INFO L225 Difference]: With dead ends: 560 [2020-10-28 17:58:59,336 INFO L226 Difference]: Without dead ends: 401 [2020-10-28 17:58:59,339 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2020-10-28 17:58:59,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2020-10-28 17:58:59,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 361. [2020-10-28 17:58:59,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 361 states. [2020-10-28 17:58:59,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 574 transitions. [2020-10-28 17:58:59,406 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 574 transitions. Word has length 109 [2020-10-28 17:58:59,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:58:59,407 INFO L481 AbstractCegarLoop]: Abstraction has 361 states and 574 transitions. [2020-10-28 17:58:59,407 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-28 17:58:59,407 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 574 transitions. [2020-10-28 17:58:59,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-10-28 17:58:59,412 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:58:59,412 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:58:59,412 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 17:58:59,412 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:58:59,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:58:59,413 INFO L82 PathProgramCache]: Analyzing trace with hash -1064128907, now seen corresponding path program 1 times [2020-10-28 17:58:59,413 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:58:59,414 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [43136156] [2020-10-28 17:58:59,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:58:59,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:58:59,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:58:59,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:59:00,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:59:00,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:59:01,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:59:04,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:59:04,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 17:59:04,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 17:59:04,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5053 [2020-10-28 17:59:04,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:59:04,572 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:59:04,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:59:04,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-10-28 17:59:04,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-28 17:59:04,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:59:05,199 WARN L193 SmtUtils]: Spent 532.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-28 17:59:05,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:59:05,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:59:05,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:59:05,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:59:05,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:59:05,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:59:05,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 17:59:05,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:59:05,229 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:59:05,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:59:05,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:59:05,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:59:05,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:59:05,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:59:05,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:59:05,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:59:05,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:59:05,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-28 17:59:05,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:59:05,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 193 [2020-10-28 17:59:05,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:59:05,453 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:59:05,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:59:05,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:59:05,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-28 17:59:05,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:59:05,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-28 17:59:05,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:59:05,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:59:05,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:59:05,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:59:05,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:59:05,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 17:59:05,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:59:05,530 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:59:05,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:59:05,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:59:05,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:59:05,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:59:05,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-28 17:59:05,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:59:05,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:59:05,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:59:05,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:59:05,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:59:05,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 17:59:05,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:59:05,590 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:59:05,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:59:05,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:59:05,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:59:05,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 17:59:05,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-28 17:59:05,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:59:05,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:59:05,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:59:05,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:59:05,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:59:05,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 17:59:05,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:59:05,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:59:05,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:59:05,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:59:05,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:59:05,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:59:05,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-28 17:59:05,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:59:05,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:59:05,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:59:05,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:59:05,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:59:05,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 17:59:05,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:59:05,724 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:59:05,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:59:05,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:59:05,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:59:05,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:59:05,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-28 17:59:05,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:59:05,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:59:05,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:59:05,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:59:05,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:59:05,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-28 17:59:05,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:59:05,803 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:59:05,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:59:05,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 17:59:05,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 17:59:05,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:59:05,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-28 17:59:05,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:59:05,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:59:05,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:59:05,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:59:05,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:59:05,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:59:05,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:59:05,863 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:59:05,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:59:05,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:59:05,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:59:05,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:59:05,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 17:59:05,927 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [43136156] [2020-10-28 17:59:05,927 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:59:05,927 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-28 17:59:05,928 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800683616] [2020-10-28 17:59:05,929 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 17:59:05,930 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:59:05,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 17:59:05,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-28 17:59:05,931 INFO L87 Difference]: Start difference. First operand 361 states and 574 transitions. Second operand 10 states. [2020-10-28 17:59:06,564 WARN L193 SmtUtils]: Spent 558.00 ms on a formula simplification that was a NOOP. DAG size: 284 [2020-10-28 17:59:08,818 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-28 17:59:09,376 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-28 17:59:10,035 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-28 17:59:10,673 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 17:59:11,025 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-28 17:59:12,095 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 17:59:12,517 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 17:59:12,956 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 17:59:13,373 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-28 17:59:14,029 WARN L193 SmtUtils]: Spent 632.00 ms on a formula simplification that was a NOOP. DAG size: 288 [2020-10-28 17:59:14,255 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-28 17:59:14,618 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-28 17:59:14,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:59:14,734 INFO L93 Difference]: Finished difference Result 753 states and 1202 transitions. [2020-10-28 17:59:14,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-28 17:59:14,735 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 154 [2020-10-28 17:59:14,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:59:14,741 INFO L225 Difference]: With dead ends: 753 [2020-10-28 17:59:14,741 INFO L226 Difference]: Without dead ends: 600 [2020-10-28 17:59:14,744 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=142, Invalid=364, Unknown=0, NotChecked=0, Total=506 [2020-10-28 17:59:14,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2020-10-28 17:59:14,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 513. [2020-10-28 17:59:14,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 513 states. [2020-10-28 17:59:14,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 513 states and 819 transitions. [2020-10-28 17:59:14,811 INFO L78 Accepts]: Start accepts. Automaton has 513 states and 819 transitions. Word has length 154 [2020-10-28 17:59:14,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:59:14,812 INFO L481 AbstractCegarLoop]: Abstraction has 513 states and 819 transitions. [2020-10-28 17:59:14,812 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-28 17:59:14,812 INFO L276 IsEmpty]: Start isEmpty. Operand 513 states and 819 transitions. [2020-10-28 17:59:14,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-10-28 17:59:14,816 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:59:14,816 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:59:14,816 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 17:59:14,816 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:59:14,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:59:14,817 INFO L82 PathProgramCache]: Analyzing trace with hash -240716644, now seen corresponding path program 1 times [2020-10-28 17:59:14,817 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:59:14,817 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [146926717] [2020-10-28 17:59:14,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:59:14,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:59:14,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:59:15,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:59:15,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:59:16,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:59:16,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:59:17,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:59:17,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:59:19,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:59:19,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-10-28 17:59:19,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-28 17:59:19,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5046 [2020-10-28 17:59:19,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:59:19,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:59:19,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:59:19,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-28 17:59:19,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 144 [2020-10-28 17:59:19,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:59:20,710 WARN L193 SmtUtils]: Spent 611.