/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.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=0.4 --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 -i ../../../trunk/examples/svcomp/eca-rers2012/Problem05_label59.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 01:27:38,742 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 01:27:38,745 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 01:27:38,768 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 01:27:38,768 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 01:27:38,769 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 01:27:38,771 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 01:27:38,772 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 01:27:38,774 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 01:27:38,775 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 01:27:38,776 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 01:27:38,777 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 01:27:38,777 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 01:27:38,778 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 01:27:38,779 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 01:27:38,780 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 01:27:38,781 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 01:27:38,782 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 01:27:38,784 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 01:27:38,786 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 01:27:38,787 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 01:27:38,788 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 01:27:38,790 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 01:27:38,790 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 01:27:38,793 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 01:27:38,793 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 01:27:38,794 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 01:27:38,794 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 01:27:38,795 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 01:27:38,796 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 01:27:38,796 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 01:27:38,797 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 01:27:38,797 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 01:27:38,800 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 01:27:38,802 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 01:27:38,802 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 01:27:38,802 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 01:27:38,803 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 01:27:38,803 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 01:27:38,804 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 01:27:38,805 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 01:27:38,806 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 [2020-10-14 01:27:38,856 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 01:27:38,856 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 01:27:38,858 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 01:27:38,858 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 01:27:38,861 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 01:27:38,861 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 01:27:38,862 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 01:27:38,862 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 01:27:38,862 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 01:27:38,862 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 01:27:38,862 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 01:27:38,863 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 01:27:38,863 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 01:27:38,863 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 01:27:38,863 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 01:27:38,863 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 01:27:38,863 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 01:27:38,864 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 01:27:38,864 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 01:27:38,867 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 01:27:38,867 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 01:27:38,868 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 01:27:38,868 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 01:27:38,871 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 01:27:38,871 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 01:27:38,871 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 01:27:38,872 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 01:27:38,872 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 01:27:38,872 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 01:27:38,872 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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=0.4;log-additional-information=true;unknown-allowed=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=0.4;log-additional-information=true;unknown-allowed=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=0.4;log-additional-information=true;unknown-allowed=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=0.4;log-additional-information=true;unknown-allowed=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=0.4;log-additional-information=true;unknown-allowed=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=0.4;log-additional-information=true;unknown-allowed=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=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 01:27:39,231 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 01:27:39,248 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 01:27:39,251 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 01:27:39,253 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 01:27:39,253 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 01:27:39,254 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem05_label59.c [2020-10-14 01:27:39,319 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f799b41b3/bb73bcb330de4002a88cd54f9d674f13/FLAG809a0eade [2020-10-14 01:27:40,186 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 01:27:40,187 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem05_label59.c [2020-10-14 01:27:40,230 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f799b41b3/bb73bcb330de4002a88cd54f9d674f13/FLAG809a0eade [2020-10-14 01:27:40,661 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f799b41b3/bb73bcb330de4002a88cd54f9d674f13 [2020-10-14 01:27:40,671 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 01:27:40,673 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 01:27:40,674 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 01:27:40,675 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 01:27:40,679 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 01:27:40,680 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 01:27:40" (1/1) ... [2020-10-14 01:27:40,684 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fdab4ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:27:40, skipping insertion in model container [2020-10-14 01:27:40,684 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 01:27:40" (1/1) ... [2020-10-14 01:27:40,694 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 01:27:40,974 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 01:27:43,580 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 01:27:43,586 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 01:27:44,934 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 01:27:44,991 INFO L208 MainTranslator]: Completed translation [2020-10-14 01:27:44,992 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:27:44 WrapperNode [2020-10-14 01:27:44,992 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 01:27:44,992 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 01:27:44,993 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 01:27:44,993 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 01:27:45,008 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:27:44" (1/1) ... [2020-10-14 01:27:45,011 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:27:44" (1/1) ... [2020-10-14 01:27:45,117 