/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 SingleStatement --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=LOWLEXORDER --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/systemc/token_ring.02.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 21:53:04,681 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 21:53:04,685 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 21:53:04,731 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 21:53:04,732 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 21:53:04,743 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 21:53:04,746 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 21:53:04,750 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 21:53:04,752 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 21:53:04,756 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 21:53:04,757 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 21:53:04,758 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 21:53:04,758 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 21:53:04,762 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 21:53:04,764 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 21:53:04,765 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 21:53:04,767 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 21:53:04,768 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 21:53:04,769 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 21:53:04,778 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 21:53:04,780 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 21:53:04,782 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 21:53:04,783 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 21:53:04,784 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 21:53:04,787 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 21:53:04,788 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 21:53:04,788 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 21:53:04,791 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 21:53:04,792 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 21:53:04,793 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 21:53:04,793 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 21:53:04,794 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 21:53:04,795 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 21:53:04,795 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 21:53:04,797 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 21:53:04,797 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 21:53:04,798 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 21:53:04,798 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 21:53:04,798 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 21:53:04,799 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 21:53:04,801 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 21:53:04,802 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 [2020-09-24 21:53:04,853 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 21:53:04,853 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 21:53:04,856 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 21:53:04,856 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 21:53:04,856 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 21:53:04,856 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 21:53:04,857 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 21:53:04,857 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 21:53:04,857 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 21:53:04,857 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 21:53:04,858 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 21:53:04,859 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 21:53:04,859 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 21:53:04,859 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 21:53:04,859 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 21:53:04,860 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 21:53:04,860 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 21:53:04,860 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 21:53:04,860 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 21:53:04,861 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 21:53:04,861 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 21:53:04,861 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:53:04,861 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 21:53:04,861 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 21:53:04,862 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 21:53:04,862 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 21:53:04,862 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 21:53:04,862 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 21:53:04,862 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 21:53:04,863 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 -> SingleStatement 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=LOWLEXORDER;log-additional-information=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=LOWLEXORDER;log-additional-information=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=LOWLEXORDER;log-additional-information=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=LOWLEXORDER;log-additional-information=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=LOWLEXORDER;log-additional-information=true; [2020-09-24 21:53:05,427 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 21:53:05,452 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 21:53:05,458 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 21:53:05,461 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 21:53:05,461 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 21:53:05,462 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/token_ring.02.cil-2.c [2020-09-24 21:53:05,544 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0d9063a92/6dd706264c1d43bcb2a32d5585052cf1/FLAG5233e6c71 [2020-09-24 21:53:06,132 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 21:53:06,133 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/systemc/token_ring.02.cil-2.c [2020-09-24 21:53:06,151 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0d9063a92/6dd706264c1d43bcb2a32d5585052cf1/FLAG5233e6c71 [2020-09-24 21:53:06,396 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0d9063a92/6dd706264c1d43bcb2a32d5585052cf1 [2020-09-24 21:53:06,409 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 21:53:06,417 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 21:53:06,421 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 21:53:06,421 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 21:53:06,425 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 21:53:06,426 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:53:06" (1/1) ... [2020-09-24 21:53:06,431 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19cf7fa2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:53:06, skipping insertion in model container [2020-09-24 21:53:06,431 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:53:06" (1/1) ... [2020-09-24 21:53:06,441 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 21:53:06,486 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 21:53:06,829 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:53:06,841 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 21:53:07,016 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:53:07,039 INFO L208 MainTranslator]: Completed translation [2020-09-24 21:53:07,040 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:53:07 WrapperNode [2020-09-24 21:53:07,040 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 21:53:07,041 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 21:53:07,041 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 21:53:07,042 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 21:53:07,058 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:53:07" (1/1) ... [2020-09-24 21:53:07,058 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:53:07" (1/1) ... [2020-09-24 21:53:07,068 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:53:07" (1/1) ... [2020-09-24 21:53:07,068 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:53:07" (1/1) ... [2020-09-24 21:53:07,079 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:53:07" (1/1) ... [2020-09-24 21:53:07,093 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:53:07" (1/1) ... [2020-09-24 21:53:07,096 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:53:07" (1/1) ... [2020-09-24 21:53:07,099 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 21:53:07,100 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 21:53:07,100 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 21:53:07,100 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 21:53:07,102 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:53:07" (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 [2020-09-24 21:53:07,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 21:53:07,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 21:53:07,191 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2020-09-24 21:53:07,191 INFO L138 BoogieDeclarations]: Found implementation of procedure master [2020-09-24 21:53:07,191 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit1 [2020-09-24 21:53:07,192 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit2 [2020-09-24 21:53:07,192 INFO L138 BoogieDeclarations]: Found implementation of procedure is_master_triggered [2020-09-24 21:53:07,192 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit1_triggered [2020-09-24 21:53:07,193 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit2_triggered [2020-09-24 21:53:07,193 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2020-09-24 21:53:07,193 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2020-09-24 21:53:07,193 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2020-09-24 21:53:07,193 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2020-09-24 21:53:07,193 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2020-09-24 21:53:07,194 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2020-09-24 21:53:07,195 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2020-09-24 21:53:07,196 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2020-09-24 21:53:07,196 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2020-09-24 21:53:07,196 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2020-09-24 21:53:07,196 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2020-09-24 21:53:07,196 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2020-09-24 21:53:07,196 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2020-09-24 21:53:07,197 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 21:53:07,197 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 21:53:07,198 INFO L130 BoogieDeclarations]: Found specification of procedure error [2020-09-24 21:53:07,198 INFO L130 BoogieDeclarations]: Found specification of procedure is_master_triggered [2020-09-24 21:53:07,198 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit1_triggered [2020-09-24 21:53:07,198 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit2_triggered [2020-09-24 21:53:07,199 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2020-09-24 21:53:07,199 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 21:53:07,199 INFO L130 BoogieDeclarations]: Found specification of procedure master [2020-09-24 21:53:07,199 INFO L130 BoogieDeclarations]: Found specification of procedure transmit1 [2020-09-24 21:53:07,199 INFO L130 BoogieDeclarations]: Found specification of procedure transmit2 [2020-09-24 21:53:07,199 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2020-09-24 21:53:07,200 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2020-09-24 21:53:07,200 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2020-09-24 21:53:07,200 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2020-09-24 21:53:07,200 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2020-09-24 21:53:07,200 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2020-09-24 21:53:07,200 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2020-09-24 21:53:07,201 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2020-09-24 21:53:07,201 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2020-09-24 21:53:07,201 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2020-09-24 21:53:07,201 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2020-09-24 21:53:07,201 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2020-09-24 21:53:07,201 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 21:53:07,201 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 21:53:07,202 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 21:53:07,904 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 21:53:07,905 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 21:53:07,913 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:53:07 BoogieIcfgContainer [2020-09-24 21:53:07,914 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 21:53:07,915 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 21:53:07,916 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 21:53:07,920 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 21:53:07,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 09:53:06" (1/3) ... [2020-09-24 21:53:07,921 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f9afe8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:53:07, skipping insertion in model container [2020-09-24 21:53:07,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:53:07" (2/3) ... [2020-09-24 21:53:07,922 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f9afe8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:53:07, skipping insertion in model container [2020-09-24 