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-28 17:59:20,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:59:20,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:59:20,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:59:20,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:59:20,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:59:20,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:59:20,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 17:59:20,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:59:20,741 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:59:20,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:59:20,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:59:20,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:59:20,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:59:20,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:59:20,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:59:20,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:59:20,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:59:20,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-28 17:59:20,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:59:20,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 204 [2020-10-28 17:59:20,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:59:20,985 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:59:20,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:59:20,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:59:20,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-28 17:59:20,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:59:21,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-28 17:59:21,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:59:21,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:59:21,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:59:21,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:59:21,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:59:21,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:59:21,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:59:21,103 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:59:21,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:59:21,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:59:21,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:59:21,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:59:21,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-28 17:59:21,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:59:21,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:59:21,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:59:21,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:59:21,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:59:21,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 17:59:21,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:59:21,166 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:59:21,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:59:21,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:59:21,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:59:21,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:59:21,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-28 17:59:21,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:59:21,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:59:21,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:59:21,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:59:21,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:59:21,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 17:59:21,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:59:21,229 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:59:21,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:59:21,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:59:21,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:59:21,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:59:21,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-28 17:59:21,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:59:21,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:59:21,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:59:21,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:59:21,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:59:21,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 17:59:21,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:59:21,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:59:21,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:59:21,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:59:21,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:59:21,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:59:21,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-28 17:59:21,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:59:21,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:59:21,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:59:21,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-28 17:59:21,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:59:21,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 17:59:21,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:59:21,357 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:59:21,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:59:21,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:59:21,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 17:59:21,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:59:21,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-28 17:59:21,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:59:21,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:59:21,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:59:21,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:59:21,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:59:21,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:59:21,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:59:21,384 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:59:21,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:59:21,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:59:21,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:59:21,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:59:21,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 17:59:21,468 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [146926717] [2020-10-28 17:59:21,468 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:59:21,468 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-28 17:59:21,469 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335694564] [2020-10-28 17:59:21,470 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 17:59:21,470 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:59:21,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 17:59:21,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-28 17:59:21,471 INFO L87 Difference]: Start difference. First operand 513 states and 819 transitions. Second operand 10 states. [2020-10-28 17:59:22,189 WARN L193 SmtUtils]: Spent 639.00 ms on a formula simplification that was a NOOP. DAG size: 284 [2020-10-28 17:59:22,851 WARN L193 SmtUtils]: Spent 619.00 ms on a formula simplification that was a NOOP. DAG size: 282 [2020-10-28 17:59:23,649 WARN L193 SmtUtils]: Spent 625.00 ms on a formula simplification that was a NOOP. DAG size: 288 [2020-10-28 17:59:24,279 WARN L193 SmtUtils]: Spent 609.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2020-10-28 17:59:28,748 WARN L193 SmtUtils]: Spent 618.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2020-10-28 17:59:29,177 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-28 17:59:29,498 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-28 17:59:30,336 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-28 17:59:30,821 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-28 17:59:31,711 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-28 17:59:32,190 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-28 17:59:33,062 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-28 17:59:33,541 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-28 17:59:34,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:59:34,868 INFO L93 Difference]: Finished difference Result 1673 states and 2688 transitions. [2020-10-28 17:59:34,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-28 17:59:34,869 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 157 [2020-10-28 17:59:34,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:59:34,876 INFO L225 Difference]: With dead ends: 1673 [2020-10-28 17:59:34,877 INFO L226 Difference]: Without dead ends: 1197 [2020-10-28 17:59:34,879 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2020-10-28 17:59:34,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1197 states. [2020-10-28 17:59:34,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1197 to 1044. [2020-10-28 17:59:34,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1044 states. [2020-10-28 17:59:34,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1044 states to 1044 states and 1659 transitions. [2020-10-28 17:59:34,990 INFO L78 Accepts]: Start accepts. Automaton has 1044 states and 1659 transitions. Word has length 157 [2020-10-28 17:59:34,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:59:34,991 INFO L481 AbstractCegarLoop]: Abstraction has 1044 states and 1659 transitions. [2020-10-28 17:59:34,991 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-28 17:59:34,991 INFO L276 IsEmpty]: Start isEmpty. Operand 1044 states and 1659 transitions. [2020-10-28 17:59:34,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-10-28 17:59:34,995 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:59:34,995 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:59:34,995 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 17:59:34,995 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:59:34,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:59:34,996 INFO L82 PathProgramCache]: Analyzing trace with hash -798233543, now seen corresponding path program 1 times [2020-10-28 17:59:34,996 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:59:34,996 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1145262523] [2020-10-28 17:59:34,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:59:35,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:59:35,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:59:35,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:59:35,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:59:35,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:59:35,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:59:40,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:59:40,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-10-28 17:59:40,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 17:59:40,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-28 17:59:40,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:59:40,078 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:59:40,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:59:40,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-28 17:59:40,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-28 17:59:40,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:59:40,794 WARN L193 SmtUtils]: Spent 558.