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:27:44" (1/1) ... [2020-10-14 01:27:45,118 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:27:44" (1/1) ... [2020-10-14 01:27:45,325 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:27:44" (1/1) ... [2020-10-14 01:27:45,403 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:27:44" (1/1) ... [2020-10-14 01:27:45,481 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:27:44" (1/1) ... [2020-10-14 01:27:45,717 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 01:27:45,718 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 01:27:45,718 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 01:27:45,718 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 01:27:45,721 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:27:44" (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 [2020-10-14 01:27:45,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 01:27:45,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 01:27:45,803 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 01:27:45,803 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 01:27:45,803 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-14 01:27:45,804 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2020-10-14 01:27:45,804 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2020-10-14 01:27:45,805 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2020-10-14 01:27:45,805 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output7 [2020-10-14 01:27:45,806 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output8 [2020-10-14 01:27:45,806 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 01:27:45,806 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 01:27:45,806 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 01:27:45,806 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-14 01:27:45,806 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2020-10-14 01:27:45,808 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2020-10-14 01:27:45,808 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2020-10-14 01:27:45,808 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output7 [2020-10-14 01:27:45,809 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output8 [2020-10-14 01:27:45,809 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 01:27:45,809 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 01:27:45,810 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 01:27:45,810 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 01:27:45,811 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 01:27:45,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 01:27:54,311 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 01:27:54,312 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 01:27:54,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 01:27:54 BoogieIcfgContainer [2020-10-14 01:27:54,329 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 01:27:54,331 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 01:27:54,331 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 01:27:54,334 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 01:27:54,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 01:27:40" (1/3) ... [2020-10-14 01:27:54,336 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36c15dd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 01:27:54, skipping insertion in model container [2020-10-14 01:27:54,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:27:44" (2/3) ... [2020-10-14 01:27:54,336 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36c15dd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 01:27:54, skipping insertion in model container [2020-10-14 01:27:54,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 01:27:54" (3/3) ... [2020-10-14 01:27:54,338 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem05_label59.c [2020-10-14 01:27:54,350 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 01:27:54,360 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 01:27:54,375 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 01:27:54,409 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 01:27:54,410 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 01:27:54,410 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 01:27:54,410 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 01:27:54,410 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 01:27:54,410 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 01:27:54,410 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 01:27:54,410 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 01:27:54,463 INFO L276 IsEmpty]: Start isEmpty. Operand 2222 states. [2020-10-14 01:27:54,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1680 [2020-10-14 01:27:54,581 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 01:27:54,584 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 01:27:54,585 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 01:27:54,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 01:27:54,593 INFO L82 PathProgramCache]: Analyzing trace with hash -1436661424, now seen corresponding path program 1 times [2020-10-14 01:27:54,603 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 01:27:54,603 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [898695347] [2020-10-14 01:27:54,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 01:27:55,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:27:56,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:28:01,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:28:01,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1701 [2020-10-14 01:28:01,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:28:01,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5399 [2020-10-14 01:28:01,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:28:01,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:28:01,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-14 01:28:01,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 01:28:01,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1695 [2020-10-14 01:28:01,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-14 01:28:02,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 01:28:02,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:28:02,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:28:02,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:28:02,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 01:28:02,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:28:02,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-14 01:28:02,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:28:02,997 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:28:02,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:28:02,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:28:02,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 01:28:02,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:28:04,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 01:28:04,916 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [898695347] [2020-10-14 01:28:04,918 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 01:28:04,918 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 01:28:04,919 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724580420] [2020-10-14 01:28:04,928 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 01:28:04,929 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 01:28:04,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 01:28:04,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 01:28:04,941 INFO L87 Difference]: Start difference. First operand 2222 states. Second operand 4 states. [2020-10-14 01:28:21,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 01:28:21,423 INFO L93 Difference]: Finished difference Result 6360 states and 11961 transitions. [2020-10-14 01:28:21,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 01:28:21,426 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1679 [2020-10-14 01:28:21,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 01:28:21,491 INFO L225 Difference]: With dead ends: 6360 [2020-10-14 01:28:21,492 INFO L226 Difference]: Without dead ends: 4074 [2020-10-14 01:28:21,505 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 01:28:21,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4074 states. [2020-10-14 