21:53:07,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:53:07" (3/3) ... [2020-09-24 21:53:07,925 INFO L109 eAbstractionObserver]: Analyzing ICFG token_ring.02.cil-2.c [2020-09-24 21:53:07,938 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 21:53:07,950 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 21:53:07,975 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 21:53:08,009 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 21:53:08,009 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 21:53:08,009 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 21:53:08,009 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 21:53:08,010 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 21:53:08,010 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 21:53:08,010 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 21:53:08,010 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 21:53:08,043 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states. [2020-09-24 21:53:08,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-09-24 21:53:08,061 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:53:08,063 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] [2020-09-24 21:53:08,064 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:53:08,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:53:08,073 INFO L82 PathProgramCache]: Analyzing trace with hash 356343399, now seen corresponding path program 1 times [2020-09-24 21:53:08,085 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:53:08,085 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [711935873] [2020-09-24 21:53:08,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:53:08,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:08,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:08,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:09,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:10,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:10,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-09-24 21:53:10,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 21:53:10,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2253 [2020-09-24 21:53:10,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:10,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 21:53:10,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 21:53:10,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 157 [2020-09-24 21:53:10,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 21:53:10,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:53:10,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:10,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:10,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:10,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 21:53:10,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:10,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-24 21:53:10,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:10,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:53:10,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:53:10,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 21:53:10,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:53:10,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-24 21:53:10,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:10,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:10,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:10,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:53:10,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:10,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 21:53:10,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:10,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:53:10,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:53:10,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:53:10,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:53:10,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-24 21:53:10,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:10,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:10,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:10,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:53:10,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:10,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:53:10,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:10,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:53:10,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:53:10,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:53:10,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 21:53:10,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-24 21:53:10,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:10,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:10,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:11,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 21:53:11,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:11,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 21:53:11,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:11,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:53:11,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:53:11,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 21:53:11,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:53:11,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-24 21:53:11,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:11,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:11,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:11,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 21:53:11,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:11,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-24 21:53:11,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:11,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:53:11,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:53:11,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 21:53:11,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:53:11,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-09-24 21:53:11,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:11,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:11,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:11,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-24 21:53:11,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:11,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-24 21:53:11,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:11,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:53:11,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:53:11,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-24 21:53:11,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:53:11,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:53:11,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:11,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:11,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:11,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:53:11,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:11,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:53:11,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:11,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:53:11,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:53:11,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:53:11,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:53:11,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 21:53:11,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:11,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:11,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:11,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:53:11,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:11,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:53:11,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:11,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:53:11,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:53:11,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:53:11,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:53:11,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-24 21:53:11,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:11,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:11,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:11,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:53:11,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:11,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:53:11,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:11,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:53:11,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:53:11,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:53:11,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:53:11,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-09-24 21:53:11,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:11,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:11,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:11,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 21:53:11,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:11,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 21:53:11,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:11,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:53:11,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:53:11,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 21:53:11,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:53:11,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-09-24 21:53:11,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:11,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:11,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:11,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:53:11,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:11,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 21:53:11,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:11,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:53:11,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:53:11,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:53:11,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:53:11,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:53:11,253 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [711935873] [2020-09-24 21:53:11,256 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:53:11,257 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 21:53:11,258 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767676359] [2020-09-24 21:53:11,267 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 21:53:11,267 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:53:11,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 21:53:11,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-24 21:53:11,292 INFO L87 Difference]: Start difference. First operand 284 states. Second operand 7 states. [2020-09-24 21:53:14,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:53:14,283 INFO L93 Difference]: Finished difference Result 1031 states and 1399 transitions. [2020-09-24 21:53:14,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 21:53:14,290 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 134 [2020-09-24 21:53:14,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:53:14,326 INFO L225 Difference]: With dead ends: 1031 [2020-09-24 21:53:14,327 INFO L226 Difference]: Without dead ends: 773 [2020-09-24 21:53:14,337 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2020-09-24 21:53:14,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 773 states. [2020-09-24 21:53:14,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 773 to 521. [2020-09-24 21:53:14,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 521 states. [2020-09-24 21:53:14,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 645 transitions. [2020-09-24 21:53:14,483 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 645 transitions. Word has length 134 [2020-09-24 21:53:14,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:53:14,484 INFO L479 AbstractCegarLoop]: Abstraction has 521 states and 645 transitions. [2020-09-24 21:53:14,484 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 21:53:14,485 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 645 transitions. [2020-09-24 21:53:14,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2020-09-24 21:53:14,492 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:53:14,493 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:53:14,493 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 21:53:14,494 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:53:14,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:53:14,494 INFO L82 PathProgramCache]: Analyzing trace with hash 1876371016, now seen corresponding path program 1 times [2020-09-24 21:53:14,494 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:53:14,495 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1716350307] [2020-09-24 21:53:14,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:53:14,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:14,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:14,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:15,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:19,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:19,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:19,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 262 [2020-09-24 21:53:19,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 21:53:19,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-09-24 21:53:19,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:19,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 21:53:19,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 