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-28 17:59:40,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:59:40,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:59:40,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:59:40,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:59:40,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:59:40,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:59:40,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 17:59:40,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:59:40,817 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:59:40,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:59:40,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:59:40,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:59:40,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:59:40,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:59:40,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:59:40,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:59:41,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:59:41,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-28 17:59:41,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:59:41,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 161 [2020-10-28 17:59:41,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:59:41,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:59:41,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:59:41,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:59:41,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-28 17:59:41,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:59:41,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-28 17:59:41,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:59:41,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:59:41,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:59:41,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:59:41,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:59:41,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:59:41,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:59:41,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:59:41,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:59:41,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:59:41,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:59:41,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:59:41,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-28 17:59:41,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:59:41,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:59:41,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:59:41,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:59:41,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:59:41,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 17:59:41,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:59:41,277 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:59:41,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:59:41,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:59:41,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:59:41,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:59:41,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-28 17:59:41,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:59:41,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:59:41,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:59:41,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:59:41,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:59:41,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 17:59:41,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:59:41,340 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:59:41,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:59:41,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:59:41,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:59:41,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:59:41,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-28 17:59:41,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:59:41,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:59:41,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:59:41,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:59:41,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:59:41,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 17:59:41,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:59:41,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:59:41,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:59:41,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:59:41,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:59:41,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:59:41,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-28 17:59:41,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:59:41,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:59:41,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:59:41,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 17:59:41,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:59:41,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 17:59:41,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:59:41,481 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:59:41,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:59:41,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 17:59:41,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:59:41,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:59:41,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-28 17:59:41,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:59:41,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:59:41,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:59:41,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:59:41,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:59:41,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:59:41,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:59:41,510 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:59:41,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:59:41,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:59:41,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:59:41,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:59:41,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 17:59:41,596 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1145262523] [2020-10-28 17:59:41,597 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:59:41,597 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-28 17:59:41,598 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749875534] [2020-10-28 17:59:41,598 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 17:59:41,598 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:59:41,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 17:59:41,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-28 17:59:41,599 INFO L87 Difference]: Start difference. First operand 1044 states and 1659 transitions. Second operand 10 states. [2020-10-28 17:59:42,353 WARN L193 SmtUtils]: Spent 674.00 ms on a formula simplification that was a NOOP. DAG size: 284 [2020-10-28 17:59:43,002 WARN L193 SmtUtils]: Spent 607.00 ms on a formula simplification that was a NOOP. DAG size: 290 [2020-10-28 17:59:43,984 WARN L193 SmtUtils]: Spent 650.00 ms on a formula simplification that was a NOOP. DAG size: 294 [2020-10-28 17:59:45,259 WARN L193 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 292 DAG size of output: 288 [2020-10-28 17:59:50,721 WARN L193 SmtUtils]: Spent 629.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2020-10-28 17:59:51,230 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-28 17:59:51,570 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 17:59:52,191 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-28 17:59:52,579 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-28 17:59:53,199 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 17:59:53,970 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-28 17:59:54,454 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-28 17:59:54,974 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 17:59:55,817 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-28 17:59:56,305 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-28 17:59:56,836 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 17:59:57,531 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-28 17:59:59,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:59:59,007 INFO L93 Difference]: Finished difference Result 4223 states and 6704 transitions. [2020-10-28 17:59:59,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-28 17:59:59,008 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 158 [2020-10-28 17:59:59,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:59:59,027 INFO L225 Difference]: With dead ends: 4223 [2020-10-28 17:59:59,027 INFO L226 Difference]: Without dead ends: 3288 [2020-10-28 17:59:59,031 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2020-10-28 17:59:59,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3288 states. [2020-10-28 17:59:59,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3288 to 2878. [2020-10-28 17:59:59,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2878 states. [2020-10-28 17:59:59,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2878 states to 2878 states and 4540 transitions. [2020-10-28 17:59:59,386 INFO L78 Accepts]: Start accepts. Automaton has 2878 states and 4540 transitions. Word has length 158 [2020-10-28 17:59:59,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:59:59,387 INFO L481 AbstractCegarLoop]: Abstraction has 2878 states and 4540 transitions. [2020-10-28 17:59:59,387 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-28 17:59:59,387 INFO L276 IsEmpty]: Start isEmpty. Operand 2878 states and 4540 transitions. [2020-10-28 17:59:59,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-10-28 17:59:59,395 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:59:59,395 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:59:59,395 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 17:59:59,395 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:59:59,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:59:59,396 INFO L82 PathProgramCache]: Analyzing trace with hash 1014184156, now seen corresponding path program 1 times [2020-10-28 17:59:59,396 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:59:59,396 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1745753293] [2020-10-28 17:59:59,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:59:59,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:59:59,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:59:59,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:59:59,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:00,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:02,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:02,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:04,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:00:04,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-28 18:00:04,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-28 18:00:04,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-28 18:00:04,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:00:04,474 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:00:04,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 18:00:04,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-28 18:00:04,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 144 [2020-10-28 18:00:04,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:00:05,254 WARN L193 SmtUtils]: Spent 692.