01:28:21,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4074 to 4004. [2020-10-14 01:28:21,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4004 states. [2020-10-14 01:28:21,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4004 states to 4004 states and 6504 transitions. [2020-10-14 01:28:21,765 INFO L78 Accepts]: Start accepts. Automaton has 4004 states and 6504 transitions. Word has length 1679 [2020-10-14 01:28:21,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 01:28:21,769 INFO L479 AbstractCegarLoop]: Abstraction has 4004 states and 6504 transitions. [2020-10-14 01:28:21,769 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 01:28:21,770 INFO L276 IsEmpty]: Start isEmpty. Operand 4004 states and 6504 transitions. [2020-10-14 01:28:21,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1691 [2020-10-14 01:28:21,896 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 01:28:21,898 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 01:28:21,898 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 01:28:21,898 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 01:28:21,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 01:28:21,900 INFO L82 PathProgramCache]: Analyzing trace with hash 45826207, now seen corresponding path program 1 times [2020-10-14 01:28:21,900 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 01:28:21,901 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [628339383] [2020-10-14 01:28:21,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 01:28:22,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:28:22,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:28:23,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:28:27,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:28:27,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1714 [2020-10-14 01:28:27,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 01:28:27,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5165 [2020-10-14 01:28:27,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:28:27,624 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:28:27,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 01:28:27,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 01:28:27,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-14 01:28:27,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:28:28,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 01:28:28,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:28:28,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:28:28,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:28:28,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 01:28:28,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:28:28,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 01:28:28,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:28:28,175 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:28:28,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:28:28,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:28:28,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 01:28:28,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-10-14 01:28:28,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 01:28:28,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:28:28,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:28:28,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:28:28,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 01:28:28,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:28:28,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-14 01:28:28,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:28:28,274 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:28:28,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:28:28,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 01:28:28,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 01:28:28,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:28:29,355 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 01:28:29,356 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [628339383] [2020-10-14 01:28:29,356 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 01:28:29,356 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 01:28:29,356 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411597759] [2020-10-14 01:28:29,361 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 01:28:29,361 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 01:28:29,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 01:28:29,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 01:28:29,362 INFO L87 Difference]: Start difference. First operand 4004 states and 6504 transitions. Second operand 7 states. [2020-10-14 01:28:52,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 01:28:52,003 INFO L93 Difference]: Finished difference Result 11774 states and 19281 transitions. [2020-10-14 01:28:52,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 01:28:52,004 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1690 [2020-10-14 01:28:52,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 01:28:52,045 INFO L225 Difference]: With dead ends: 11774 [2020-10-14 01:28:52,045 INFO L226 Difference]: Without dead ends: 7776 [2020-10-14 01:28:52,056 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 01:28:52,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7776 states. [2020-10-14 01:28:52,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7776 to 7654. [2020-10-14 01:28:52,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7654 states. [2020-10-14 01:28:52,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7654 states to 7654 states and 11245 transitions. [2020-10-14 01:28:52,266 INFO L78 Accepts]: Start accepts. Automaton has 7654 states and 11245 transitions. Word has length 1690 [2020-10-14 01:28:52,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 01:28:52,267 INFO L479 AbstractCegarLoop]: Abstraction has 7654 states and 11245 transitions. [2020-10-14 01:28:52,267 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 01:28:52,267 INFO L276 IsEmpty]: Start isEmpty. Operand 7654 states and 11245 transitions. [2020-10-14 01:28:52,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1702 [2020-10-14 01:28:52,322 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 01:28:52,324 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 01:28:52,324 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 01:28:52,324 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 01:28:52,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 01:28:52,325 INFO L82 PathProgramCache]: Analyzing trace with hash -2028031409, now seen corresponding path program 1 times [2020-10-14 01:28:52,326 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 01:28:52,326 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [100474802] [2020-10-14 01:28:52,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 01:28:52,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:28:53,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:28:53,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:28:54,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:28:57,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:28:57,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1725 [2020-10-14 01:28:57,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 01:28:57,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5052 [2020-10-14 01:28:57,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:28:57,842 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:28:57,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 01:28:57,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 01:28:57,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-14 01:28:57,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:28:58,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 01:28:58,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:28:58,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:28:58,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:28:58,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 01:28:58,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:28:58,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 01:28:58,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:28:58,864 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:28:58,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:28:58,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:28:58,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 