55 [2020-09-24 21:53:19,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 172 [2020-09-24 21:53:19,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:53:19,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:53:19,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:19,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:19,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:19,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 21:53:19,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:19,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 21:53:19,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:19,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:53:19,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:53:19,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:53:19,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:53:19,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-24 21:53:19,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:19,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:19,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:19,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:53:19,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:19,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:53:19,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:19,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:53:19,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:53:19,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:53:19,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:53:19,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-24 21:53:19,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:19,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:19,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:19,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:53:19,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:19,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:53:19,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:19,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:53:19,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:53:19,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:53:19,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:53:19,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-24 21:53:19,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:19,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:19,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:19,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 21:53:19,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:19,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-24 21:53:19,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:19,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:53:19,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:53:19,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:53:19,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:53:19,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-24 21:53:19,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:19,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:19,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:19,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 21:53:19,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:19,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 21:53:19,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:19,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:53:19,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:53:19,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 21:53:19,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:53:19,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-09-24 21:53:19,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:19,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:19,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:19,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-24 21:53:19,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:19,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 21:53:19,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:19,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 21:53:19,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 21:53:19,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-09-24 21:53:19,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:53:19,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:53:19,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:19,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:19,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:19,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:53:19,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:19,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:53:19,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:19,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:53:19,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:53:19,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:53:19,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:53:19,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 21:53:19,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:19,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:19,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:19,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:53:19,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:19,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:53:19,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:19,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:53:19,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:53:19,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:53:19,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:53:19,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-24 21:53:19,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:19,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:19,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:19,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:53:19,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:19,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:53:19,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:19,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:53:19,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:53:19,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:53:19,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 21:53:19,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-09-24 21:53:19,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:19,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:19,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:19,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 21:53:19,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:19,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:53:19,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:19,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:53:19,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:53:19,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 21:53:19,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:53:19,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-09-24 21:53:19,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:19,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:19,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:19,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:53:19,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:19,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-24 21:53:19,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:19,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:53:19,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:53:19,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:53:19,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:53:20,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 21:53:20,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:20,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:20,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:20,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-09-24 21:53:20,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:20,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 162 [2020-09-24 21:53:20,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:20,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 21:53:20,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 21:53:20,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-24 21:53:20,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:53:20,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 21:53:20,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:20,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:20,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:20,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 21:53:20,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:20,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-24 21:53:20,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:20,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 21:53:20,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 21:53:20,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-24 21:53:20,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 21:53:20,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:53:20,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:20,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:20,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:20,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-24 21:53:20,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:20,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 21:53:20,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:20,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 21:53:20,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 21:53:20,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-09-24 21:53:20,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:53:20,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:53:20,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:20,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:20,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:20,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:53:20,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:20,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:53:20,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:20,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:53:20,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:53:20,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:53:20,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:53:20,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 21:53:20,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:20,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:20,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:20,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:53:20,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:20,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:53:20,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:20,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:53:20,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:53:20,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:53:20,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:53:20,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-24 21:53:20,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:20,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:20,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:20,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:53:20,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:20,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:53:20,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:20,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:53:20,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:53:20,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:53:20,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:53:20,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2020-09-24 21:53:20,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:20,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:20,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:20,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:53:20,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:20,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 21:53:20,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:20,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:53:20,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-24 21:53:20,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:53:20,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:53:20,432 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-09-24 21:53:20,433 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1716350307] [2020-09-24 21:53:20,433 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:53:20,433 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 21:53:20,434 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216859658] [2020-09-24 21:53:20,437 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 21:53:20,438 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:53:20,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 21:53:20,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-09-24 21:53:20,440 INFO L87 Difference]: Start difference. First operand 521 states and 645 transitions. Second operand 10 states. [2020-09-24 21:53:24,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:53:24,763 INFO L93 Difference]: Finished difference Result 2267 