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-28 18:00:05,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 18:00:05,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:00:05,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:05,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:00:05,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:00:05,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:00:05,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-28 18:00:05,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:00:05,291 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:00:05,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:00:05,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:00:05,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:00:05,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 18:00:05,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 18:00:05,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:00:05,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:05,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:00:05,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-28 18:00:05,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:00:05,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 203 [2020-10-28 18:00:05,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:00:05,535 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:00:05,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 18:00:05,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:00:05,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-28 18:00:05,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:00:05,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-28 18:00:05,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:00:05,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:05,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:00:05,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:00:05,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:00:05,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 18:00:05,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:00:05,711 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:00:05,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:00:05,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:00:05,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 18:00:05,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:00:05,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-28 18:00:05,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:00:05,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:05,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:00:05,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 18:00:05,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:00:05,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 18:00:05,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:00:05,775 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:00:05,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:00:05,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:00:05,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 18:00:05,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:00:05,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-28 18:00:05,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:00:05,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:05,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:00:05,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 18:00:05,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:00:05,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 18:00:05,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:00:05,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:00:05,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:00:05,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:00:05,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 18:00:05,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:00:05,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-28 18:00:05,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:00:05,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:05,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:00:05,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 18:00:05,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:00:05,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 18:00:05,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:00:05,903 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:00:05,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:00:05,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:00:05,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 18:00:05,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:00:05,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-28 18:00:05,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:00:05,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:05,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:00:05,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 18:00:05,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:00:05,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 18:00:05,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:00:05,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:00:05,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:00:05,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 18:00:05,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 18:00:05,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:00:06,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-28 18:00:06,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:00:06,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:06,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:00:06,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:00:06,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:00:06,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:00:06,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:00:06,013 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:00:06,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:00:06,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 18:00:06,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:00:06,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:00:06,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 18:00:06,108 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1745753293] [2020-10-28 18:00:06,108 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 18:00:06,108 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-28 18:00:06,109 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137234948] [2020-10-28 18:00:06,109 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 18:00:06,109 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 18:00:06,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 18:00:06,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-28 18:00:06,110 INFO L87 Difference]: Start difference. First operand 2878 states and 4540 transitions. Second operand 10 states. [2020-10-28 18:00:06,876 WARN L193 SmtUtils]: Spent 648.00 ms on a formula simplification that was a NOOP. DAG size: 284 [2020-10-28 18:00:07,619 WARN L193 SmtUtils]: Spent 704.00 ms on a formula simplification that was a NOOP. DAG size: 292 [2020-10-28 18:00:08,478 WARN L193 SmtUtils]: Spent 720.00 ms on a formula simplification that was a NOOP. DAG size: 295 [2020-10-28 18:00:09,897 WARN L193 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 294 DAG size of output: 288 [2020-10-28 18:00:15,880 WARN L193 SmtUtils]: Spent 616.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2020-10-28 18:00:16,369 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-28 18:00:16,679 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 18:00:17,179 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-28 18:00:17,620 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-28 18:00:18,281 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 18:00:18,900 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-28 18:00:19,434 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-28 18:00:20,039 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 18:00:20,632 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-28 18:00:21,192 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-28 18:00:21,751 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 18:00:22,285 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-28 18:00:23,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 18:00:23,973 INFO L93 Difference]: Finished difference Result 12063 states and 19095 transitions. [2020-10-28 18:00:23,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-28 18:00:23,974 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 159 [2020-10-28 18:00:23,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 18:00:24,021 INFO L225 Difference]: With dead ends: 12063 [2020-10-28 18:00:24,021 INFO L226 Difference]: Without dead ends: 9456 [2020-10-28 18:00:24,031 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2020-10-28 18:00:24,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9456 states. [2020-10-28 18:00:24,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9456 to 8302. [2020-10-28 18:00:24,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8302 states. [2020-10-28 18:00:24,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8302 states to 8302 states and 13045 transitions. [2020-10-28 18:00:24,914 INFO L78 Accepts]: Start accepts. Automaton has 8302 states and 13045 transitions. Word has length 159 [2020-10-28 18:00:24,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 18:00:24,914 INFO L481 AbstractCegarLoop]: Abstraction has 8302 states and 13045 transitions. [2020-10-28 18:00:24,914 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-28 18:00:24,914 INFO L276 IsEmpty]: Start isEmpty. Operand 8302 states and 13045 transitions. [2020-10-28 18:00:24,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-10-28 18:00:24,932 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 18:00:24,932 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 18:00:24,932 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-28 18:00:24,933 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 18:00:24,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 18:00:24,933 INFO L82 PathProgramCache]: Analyzing trace with hash 1688699200, now seen corresponding path program 1 times [2020-10-28 18:00:24,933 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 18:00:24,934 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1757728621] [2020-10-28 18:00:24,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 18:00:24,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:00:25,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:25,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:25,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:25,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:25,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:30,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:00:30,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 184 [2020-10-28 18:00:30,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 18:00:30,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-28 18:00:30,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:00:30,018 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:00:30,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 18:00:30,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-28 18:00:30,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-28 18:00:30,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:00:30,757 WARN L193 SmtUtils]: Spent 619.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-28 18:00:30,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 18:00:30,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:00:30,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:30,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:00:30,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:00:30,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:00:30,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-28 18:00:30,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:00:30,816 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:00:30,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:00:30,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:00:30,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:00:30,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:00:30,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 18:00:30,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:00:30,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:31,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:00:31,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-28 18:00:31,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:00:31,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 161 [2020-10-28 18:00:31,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:00:31,018 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:00:31,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 18:00:31,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:00:31,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 18:00:31,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:00:31,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-28 18:00:31,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:00:31,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:31,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:00:31,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:00:31,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:00:31,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 18:00:31,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:00:31,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:00:31,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:00:31,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:00:31,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 18:00:31,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:00:31,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-28 