01:28:58,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:28:58,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 01:28:58,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:28:58,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:28:58,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:28:58,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-14 01:28:58,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:28:58,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-14 01:28:58,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:28:58,972 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:28:58,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:28:58,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 01:28:58,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 01:28:58,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:29:00,291 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 01:29:00,292 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [100474802] [2020-10-14 01:29:00,292 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 01:29:00,292 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 01:29:00,293 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199212967] [2020-10-14 01:29:00,295 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 01:29:00,295 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 01:29:00,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 01:29:00,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 01:29:00,296 INFO L87 Difference]: Start difference. First operand 7654 states and 11245 transitions. Second operand 7 states. [2020-10-14 01:29:22,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 01:29:22,917 INFO L93 Difference]: Finished difference Result 19441 states and 28378 transitions. [2020-10-14 01:29:22,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 01:29:22,918 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1701 [2020-10-14 01:29:22,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 01:29:22,984 INFO L225 Difference]: With dead ends: 19441 [2020-10-14 01:29:22,984 INFO L226 Difference]: Without dead ends: 11793 [2020-10-14 01:29:23,007 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-14 01:29:23,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11793 states. [2020-10-14 01:29:23,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11793 to 11538. [2020-10-14 01:29:23,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11538 states. [2020-10-14 01:29:23,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11538 states to 11538 states and 15636 transitions. [2020-10-14 01:29:23,277 INFO L78 Accepts]: Start accepts. Automaton has 11538 states and 15636 transitions. Word has length 1701 [2020-10-14 01:29:23,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 01:29:23,277 INFO L479 AbstractCegarLoop]: Abstraction has 11538 states and 15636 transitions. [2020-10-14 01:29:23,278 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 01:29:23,278 INFO L276 IsEmpty]: Start isEmpty. Operand 11538 states and 15636 transitions. [2020-10-14 01:29:23,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1734 [2020-10-14 01:29:23,392 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 01:29:23,393 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 01:29:23,393 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 01:29:23,393 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 01:29:23,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 01:29:23,395 INFO L82 PathProgramCache]: Analyzing trace with hash 1090226205, now seen corresponding path program 1 times [2020-10-14 01:29:23,396 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 01:29:23,396 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [527856162] [2020-10-14 01:29:23,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 01:29:23,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:29:23,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:29:25,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:29:28,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:29:28,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1757 [2020-10-14 01:29:28,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 01:29:28,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5267 [2020-10-14 01:29:28,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:29:28,807 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:29:28,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 01:29:28,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 01:29:28,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-14 01:29:28,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:29:29,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 01:29:29,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:29:29,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:29:29,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:29:29,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 01:29:29,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:29:29,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 01:29:29,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:29:29,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:29:29,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:29:29,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:29:29,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 01:29:29,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:29:29,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 01:29:29,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:29:29,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:29:29,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:29:29,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-14 01:29:29,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:29:29,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-14 01:29:29,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:29:29,409 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:29:29,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:29:29,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 01:29:29,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-14 01:29:29,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:29:30,817 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 01:29:30,818 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [527856162] [2020-10-14 01:29:30,818 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 01:29:30,818 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 01:29:30,819 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303237350] [2020-10-14 01:29:30,821 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 01:29:30,821 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 01:29:30,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 01:29:30,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 01:29:30,822 INFO L87 Difference]: Start difference. First operand 11538 states and 15636 transitions. Second operand 7 states. [2020-10-14 01:29:55,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 01:29:55,474 INFO L93 Difference]: Finished difference Result 35545 states and 50204 transitions. [2020-10-14 01:29:55,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 01:29:55,476 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1733 [2020-10-14 01:29:55,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 01:29:55,571 INFO L225 Difference]: With dead ends: 35545 [2020-10-14 01:29:55,572 INFO L226 Difference]: Without dead ends: 24013 [2020-10-14 01:29:55,605 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 01:29:55,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24013 states. [2020-10-14 01:29:56,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24013 to 23185. [2020-10-14 01:29:56,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23185 states. [2020-10-14 01:29:56,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23185 states to 23185 states and 30132 transitions. [2020-10-14 01:29:56,207 INFO L78 Accepts]: Start accepts. Automaton has 23185 states and 30132 transitions. Word has length 1733 [2020-10-14 01:29:56,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 01:29:56,208 INFO L479 AbstractCegarLoop]: Abstraction has 23185 states and 30132 transitions. [2020-10-14 01:29:56,208 