states and 3116 transitions. [2020-09-24 21:53:24,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-09-24 21:53:24,764 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 213 [2020-09-24 21:53:24,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:53:24,795 INFO L225 Difference]: With dead ends: 2267 [2020-09-24 21:53:24,795 INFO L226 Difference]: Without dead ends: 1795 [2020-09-24 21:53:24,806 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 44 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=241, Invalid=515, Unknown=0, NotChecked=0, Total=756 [2020-09-24 21:53:24,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1795 states. [2020-09-24 21:53:24,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1795 to 1051. [2020-09-24 21:53:24,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1051 states. [2020-09-24 21:53:24,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1051 states to 1051 states and 1348 transitions. [2020-09-24 21:53:24,962 INFO L78 Accepts]: Start accepts. Automaton has 1051 states and 1348 transitions. Word has length 213 [2020-09-24 21:53:24,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:53:24,962 INFO L479 AbstractCegarLoop]: Abstraction has 1051 states and 1348 transitions. [2020-09-24 21:53:24,963 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 21:53:24,963 INFO L276 IsEmpty]: Start isEmpty. Operand 1051 states and 1348 transitions. [2020-09-24 21:53:24,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2020-09-24 21:53:24,970 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:53:24,970 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:53:24,970 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 21:53:24,971 INFO L427 AbstractCegarLoop]: === Iteration 3 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:53:24,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:53:24,971 INFO L82 PathProgramCache]: Analyzing trace with hash 1421481640, now seen corresponding path program 1 times [2020-09-24 21:53:24,971 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:53:24,971 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [155107923] [2020-09-24 21:53:24,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:53:24,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:25,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:25,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:25,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:27,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:29,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:29,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 262 [2020-09-24 21:53:29,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 21:53:29,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4306 [2020-09-24 21:53:29,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:29,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:53:29,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-09-24 21:53:29,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 21:53:29,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:53:29,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:53:29,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:29,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:29,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:29,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 21:53:29,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:29,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 21:53:29,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:29,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:53:29,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:53:29,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:53:29,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:53:29,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-24 21:53:29,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:29,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:29,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:29,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:53:29,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:29,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 21:53:29,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:29,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:53:29,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:53:29,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 21:53:29,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:53:29,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-24 21:53:29,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:29,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:29,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:29,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:53:29,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:29,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:53:29,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:29,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:53:29,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:53:29,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:53:29,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:53:29,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-24 21:53:29,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:29,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:29,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:29,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 21:53:29,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:29,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 21:53:29,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:29,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:53:29,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-24 21:53:29,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:53:29,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:53:29,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-24 21:53:29,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:29,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:29,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:29,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 21:53:29,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:29,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 21:53:29,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:29,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:53:29,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 21:53:29,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:53:29,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:53:29,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-09-24 21:53:29,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:29,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:29,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:29,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-24 21:53:29,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:29,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 21:53:29,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:29,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:53:29,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-09-24 21:53:29,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:53:29,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:53:29,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:53:29,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:29,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:29,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:29,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:53:29,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:29,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:53:29,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:29,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:53:29,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:53:29,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:53:29,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:53:29,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 21:53:29,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:29,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:29,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:29,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:53:29,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:29,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:53:29,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:29,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:53:29,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:53:29,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:53:29,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:53:29,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-24 21:53:29,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:29,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:29,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:29,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:53:29,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:29,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:53:29,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:29,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:53:29,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:53:29,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:53:29,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:53:29,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-09-24 21:53:29,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:29,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:29,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:29,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 21:53:29,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:29,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:53:29,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:29,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:53:29,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 21:53:29,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:53:29,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:53:29,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-09-24 21:53:29,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:29,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:29,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:29,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:53:29,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:29,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:53:29,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:29,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:53:29,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-24 21:53:29,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:53:29,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:53:29,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 21:53:29,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:29,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:29,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:29,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-09-24 21:53:29,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:29,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-24 21:53:29,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:29,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:53:29,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-09-24 21:53:29,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:53:29,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:53:29,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 21:53:29,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:29,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:29,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:29,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 21:53:29,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:29,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:53:29,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:29,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:53:29,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:53:29,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:53:29,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:53:29,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:53:29,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:29,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:29,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:29,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-24 21:53:29,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:29,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:53:29,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:29,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:53:29,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:53:29,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:53:29,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:53:29,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:53:29,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:29,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:29,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:29,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:53:29,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:29,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:53:29,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:29,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:53:29,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:53:29,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:53:29,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:53:29,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 