18:00:31,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:00:31,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:31,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:00:31,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 18:00:31,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:00:31,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 18:00:31,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:00:31,186 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:00:31,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:00:31,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:00:31,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 18:00:31,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:00:31,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-28 18:00:31,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:00:31,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:31,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:00:31,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 18:00:31,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:00:31,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 18:00:31,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:00:31,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:00:31,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:00:31,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:00:31,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 18:00:31,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:00:31,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-28 18:00:31,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:00:31,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:31,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:00:31,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 18:00:31,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:00:31,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 18:00:31,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:00:31,326 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:00:31,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:00:31,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:00:31,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 18:00:31,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:00:31,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-28 18:00:31,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:00:31,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:31,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:00:31,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 18:00:31,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:00:31,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 18:00:31,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:00:31,397 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:00:31,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:00:31,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-28 18:00:31,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 18:00:31,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:00:31,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-10-28 18:00:31,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:00:31,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:31,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:00:31,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:00:31,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:00:31,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 18:00:31,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:00:31,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:00:31,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:00:31,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 18:00:31,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:00:31,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 18:00:31,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 18:00:31,606 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1757728621] [2020-10-28 18:00:31,606 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 18:00:31,607 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-28 18:00:31,607 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536294135] [2020-10-28 18:00:31,607 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 18:00:31,607 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 18:00:31,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 18:00:31,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-28 18:00:31,608 INFO L87 Difference]: Start difference. First operand 8302 states and 13045 transitions. Second operand 10 states. [2020-10-28 18:00:32,324 WARN L193 SmtUtils]: Spent 651.00 ms on a formula simplification that was a NOOP. DAG size: 284 [2020-10-28 18:00:33,000 WARN L193 SmtUtils]: Spent 634.00 ms on a formula simplification that was a NOOP. DAG size: 282 [2020-10-28 18:00:33,738 WARN L193 SmtUtils]: Spent 670.00 ms on a formula simplification that was a NOOP. DAG size: 288 [2020-10-28 18:00:34,419 WARN L193 SmtUtils]: Spent 656.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2020-10-28 18:00:39,093 WARN L193 SmtUtils]: Spent 628.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2020-10-28 18:00:39,449 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-28 18:00:39,770 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-28 18:00:40,514 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-28 18:00:41,047 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-28 18:00:41,823 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-28 18:00:42,301 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-28 18:00:43,142 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-28 18:00:43,542 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-28 18:00:45,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 18:00:45,066 INFO L93 Difference]: Finished difference Result 26280 states and 41351 transitions. [2020-10-28 18:00:45,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-28 18:00:45,067 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 160 [2020-10-28 18:00:45,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 18:00:45,148 INFO L225 Difference]: With dead ends: 26280 [2020-10-28 18:00:45,149 INFO L226 Difference]: Without dead ends: 18022 [2020-10-28 18:00:45,176 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2020-10-28 18:00:45,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18022 states. [2020-10-28 18:00:46,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18022 to 15831. [2020-10-28 18:00:46,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15831 states. [2020-10-28 18:00:46,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15831 states to 15831 states and 24418 transitions. [2020-10-28 18:00:46,410 INFO L78 Accepts]: Start accepts. Automaton has 15831 states and 24418 transitions. Word has length 160 [2020-10-28 18:00:46,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 18:00:46,411 INFO L481 AbstractCegarLoop]: Abstraction has 15831 states and 24418 transitions. [2020-10-28 18:00:46,411 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-28 18:00:46,411 INFO L276 IsEmpty]: Start isEmpty. Operand 15831 states and 24418 transitions. [2020-10-28 18:00:46,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-10-28 18:00:46,438 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 18:00:46,438 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 18:00:46,438 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-28 18:00:46,438 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 18:00:46,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 18:00:46,439 INFO L82 PathProgramCache]: Analyzing trace with hash -88499586, now seen corresponding path program 1 times [2020-10-28 18:00:46,439 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 18:00:46,439 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1953395689] [2020-10-28 18:00:46,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 18:00:46,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:00:46,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:46,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:46,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:46,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:47,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:51,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:00:51,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 184 [2020-10-28 18:00:51,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 18:00:51,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-28 18:00:51,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:00:51,516 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:00:51,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 18:00:51,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 76 [2020-10-28 18:00:51,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-28 18:00:51,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:00:52,195 WARN L193 SmtUtils]: Spent 625.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-28 18:00:52,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 18:00:52,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:00:52,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:52,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:00:52,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:00:52,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:00:52,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 18:00:52,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:00:52,216 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:00:52,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:00:52,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:00:52,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:00:52,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:00:52,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 18:00:52,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:00:52,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:52,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:00:52,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-28 18:00:52,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:00:52,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-28 18:00:52,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:00:52,309 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:00:52,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:00:52,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:00:52,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-28 18:00:52,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:00:52,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-28 18:00:52,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:00:52,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:52,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:00:52,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:00:52,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:00:52,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:00:52,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:00:52,432 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:00:52,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:00:52,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:00:52,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 18:00:52,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 18:00:52,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-28 18:00:52,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:00:52,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:52,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:00:52,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 18:00:52,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:00:52,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 18:00:52,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:00:52,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:00:52,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:00:52,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:00:52,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 18:00:52,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:00:52,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-28 18:00:52,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:00:52,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:52,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:00:52,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 18:00:52,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:00:52,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 18:00:52,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:00:52,553 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:00:52,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:00:52,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:00:52,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 