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 01:29:56,208 INFO L276 IsEmpty]: Start isEmpty. Operand 23185 states and 30132 transitions. [2020-10-14 01:29:56,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1793 [2020-10-14 01:29:56,302 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 01:29:56,303 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 01:29:56,304 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 01:29:56,304 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 01:29:56,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 01:29:56,305 INFO L82 PathProgramCache]: Analyzing trace with hash -539021455, now seen corresponding path program 1 times [2020-10-14 01:29:56,305 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 01:29:56,305 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [389647602] [2020-10-14 01:29:56,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 01:29:56,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:29:57,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:30:01,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:30:02,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:30:02,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1816 [2020-10-14 01:30:02,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 01:30:02,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5217 [2020-10-14 01:30:02,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:30:02,012 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:30:02,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-14 01:30:02,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 123 [2020-10-14 01:30:02,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1692 [2020-10-14 01:30:02,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:30:04,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 01:30:04,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:30:04,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:30:04,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:30:04,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 01:30:04,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:30:04,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 01:30:04,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:30:04,440 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:30:04,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:30:04,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:30:04,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:30:04,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:30:04,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 01:30:04,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:30:04,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:30:04,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:30:04,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-14 01:30:04,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:30:04,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-14 01:30:04,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:30:04,566 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:30:04,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:30:04,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:30:04,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-14 01:30:04,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:30:06,926 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 109 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 01:30:06,927 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [389647602] [2020-10-14 01:30:06,927 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 01:30:06,927 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 01:30:06,927 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946706843] [2020-10-14 01:30:06,929 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 01:30:06,929 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 01:30:06,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 01:30:06,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 01:30:06,929 INFO L87 Difference]: Start difference. First operand 23185 states and 30132 transitions. Second operand 5 states. [2020-10-14 01:30:27,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 01:30:27,080 INFO L93 Difference]: Finished difference Result 54073 states and 74523 transitions. [2020-10-14 01:30:27,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 01:30:27,081 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1792 [2020-10-14 01:30:27,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 01:30:27,185 INFO L225 Difference]: With dead ends: 54073 [2020-10-14 01:30:27,185 INFO L226 Difference]: Without dead ends: 30894 [2020-10-14 01:30:27,237 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 01:30:27,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30894 states. [2020-10-14 01:30:27,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30894 to 30694. [2020-10-14 01:30:27,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30694 states. [2020-10-14 01:30:27,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30694 states to 30694 states and 40890 transitions. [2020-10-14 01:30:27,912 INFO L78 Accepts]: Start accepts. Automaton has 30694 states and 40890 transitions. Word has length 1792 [2020-10-14 01:30:27,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 01:30:27,914 INFO L479 AbstractCegarLoop]: Abstraction has 30694 states and 40890 transitions. [2020-10-14 01:30:27,914 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 01:30:27,914 INFO L276 IsEmpty]: Start isEmpty. Operand 30694 states and 40890 transitions. [2020-10-14 01:30:28,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1808 [2020-10-14 01:30:28,016 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 01:30:28,018 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 01:30:28,018 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 01:30:28,018 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 01:30:28,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 01:30:28,019 INFO L82 PathProgramCache]: Analyzing trace with hash 508476644, now seen corresponding path program 1 times [2020-10-14 01:30:28,020 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 01:30:28,020 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [332219710] [2020-10-14 01:30:28,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 01:30:28,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:30:28,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:30:28,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:30:33,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:30:33,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:30:33,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1833 [2020-10-14 01:30:33,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 01:30:33,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5114 [2020-10-14 01:30:33,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:30:33,310 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:30:33,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:30:33,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 123 [2020-10-14 01:30:33,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-14 01:30:33,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:30:33,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 01:30:33,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:30:33,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:30:33,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:30:33,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 01:30:33,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:30:33,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 01:30:33,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:30:33,587 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:30:33,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:30:33,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:30:33,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:30:33,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:30:33,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 01:30:33,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:30:33,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:30:33,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:30:33,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-14 