21:53:29,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:29,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:29,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:29,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:53:29,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:29,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:53:29,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:29,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:53:29,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:53:29,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:53:29,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:53:29,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-24 21:53:29,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:29,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:29,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:29,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:53:29,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:29,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:53:29,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:29,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:53:29,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:53:29,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:53:29,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:53:29,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2020-09-24 21:53:29,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:29,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:29,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:29,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:53:29,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:29,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:53:29,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:29,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:53:29,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-24 21:53:29,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:53:29,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:53:29,805 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2020-09-24 21:53:29,805 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [155107923] [2020-09-24 21:53:29,806 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:53:29,806 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 21:53:29,806 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012065344] [2020-09-24 21:53:29,807 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 21:53:29,807 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:53:29,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 21:53:29,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-09-24 21:53:29,809 INFO L87 Difference]: Start difference. First operand 1051 states and 1348 transitions. Second operand 9 states. [2020-09-24 21:53:31,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:53:31,981 INFO L93 Difference]: Finished difference Result 2583 states and 3403 transitions. [2020-09-24 21:53:31,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-24 21:53:31,981 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 213 [2020-09-24 21:53:31,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:53:31,998 INFO L225 Difference]: With dead ends: 2583 [2020-09-24 21:53:31,999 INFO L226 Difference]: Without dead ends: 1579 [2020-09-24 21:53:32,005 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=129, Invalid=333, Unknown=0, NotChecked=0, Total=462 [2020-09-24 21:53:32,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1579 states. [2020-09-24 21:53:32,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1579 to 1042. [2020-09-24 21:53:32,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1042 states. [2020-09-24 21:53:32,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1042 states to 1042 states and 1333 transitions. [2020-09-24 21:53:32,189 INFO L78 Accepts]: Start accepts. Automaton has 1042 states and 1333 transitions. Word has length 213 [2020-09-24 21:53:32,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:53:32,191 INFO L479 AbstractCegarLoop]: Abstraction has 1042 states and 1333 transitions. [2020-09-24 21:53:32,191 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 21:53:32,191 INFO L276 IsEmpty]: Start isEmpty. Operand 1042 states and 1333 transitions. [2020-09-24 21:53:32,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2020-09-24 21:53:32,200 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:53:32,200 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:53:32,201 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 21:53:32,201 INFO L427 AbstractCegarLoop]: === Iteration 4 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:53:32,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:53:32,202 INFO L82 PathProgramCache]: Analyzing trace with hash -1658324924, now seen corresponding path program 1 times [2020-09-24 21:53:32,202 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:53:32,203 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [841564287] [2020-09-24 21:53:32,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:53:32,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:32,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:32,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:34,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:34,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:34,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 267 [2020-09-24 21:53:34,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 21:53:34,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2435 [2020-09-24 21:53:34,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:34,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 21:53:34,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 57 [2020-09-24 21:53:34,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 176 [2020-09-24 21:53:34,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:53:34,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:53:34,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:34,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:34,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:34,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 21:53:34,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:34,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 21:53:34,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:34,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:53:34,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:53:34,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:53:34,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:53:34,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-24 21:53:34,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:34,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:34,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:34,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:53:34,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:34,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:53:34,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:34,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:53:34,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:53:34,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:53:34,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:53:34,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-24 21:53:34,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:34,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:34,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:34,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:53:34,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:34,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:53:34,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:34,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:53:34,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:53:34,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:53:34,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:53:34,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-24 21:53:34,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:34,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:34,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:34,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 21:53:34,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:34,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 21:53:34,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:34,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:53:34,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:53:34,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:53:34,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:53:34,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-24 21:53:34,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:34,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:34,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:34,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 21:53:34,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:34,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 21:53:34,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:34,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:53:34,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:53:34,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 21:53:34,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:53:34,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-09-24 21:53:34,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:34,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:34,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:34,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-24 21:53:34,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:34,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-24 21:53:34,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:34,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 21:53:34,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 21:53:34,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-09-24 21:53:34,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:53:34,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:53:34,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:34,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:34,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:34,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:53:34,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:34,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:53:34,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:34,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:53:34,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:53:34,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:53:34,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:53:34,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 21:53:34,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:34,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:34,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:34,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:53:34,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:34,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:53:34,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:34,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:53:34,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:53:34,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:53:34,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:53:34,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-24 21:53:34,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:34,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:35,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:35,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:53:35,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:35,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:53:35,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:35,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:53:35,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:53:35,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:53:35,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:53:35,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-09-24 21:53:35,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:35,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:35,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:35,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 21:53:35,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:35,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 21:53:35,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:35,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:53:35,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:53:35,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 21:53:35,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:53:35,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-09-24 21:53:35,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:35,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:35,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:35,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:53:35,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:35,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 21:53:35,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:35,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:53:35,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:53:35,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:53:35,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:53:35,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 21:53:35,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:35,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:35,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:35,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-09-24 