18:00:52,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:00:52,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-28 18:00:52,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:00:52,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:52,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:00:52,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 18:00:52,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:00:52,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 18:00:52,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:00:52,616 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:00:52,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 18:00:52,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 18:00:52,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 18:00:52,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:00:52,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-28 18:00:52,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:00:52,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:52,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:00:52,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 18:00:52,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:00:52,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 18:00:52,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:00:52,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:00:52,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:00:52,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-28 18:00:52,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:00:52,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:00:52,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-10-28 18:00:52,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:00:52,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:52,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:00:52,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:00:52,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:00:52,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:00:52,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:00:52,728 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:00:52,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:00:52,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 18:00:52,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:00:52,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:00:52,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 18:00:52,781 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1953395689] [2020-10-28 18:00:52,782 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 18:00:52,782 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-28 18:00:52,782 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800074167] [2020-10-28 18:00:52,782 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 18:00:52,783 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 18:00:52,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 18:00:52,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-28 18:00:52,783 INFO L87 Difference]: Start difference. First operand 15831 states and 24418 transitions. Second operand 10 states. [2020-10-28 18:00:53,530 WARN L193 SmtUtils]: Spent 668.00 ms on a formula simplification that was a NOOP. DAG size: 284 [2020-10-28 18:00:56,594 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-28 18:00:57,209 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-28 18:00:57,922 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 18:00:58,216 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-28 18:00:58,709 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-28 18:00:59,080 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 18:01:00,589 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 18:01:01,184 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 18:01:02,181 WARN L193 SmtUtils]: Spent 660.00 ms on a formula simplification that was a NOOP. DAG size: 288 [2020-10-28 18:01:02,382 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-28 18:01:02,615 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-28 18:01:02,952 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-28 18:01:03,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 18:01:03,197 INFO L93 Difference]: Finished difference Result 35421 states and 55156 transitions. [2020-10-28 18:01:03,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-28 18:01:03,198 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 160 [2020-10-28 18:01:03,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 18:01:03,299 INFO L225 Difference]: With dead ends: 35421 [2020-10-28 18:01:03,299 INFO L226 Difference]: Without dead ends: 27560 [2020-10-28 18:01:03,324 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=142, Invalid=364, Unknown=0, NotChecked=0, Total=506 [2020-10-28 18:01:03,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27560 states. [2020-10-28 18:01:05,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27560 to 23563. [2020-10-28 18:01:05,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23563 states. [2020-10-28 18:01:05,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23563 states to 23563 states and 36476 transitions. [2020-10-28 18:01:05,137 INFO L78 Accepts]: Start accepts. Automaton has 23563 states and 36476 transitions. Word has length 160 [2020-10-28 18:01:05,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 18:01:05,137 INFO L481 AbstractCegarLoop]: Abstraction has 23563 states and 36476 transitions. [2020-10-28 18:01:05,137 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-28 18:01:05,138 INFO L276 IsEmpty]: Start isEmpty. Operand 23563 states and 36476 transitions. [2020-10-28 18:01:05,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-10-28 18:01:05,166 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 18:01:05,166 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 18:01:05,166 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-28 18:01:05,166 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 18:01:05,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 18:01:05,167 INFO L82 PathProgramCache]: Analyzing trace with hash 520467413, now seen corresponding path program 1 times [2020-10-28 18:01:05,167 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 18:01:05,167 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [361009326] [2020-10-28 18:01:05,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 18:01:05,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:01:05,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:01:05,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:01:05,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:01:05,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:01:06,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:01:08,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:01:08,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:01:09,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:01:10,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:01:10,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-10-28 18:01:10,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-28 18:01:10,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-28 18:01:10,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:01:10,246 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:01:10,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 18:01:10,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-28 18:01:10,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-28 18:01:10,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:01:10,888 WARN L193 SmtUtils]: Spent 574.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-28 18:01:10,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 18:01:10,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:01:10,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:01:10,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:01:10,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:01:10,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:01:10,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 18:01:10,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:01:10,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:01:10,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:01:10,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:01:10,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:01:10,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:01:10,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 18:01:10,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:01:10,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:01:11,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:01:11,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-28 18:01:11,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:01:11,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-10-28 18:01:11,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:01:11,068 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:01:11,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 18:01:11,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:01:11,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-28 18:01:11,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:01:11,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-28 18:01:11,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:01:11,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:01:11,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:01:11,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:01:11,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:01:11,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:01:11,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:01:11,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:01:11,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:01:11,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:01:11,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 18:01:11,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:01:11,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-28 18:01:11,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:01:11,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:01:11,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:01:11,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 18:01:11,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:01:11,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 18:01:11,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:01:11,181 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:01:11,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:01:11,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:01:11,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 18:01:11,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:01:11,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-28 18:01:11,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:01:11,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:01:11,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:01:11,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 18:01:11,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:01:11,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 18:01:11,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:01:11,243 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:01:11,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:01:11,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:01:11,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 18:01:11,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:01:11,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-28 18:01:11,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:01:11,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:01:11,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:01:11,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-28 18:01:11,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:01:11,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 18:01:11,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:01:11,310 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:01:11,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:01:11,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 18:01:11,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 18:01:11,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:01:11,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-28 18:01:11,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:01:11,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:01:11,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:01:11,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 