01:30:33,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:30:33,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-14 01:30:33,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:30:33,682 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:30:33,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:30:33,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:30:33,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-14 01:30:33,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:30:33,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-14 01:30:33,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:30:33,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:30:33,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:30:33,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 01:30:33,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:30:33,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 01:30:33,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:30:33,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:30:33,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:30:33,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 01:30:33,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-14 01:30:33,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:30:35,098 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 130 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 01:30:35,098 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [332219710] [2020-10-14 01:30:35,099 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 01:30:35,099 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 01:30:35,099 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882870041] [2020-10-14 01:30:35,101 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 01:30:35,101 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 01:30:35,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 01:30:35,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 01:30:35,101 INFO L87 Difference]: Start difference. First operand 30694 states and 40890 transitions. Second operand 7 states. [2020-10-14 01:30:56,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 01:30:56,288 INFO L93 Difference]: Finished difference Result 76396 states and 103569 transitions. [2020-10-14 01:30:56,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 01:30:56,295 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1807 [2020-10-14 01:30:56,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 01:30:56,421 INFO L225 Difference]: With dead ends: 76396 [2020-10-14 01:30:56,421 INFO L226 Difference]: Without dead ends: 45708 [2020-10-14 01:30:56,474 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 01:30:56,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45708 states. [2020-10-14 01:30:57,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45708 to 45430. [2020-10-14 01:30:57,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45430 states. [2020-10-14 01:30:57,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45430 states to 45430 states and 55682 transitions. [2020-10-14 01:30:57,309 INFO L78 Accepts]: Start accepts. Automaton has 45430 states and 55682 transitions. Word has length 1807 [2020-10-14 01:30:57,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 01:30:57,309 INFO L479 AbstractCegarLoop]: Abstraction has 45430 states and 55682 transitions. [2020-10-14 01:30:57,309 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 01:30:57,310 INFO L276 IsEmpty]: Start isEmpty. Operand 45430 states and 55682 transitions. [2020-10-14 01:30:57,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1850 [2020-10-14 01:30:57,408 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 01:30:57,410 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 01:30:57,410 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 01:30:57,410 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 01:30:57,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 01:30:57,411 INFO L82 PathProgramCache]: Analyzing trace with hash 1408279030, now seen corresponding path program 1 times [2020-10-14 01:30:57,412 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 01:30:57,412 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [474650123] [2020-10-14 01:30:57,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 01:30:57,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:30:57,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:30:57,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:31:00,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:31:02,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:31:02,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1875 [2020-10-14 01:31:02,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 01:31:02,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5042 [2020-10-14 01:31:02,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:31:02,609 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:31:02,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:31:02,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 123 [2020-10-14 01:31:02,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-14 01:31:02,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:31:02,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 01:31:02,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:31:02,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:31:02,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:31:02,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 01:31:02,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:31:02,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 01:31:02,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:31:02,910 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:31:02,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:31:02,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:31:02,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:31:02,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:31:02,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 01:31:02,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:31:02,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:31:03,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:31:03,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-14 01:31:03,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:31:03,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-14 01:31:03,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:31:03,035 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:31:03,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:31:03,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:31:03,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-14 01:31:03,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:31:03,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-14 01:31:03,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:31:03,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:31:03,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:31:03,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-14 01:31:03,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:31:03,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-14 01:31:03,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:31:03,120 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:31:03,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:31:03,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 01:31:03,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-14 01:31:03,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:31:04,717 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 218 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 01:31:04,718 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [474650123] [2020-10-14 01:31:04,718 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 01:31:04,718 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 01:31:04,718 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694488219] [2020-10-14 01:31:04,720 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 01:31:04,721 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 01:31:04,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 01:31:04,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 01:31:04,721 INFO L87 Difference]: Start difference. First operand 45430 states and 55682 transitions. Second operand 7 states.