21:53:35,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:35,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 187 [2020-09-24 21:53:35,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:35,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 21:53:35,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 21:53:35,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-24 21:53:35,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:53:35,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 21:53:35,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:35,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:35,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:35,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 21:53:35,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:35,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-24 21:53:35,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:35,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 21:53:35,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 21:53:35,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-24 21:53:35,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:53:35,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:53:35,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:35,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:35,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:35,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-24 21:53:35,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:35,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 21:53:35,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:35,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 21:53:35,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 21:53:35,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-09-24 21:53:35,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:53:35,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:53:35,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:35,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:35,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:35,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:53:35,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:35,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:53:35,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:35,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:53:35,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:53:35,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:53:35,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:53:35,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 21:53:35,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:35,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:35,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:35,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:53:35,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:35,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:53:35,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:35,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:53:35,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:53:35,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:53:35,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:53:35,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-24 21:53:35,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:35,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:35,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:35,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:53:35,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:35,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:53:35,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:35,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:53:35,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:53:35,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:53:35,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 21:53:35,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2020-09-24 21:53:35,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:35,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:35,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:35,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:53:35,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:35,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:53:35,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:35,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:53:35,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-24 21:53:35,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:53:35,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:53:35,610 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-09-24 21:53:35,613 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [841564287] [2020-09-24 21:53:35,613 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:53:35,614 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 21:53:35,614 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878300480] [2020-09-24 21:53:35,615 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 21:53:35,615 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:53:35,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 21:53:35,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-09-24 21:53:35,622 INFO L87 Difference]: Start difference. First operand 1042 states and 1333 transitions. Second operand 9 states. [2020-09-24 21:53:39,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:53:39,898 INFO L93 Difference]: Finished difference Result 4554 states and 6640 transitions. [2020-09-24 21:53:39,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-09-24 21:53:39,899 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 218 [2020-09-24 21:53:39,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:53:39,930 INFO L225 Difference]: With dead ends: 4554 [2020-09-24 21:53:39,930 INFO L226 Difference]: Without dead ends: 3560 [2020-09-24 21:53:39,941 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 43 SyntacticMatches, 3 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=217, Invalid=485, Unknown=0, NotChecked=0, Total=702 [2020-09-24 21:53:39,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3560 states. [2020-09-24 21:53:40,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3560 to 2132. [2020-09-24 21:53:40,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2132 states. [2020-09-24 21:53:40,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2132 states to 2132 states and 2853 transitions. [2020-09-24 21:53:40,155 INFO L78 Accepts]: Start accepts. Automaton has 2132 states and 2853 transitions. Word has length 218 [2020-09-24 21:53:40,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:53:40,156 INFO L479 AbstractCegarLoop]: Abstraction has 2132 states and 2853 transitions. [2020-09-24 21:53:40,156 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 21:53:40,156 INFO L276 IsEmpty]: Start isEmpty. Operand 2132 states and 2853 transitions. [2020-09-24 21:53:40,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2020-09-24 21:53:40,165 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:53:40,165 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:53:40,165 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 21:53:40,166 INFO L427 AbstractCegarLoop]: === Iteration 5 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:53:40,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:53:40,166 INFO L82 PathProgramCache]: Analyzing trace with hash 1649060836, now seen corresponding path program 1 times [2020-09-24 21:53:40,166 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:53:40,167 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [543367825] [2020-09-24 21:53:40,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:53:40,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:40,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:40,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:40,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:40,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:40,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 267 [2020-09-24 21:53:40,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 21:53:40,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 533 [2020-09-24 21:53:40,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:40,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:53:40,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 21:53:40,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-24 21:53:40,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:53:40,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:53:40,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:40,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:40,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:40,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 21:53:40,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:40,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 21:53:40,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:40,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:53:40,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:53:40,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:53:40,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:53:40,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-24 21:53:40,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:40,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:40,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:40,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:53:40,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:40,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 21:53:40,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:40,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:53:40,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:53:40,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:53:40,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:53:40,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-24 21:53:40,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:40,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:40,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:40,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:53:40,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:40,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:53:40,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:40,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:53:40,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:53:40,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:53:40,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:53:40,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-24 21:53:40,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:40,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:40,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:40,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 21:53:40,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:40,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 21:53:40,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:40,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:53:40,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 21:53:40,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:53:40,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:53:40,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-24 21:53:40,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:40,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:40,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:40,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 21:53:40,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:40,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 21:53:40,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:40,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:53:40,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 21:53:40,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:53:40,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:53:40,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-09-24 21:53:40,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:40,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:40,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:40,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-24 21:53:40,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:40,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 21:53:40,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:40,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:53:40,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-09-24 21:53:40,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:53:40,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:53:40,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:53:40,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:40,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:40,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:40,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:53:40,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:40,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:53:40,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:40,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:53:40,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:53:40,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:53:40,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:53:40,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 