18:01:11,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:01:11,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 18:01:11,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:01:11,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:01:11,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:01:11,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-28 18:01:11,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:01:11,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:01:11,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-10-28 18:01:11,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:01:11,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:01:11,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:01:11,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:01:11,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:01:11,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:01:11,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:01:11,394 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:01:11,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:01:11,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 18:01:11,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:01:11,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:01:11,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 18:01:11,441 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [361009326] [2020-10-28 18:01:11,441 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 18:01:11,441 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-28 18:01:11,441 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720754638] [2020-10-28 18:01:11,442 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 18:01:11,442 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 18:01:11,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 18:01:11,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-28 18:01:11,442 INFO L87 Difference]: Start difference. First operand 23563 states and 36476 transitions. Second operand 10 states. [2020-10-28 18:01:12,130 WARN L193 SmtUtils]: Spent 619.00 ms on a formula simplification that was a NOOP. DAG size: 284 [2020-10-28 18:01:12,866 WARN L193 SmtUtils]: Spent 696.00 ms on a formula simplification that was a NOOP. DAG size: 282 [2020-10-28 18:01:13,824 WARN L193 SmtUtils]: Spent 678.00 ms on a formula simplification that was a NOOP. DAG size: 288 [2020-10-28 18:01:14,532 WARN L193 SmtUtils]: Spent 682.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2020-10-28 18:01:19,854 WARN L193 SmtUtils]: Spent 666.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2020-10-28 18:01:20,334 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-28 18:01:20,700 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-28 18:01:21,481 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-28 18:01:21,983 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-28 18:01:23,083 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-28 18:01:23,557 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-28 18:01:24,486 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-28 18:01:24,728 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-28 18:01:27,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 18:01:27,850 INFO L93 Difference]: Finished difference Result 76033 states and 118265 transitions. [2020-10-28 18:01:27,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-28 18:01:27,851 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 163 [2020-10-28 18:01:27,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 18:01:28,045 INFO L225 Difference]: With dead ends: 76033 [2020-10-28 18:01:28,045 INFO L226 Difference]: Without dead ends: 53121 [2020-10-28 18:01:28,109 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2020-10-28 18:01:28,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53121 states. [2020-10-28 18:01:31,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53121 to 46126. [2020-10-28 18:01:31,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46126 states. [2020-10-28 18:01:31,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46126 states to 46126 states and 70382 transitions. [2020-10-28 18:01:31,460 INFO L78 Accepts]: Start accepts. Automaton has 46126 states and 70382 transitions. Word has length 163 [2020-10-28 18:01:31,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 18:01:31,461 INFO L481 AbstractCegarLoop]: Abstraction has 46126 states and 70382 transitions. [2020-10-28 18:01:31,461 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-28 18:01:31,461 INFO L276 IsEmpty]: Start isEmpty. Operand 46126 states and 70382 transitions. [2020-10-28 18:01:31,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-10-28 18:01:31,763 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 18:01:31,763 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 18:01:31,763 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-28 18:01:31,763 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 18:01:31,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 18:01:31,767 INFO L82 PathProgramCache]: Analyzing trace with hash 1101324986, now seen corresponding path program 1 times [2020-10-28 18:01:31,767 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 18:01:31,773 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [3597558] [2020-10-28 18:01:31,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 18:01:31,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:01:31,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:01:31,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:01:32,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:01:32,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:01:32,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:01:33,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:01:36,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:01:36,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 188 [2020-10-28 18:01:36,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-28 18:01:36,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-10-28 18:01:36,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:01:36,889 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:01:36,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 18:01:36,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-28 18:01:36,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-10-28 18:01:36,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:01:37,572 WARN L193 SmtUtils]: Spent 625.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-28 18:01:37,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 18:01:37,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:01:37,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:01:37,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:01:37,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:01:37,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:01:37,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 18:01:37,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:01:37,593 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:01:37,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:01:37,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:01:37,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:01:37,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:01:37,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 18:01:37,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:01:37,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:01:37,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:01:37,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-28 18:01:37,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:01:37,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-10-28 18:01:37,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:01:37,716 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:01:37,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 18:01:37,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:01:37,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-28 18:01:37,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:01:37,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-28 18:01:37,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:01:37,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:01:37,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:01:37,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:01:37,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:01:37,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:01:37,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:01:37,779 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:01:37,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:01:37,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:01:37,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 18:01:37,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:01:37,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-28 18:01:37,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:01:37,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:01:37,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:01:37,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 18:01:37,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:01:37,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 18:01:37,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:01:37,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:01:37,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:01:37,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:01:37,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 18:01:37,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:01:37,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-28 18:01:37,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:01:37,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:01:37,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:01:37,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 18:01:37,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:01:37,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 18:01:37,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:01:37,896 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:01:37,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:01:37,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:01:37,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 18:01:37,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:01:37,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-28 18:01:37,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:01:37,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:01:37,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:01:37,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 18:01:37,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:01:37,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 18:01:37,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:01:37,960 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:01:37,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:01:37,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-28 18:01:37,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 18:01:37,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:01:38,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-10-28 18:01:38,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:01:38,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:01:38,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:01:38,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 18:01:38,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:01:38,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 18:01:38,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:01:38,044 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:01:38,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:01:38,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-28 18:01:38,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:01:38,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:01:38,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-28 18:01:38,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:01:38,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:01:38,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:01:38,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:01:38,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:01:38,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:01:38,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:01:38,050 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:01:38,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:01:38,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 18:01:38,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:01:38,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:01:38,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 18:01:38,099 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [3597558] [2020-10-28 18:01:38,099 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 18:01:38,099 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-28 18:01:38,099 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187301766] [2020-10-28 18:01:38,100 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 18:01:38,100 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 18:01:38,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 18:01:38,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-28 18:01:38,101 INFO L87 Difference]: Start difference. First operand 46126 states and 70382 transitions. Second operand 10 states. [2020-10-28 18:01:38,828 WARN L193 SmtUtils]: Spent 669.00 ms on a formula simplification that was a NOOP. DAG size: 284 [2020-10-28 18:01:39,504 WARN L193 SmtUtils]: Spent 635.00 ms on a formula simplification that was a NOOP. DAG size: 282 [2020-10-28 18:01:40,277 WARN L193 SmtUtils]: Spent 682.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2020-10-28 18:01:40,992 WARN L193 SmtUtils]: Spent 697.00 ms on a formula simplification that was a NOOP. DAG size: 288 [2020-10-28 18:01:47,312 WARN L193 SmtUtils]: Spent 629.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2020-10-28 18:01:47,718 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-28 18:01:48,059 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-28 18:01:48,779 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-28 18:01:49,262 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-28 18:01:50,223 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-28 18:01:50,680 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-28 18:01:51,570 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-28 18:01:51,824 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-28 18:01:55,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 18:01:55,727 INFO L93 Difference]: Finished difference Result 149384 states and 228495 transitions. [2020-10-28 18:01:55,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-28 18:01:55,728 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 164 [2020-10-28 18:01:55,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 18:01:56,097 INFO L225 Difference]: With dead ends: 149384 [2020-10-28 18:01:56,097 INFO L226 Difference]: Without dead ends: 104305 [2020-10-28 18:01:56,458 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2020-10-28 18:01:56,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104305 states. [2020-10-28 18:02:02,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104305 to 91062. [2020-10-28 18:02:02,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91062 states. [2020-10-28 18:02:03,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91062 states to 91062 states and 136915 transitions. [2020-10-28 18:02:03,210 INFO L78 Accepts]: Start accepts. Automaton has 91062 states and 136915 transitions. Word has length 164 [2020-10-28 18:02:03,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 18:02:03,211 INFO L481 AbstractCegarLoop]: Abstraction has 91062 states and 136915 transitions. [2020-10-28 18:02:03,211 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-28 18:02:03,211 INFO L276 IsEmpty]: Start isEmpty. Operand 91062 states and 136915 transitions. [2020-10-28 18:02:03,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-10-28 18:02:03,272 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 18:02:03,272 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 18:02:03,272 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-28 18:02:03,272 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 18:02:03,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 18:02:03,273 INFO L82 PathProgramCache]: Analyzing trace with hash -1733286384, now seen corresponding path program 1 times [2020-10-28 18:02:03,273 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 18:02:03,273 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [357733006] [2020-10-28 18:02:03,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 18:02:03,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:02:03,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:02:03,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:02:03,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:02:03,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:02:04,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:02:06,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:02:06,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:02:08,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:02:08,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:02:08,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-28 18:02:08,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-28 18:02:08,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-28 18:02:08,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:02:08,350 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:02:08,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 18:02:08,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-28 18:02:08,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-28 18:02:08,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:02:09,000 WARN L193 SmtUtils]: Spent 596.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-28 18:02:09,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 18:02:09,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:02:09,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:02:09,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:02:09,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:02:09,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:02:09,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 18:02:09,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:02:09,017 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:02:09,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:02:09,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:02:09,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:02:09,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:02:09,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 18:02:09,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:02:09,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:02:09,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:02:09,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-28 18:02:09,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:02:09,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-28 18:02:09,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:02:09,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:02:09,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 18:02:09,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:02:09,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-28 18:02:09,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:02:09,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-28 18:02:09,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:02:09,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:02:09,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:02:09,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:02:09,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:02:09,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:02:09,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:02:09,245 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:02:09,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:02:09,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:02:09,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 18:02:09,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:02:09,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-28 18:02:09,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:02:09,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:02:09,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:02:09,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 18:02:09,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:02:09,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 18:02:09,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:02:09,299 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:02:09,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:02:09,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:02:09,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 18:02:09,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:02:09,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-28 18:02:09,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:02:09,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:02:09,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:02:09,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 18:02:09,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:02:09,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 18:02:09,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:02:09,360 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:02:09,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:02:09,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:02:09,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 18:02:09,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:02:09,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-28 18:02:09,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:02:09,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:02:09,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:02:09,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 18:02:09,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:02:09,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 18:02:09,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:02:09,421 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:02:09,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:02:09,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 18:02:09,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 18:02:09,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:02:09,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-28 18:02:09,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:02:09,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:02:09,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:02:09,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 18:02:09,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:02:09,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 18:02:09,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:02:09,503 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:02:09,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:02:09,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-28 18:02:09,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:02:09,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:02:09,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-28 18:02:09,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:02:09,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:02:09,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:02:09,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:02:09,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:02:09,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:02:09,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:02:09,508 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:02:09,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:02:09,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 18:02:09,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:02:09,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:02:09,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 18:02:09,558 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [357733006] [2020-10-28 18:02:09,559 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 18:02:09,559 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-28 18:02:09,559 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005113194] [2020-10-28 18:02:09,559 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 18:02:09,560 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 18:02:09,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 18:02:09,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-28 18:02:09,560 INFO L87 Difference]: Start difference. First operand 91062 states and 136915 transitions. Second operand 10 states. [2020-10-28 18:02:10,254 WARN L193 SmtUtils]: Spent 635.00 ms on a formula simplification that was a NOOP. DAG size: 284 [2020-10-28 18:02:10,891 WARN L193 SmtUtils]: Spent 600.00 ms on a formula simplification that was a NOOP. DAG size: 282 [2020-10-28 18:02:11,794 WARN L193 SmtUtils]: Spent 616.00 ms on a formula simplification that was a NOOP. DAG size: 288 [2020-10-28 18:02:12,450 WARN L193 SmtUtils]: Spent 633.00 ms on a formula simplification that was a NOOP. DAG size: 286