21:53:40,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:40,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:40,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:40,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:53:40,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:40,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:53:40,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:40,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:53:40,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:53:40,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:53:40,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:53:40,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-24 21:53:40,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:40,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:40,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:40,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:53:40,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:40,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:53:40,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:40,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:53:40,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:53:40,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:53:40,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:53:40,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-09-24 21:53:40,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:40,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:40,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:40,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 21:53:40,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:40,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:53:40,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:40,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:53:40,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 21:53:40,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:53:40,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:53:40,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-09-24 21:53:40,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:40,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:40,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:40,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:53:40,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:40,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:53:40,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:40,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:53:40,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-24 21:53:40,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:53:40,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:53:41,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 21:53:41,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:41,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:41,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:41,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-09-24 21:53:41,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:41,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-24 21:53:41,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:41,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:53:41,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-09-24 21:53:41,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:53:41,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:53:41,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 21:53:41,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:41,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:41,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:41,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 21:53:41,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:41,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:53:41,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:41,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:53:41,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:53:41,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:53:41,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:53:41,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:53:41,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:41,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:41,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:41,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-24 21:53:41,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:41,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 21:53:41,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:41,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:53:41,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:53:41,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:53:41,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:53:41,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:53:41,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:41,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:41,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:41,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:53:41,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:41,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:53:41,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:41,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:53:41,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:53:41,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:53:41,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:53:41,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 21:53:41,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:41,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:41,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:41,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:53:41,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:41,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:53:41,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:41,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:53:41,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:53:41,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:53:41,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:53:41,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-24 21:53:41,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:41,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:41,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:41,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:53:41,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:41,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:53:41,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:41,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:53:41,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:53:41,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:53:41,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:53:41,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2020-09-24 21:53:41,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:41,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:41,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:41,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:53:41,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:41,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:53:41,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:41,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:53:41,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-24 21:53:41,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:53:41,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:53:41,190 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2020-09-24 21:53:41,191 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [543367825] [2020-09-24 21:53:41,191 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:53:41,191 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 21:53:41,191 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318325865] [2020-09-24 21:53:41,192 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 21:53:41,192 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:53:41,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 21:53:41,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-09-24 21:53:41,193 INFO L87 Difference]: Start difference. First operand 2132 states and 2853 transitions. Second operand 9 states. [2020-09-24 21:53:43,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:53:43,441 INFO L93 Difference]: Finished difference Result 5228 states and 7200 transitions. [2020-09-24 21:53:43,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-24 21:53:43,441 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 218 [2020-09-24 21:53:43,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:53:43,463 INFO L225 Difference]: With dead ends: 5228 [2020-09-24 21:53:43,463 INFO L226 Difference]: Without dead ends: 3142 [2020-09-24 21:53:43,475 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=129, Invalid=333, Unknown=0, NotChecked=0, Total=462 [2020-09-24 21:53:43,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3142 states. [2020-09-24 21:53:43,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3142 to 2126. [2020-09-24 21:53:43,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2126 states. [2020-09-24 21:53:43,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2126 states to 2126 states and 2842 transitions. [2020-09-24 21:53:43,625 INFO L78 Accepts]: Start accepts. Automaton has 2126 states and 2842 transitions. Word has length 218 [2020-09-24 21:53:43,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:53:43,625 INFO L479 AbstractCegarLoop]: Abstraction has 2126 states and 2842 transitions. [2020-09-24 21:53:43,625 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 21:53:43,625 INFO L276 IsEmpty]: Start isEmpty. Operand 2126 states and 2842 transitions. [2020-09-24 21:53:43,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2020-09-24 21:53:43,631 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:53:43,632 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:53:43,632 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 21:53:43,632 INFO L427 AbstractCegarLoop]: === Iteration 6 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:53:43,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:53:43,632 INFO L82 PathProgramCache]: Analyzing trace with hash -1725546776, now seen corresponding path program 1 times [2020-09-24 21:53:43,633 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:53:43,633 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [24931300] [2020-09-24 21:53:43,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:53:43,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:43,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:43,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:43,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:43,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 272 [2020-09-24 21:53:43,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:53:43,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 265 [2020-09-24 21:53:43,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:43,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:53:43,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 223 [2020-09-24 21:53:43,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-24 21:53:43,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:53:44,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:53:44,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:44,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:44,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:44,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 21:53:44,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:44,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 21:53:44,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:44,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:53:44,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:53:44,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:53:44,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:53:44,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-24 21:53:44,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:44,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:44,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:44,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:53:44,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:44,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:53:44,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:44,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:53:44,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:53:44,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:53:44,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:53:44,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-24 21:53:44,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:44,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:44,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:44,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:53:44,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:44,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:53:44,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:44,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:53:44,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:53:44,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:53:44,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:53:44,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-24 21:53:44,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:44,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:44,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:44,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 21:53:44,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:44,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:53:44,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:44,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:53:44,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:53:44,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:53:44,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:53:44,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-24 21:53:44,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:44,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:44,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:44,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 21:53:44,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:44,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:53:44,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:44,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:53:44,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:53:44,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:53:44,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:53:44,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-09-24 21:53:44,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:44,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:44,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:44,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-24 21:53:44,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:44,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:53:44,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:44,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:53:44,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:53:44,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:53:44,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:53:44,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:53:44,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:44,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:44,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:44,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:53:44,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:44,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:53:44,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:44,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:53:44,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:53:44,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:53:44,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:53:44,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 21:53:44,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:44,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:44,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:44,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:53:44,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:44,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:53:44,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:44,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:53:44,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:53:44,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:53:44,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:53:44,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-24 21:53:44,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:44,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:44,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:44,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:53:44,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:44,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:53:44,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:44,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:53:44,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:53:44,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:53:44,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:53:44,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-09-24 21:53:44,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:44,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:44,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:44,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 21:53:44,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:44,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:53:44,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:44,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:53:44,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:53:44,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:53:44,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:53:44,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-09-24 21:53:44,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:44,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:44,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:44,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:53:44,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:44,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:53:44,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:44,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:53:44,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:53:44,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:53:44,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:53:44,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 21:53:44,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:44,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:44,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:44,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-09-24 21:53:44,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:44,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-24 21:53:44,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:44,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:53:44,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:53:44,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-24 21:53:44,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:53:44,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 21:53:44,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:44,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:44,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:44,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 21:53:44,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:44,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 21:53:44,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:44,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:53:44,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:53:44,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:53:44,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:53:44,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:53:44,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:44,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:44,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:44,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-24 21:53:44,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:44,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:53:44,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:44,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:53:44,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:53:44,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:53:44,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:53:44,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:53:44,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:44,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:44,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:44,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:53:44,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:44,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:53:44,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:44,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:53:44,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:53:44,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:53:44,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:53:44,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 21:53:44,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:44,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:44,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:44,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:53:44,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:44,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:53:44,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:44,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:53:44,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:53:44,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:53:44,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:53:44,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-24 21:53:44,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:44,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:44,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:44,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:53:44,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:44,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:53:44,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:44,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:53:44,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:53:44,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:53:44,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:53:44,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2020-09-24 21:53:44,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:44,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:44,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:53:44,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:53:44,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:53:44,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 21:53:44,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:53:44,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:53:44,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-24 21:53:44,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 21:53:44,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:53:44,405 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-09-24 21:53:44,405 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [24931300] [2020-09-24 21:53:44,406 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:53:44,407 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 21:53:44,407 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034356850] [2020-09-24 21:53:44,408 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 21:53:44,409 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:53:44,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 21:53:44,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-09-24 21:53:44,409 INFO L87 Difference]: Start difference. First operand 2126 states and 2842 transitions. Second operand 9 states. [2020-09-24 21:53:48,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:53:48,781 INFO L93 Difference]: Finished difference Result 8273 states and 11967 transitions. [2020-09-24 21:53:48,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-09-24 21:53:48,782 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 223 [2020-09-24 21:53:48,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:53:48,821 INFO L225 Difference]: With dead ends: 8273 [2020-09-24 21:53:48,821 INFO L226 Difference]: Without dead ends: 6194 [2020-09-24 21:53:48,839 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=197, Invalid=559, Unknown=0, NotChecked=0, Total=756 [2020-09-24 21:53:48,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6194 states. [2020-09-24 21:53:49,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6194 to 4572. [2020-09-24 21:53:49,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4572 states. [2020-09-24 21:53:49,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4572 states to 4572 states and 6295 transitions. [2020-09-24 21:53:49,218 INFO L78 Accepts]: Start accepts. Automaton has 4572 states and 6295 transitions. Word has length 223 [2020-09-24 21:53:49,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:53:49,219 INFO L479 AbstractCegarLoop]: Abstraction has 4572 states and 6295 transitions. [2020-09-24 21:53:49,219 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 21:53:49,220 INFO L276 IsEmpty]: Start isEmpty. Operand 4572 states and 6295 transitions. [2020-09-24 21:53:49,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2020-09-24 21:53:49,323 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:53:49,323 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, 2, 2, 2, 2, 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] [2020-09-24 21:53:49,324 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 21:53:49,324 INFO L427 AbstractCegarLoop]: === Iteration 7 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:53:49,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:53:49,325 INFO L82 PathProgramCache]: Analyzing trace with hash -1614369954, now seen corresponding path program 1 times [2020-09-24 21:53:49,325 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:53:49,325 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [97376288] [2020-09-24 21:53:49,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:53:49,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:53:49,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:49,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:49,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:49,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:49,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:50,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:50,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:53:52,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking...