/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/systemc/kundu.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 19:46:48,567 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 19:46:48,570 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 19:46:48,607 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 19:46:48,608 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 19:46:48,610 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 19:46:48,612 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 19:46:48,614 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 19:46:48,617 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 19:46:48,618 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 19:46:48,620 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 19:46:48,622 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 19:46:48,622 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 19:46:48,624 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 19:46:48,625 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 19:46:48,627 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 19:46:48,628 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 19:46:48,630 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 19:46:48,632 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 19:46:48,635 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 19:46:48,654 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 19:46:48,655 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 19:46:48,657 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 19:46:48,658 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 19:46:48,661 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 19:46:48,662 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 19:46:48,662 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 19:46:48,663 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 19:46:48,664 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 19:46:48,665 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 19:46:48,665 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 19:46:48,666 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 19:46:48,667 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 19:46:48,668 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 19:46:48,670 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 19:46:48,670 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 19:46:48,671 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 19:46:48,671 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 19:46:48,671 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 19:46:48,672 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 19:46:48,673 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 19:46:48,675 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-28 19:46:48,702 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 19:46:48,702 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 19:46:48,703 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 19:46:48,704 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 19:46:48,704 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 19:46:48,704 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 19:46:48,705 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 19:46:48,705 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 19:46:48,705 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 19:46:48,705 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 19:46:48,705 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 19:46:48,706 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 19:46:48,706 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 19:46:48,706 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 19:46:48,706 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 19:46:48,707 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 19:46:48,707 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 19:46:48,707 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 19:46:48,707 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 19:46:48,708 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 19:46:48,708 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 19:46:48,708 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 19:46:48,708 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 19:46:48,709 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 19:46:48,709 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 19:46:48,709 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 19:46:48,709 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 19:46:48,710 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 19:46:48,710 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 19:46:48,710 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 19:46:49,095 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 19:46:49,130 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 19:46:49,133 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 19:46:49,135 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 19:46:49,136 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 19:46:49,137 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/kundu.cil.c [2020-10-28 19:46:49,223 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9af33514d/692f58cb8f9344518fd1dc6dc0b24a1f/FLAGfa0b3a5e5 [2020-10-28 19:46:50,048 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 19:46:50,052 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/systemc/kundu.cil.c [2020-10-28 19:46:50,072 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9af33514d/692f58cb8f9344518fd1dc6dc0b24a1f/FLAGfa0b3a5e5 [2020-10-28 19:46:50,335 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9af33514d/692f58cb8f9344518fd1dc6dc0b24a1f [2020-10-28 19:46:50,338 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 19:46:50,346 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 19:46:50,350 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 19:46:50,350 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 19:46:50,357 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 19:46:50,358 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 07:46:50" (1/1) ... [2020-10-28 19:46:50,363 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dae8fb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 07:46:50, skipping insertion in model container [2020-10-28 19:46:50,363 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 07:46:50" (1/1) ... [2020-10-28 19:46:50,372 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 19:46:50,434 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 19:46:50,667 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 19:46:50,680 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 19:46:50,750 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 19:46:50,777 INFO L208 MainTranslator]: Completed translation [2020-10-28 19:46:50,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 07:46:50 WrapperNode [2020-10-28 19:46:50,777 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 19:46:50,779 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 19:46:50,779 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 19:46:50,779 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 19:46:50,792 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 07:46:50" (1/1) ... [2020-10-28 19:46:50,792 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 07:46:50" (1/1) ... [2020-10-28 19:46:50,803 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 07:46:50" (1/1) ... [2020-10-28 19:46:50,803 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 07:46:50" (1/1) ... [2020-10-28 19:46:50,816 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 07:46:50" (1/1) ... [2020-10-28 19:46:50,826 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 07:46:50" (1/1) ... [2020-10-28 19:46:50,829 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 07:46:50" (1/1) ... [2020-10-28 19:46:50,834 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 19:46:50,835 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 19:46:50,835 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 19:46:50,836 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 19:46:50,837 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 07:46:50" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 19:46:50,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 19:46:50,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 19:46:50,922 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 19:46:50,922 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2020-10-28 19:46:50,922 INFO L138 BoogieDeclarations]: Found implementation of procedure read_data [2020-10-28 19:46:50,923 INFO L138 BoogieDeclarations]: Found implementation of procedure write_data [2020-10-28 19:46:50,923 INFO L138 BoogieDeclarations]: Found implementation of procedure P_1 [2020-10-28 19:46:50,923 INFO L138 BoogieDeclarations]: Found implementation of procedure is_P_1_triggered [2020-10-28 19:46:50,923 INFO L138 BoogieDeclarations]: Found implementation of procedure P_2 [2020-10-28 19:46:50,923 INFO L138 BoogieDeclarations]: Found implementation of procedure is_P_2_triggered [2020-10-28 19:46:50,923 INFO L138 BoogieDeclarations]: Found implementation of procedure C_1 [2020-10-28 19:46:50,924 INFO L138 BoogieDeclarations]: Found implementation of procedure is_C_1_triggered [2020-10-28 19:46:50,924 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2020-10-28 19:46:50,924 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2020-10-28 19:46:50,924 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2020-10-28 19:46:50,924 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2020-10-28 19:46:50,924 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2020-10-28 19:46:50,924 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2020-10-28 19:46:50,925 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2020-10-28 19:46:50,925 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2020-10-28 19:46:50,925 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2020-10-28 19:46:50,925 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2020-10-28 19:46:50,925 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2020-10-28 19:46:50,925 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2020-10-28 19:46:50,926 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2020-10-28 19:46:50,926 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 19:46:50,926 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 19:46:50,926 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 19:46:50,926 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 19:46:50,926 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 19:46:50,927 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 19:46:50,927 INFO L130 BoogieDeclarations]: Found specification of procedure error [2020-10-28 19:46:50,927 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2020-10-28 19:46:50,927 INFO L130 BoogieDeclarations]: Found specification of procedure read_data [2020-10-28 19:46:50,927 INFO L130 BoogieDeclarations]: Found specification of procedure write_data [2020-10-28 19:46:50,927 INFO L130 BoogieDeclarations]: Found specification of procedure P_1 [2020-10-28 19:46:50,930 INFO L130 BoogieDeclarations]: Found specification of procedure is_P_1_triggered [2020-10-28 19:46:50,931 INFO L130 BoogieDeclarations]: Found specification of procedure P_2 [2020-10-28 19:46:50,931 INFO L130 BoogieDeclarations]: Found specification of procedure is_P_2_triggered [2020-10-28 19:46:50,931 INFO L130 BoogieDeclarations]: Found specification of procedure C_1 [2020-10-28 19:46:50,931 INFO L130 BoogieDeclarations]: Found specification of procedure is_C_1_triggered [2020-10-28 19:46:50,931 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2020-10-28 19:46:50,931 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2020-10-28 19:46:50,931 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2020-10-28 19:46:50,932 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2020-10-28 19:46:50,932 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2020-10-28 19:46:50,934 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2020-10-28 19:46:50,935 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2020-10-28 19:46:50,935 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2020-10-28 19:46:50,935 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2020-10-28 19:46:50,935 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2020-10-28 19:46:50,935 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2020-10-28 19:46:50,936 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2020-10-28 19:46:50,936 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 19:46:50,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 19:46:50,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 19:46:50,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 19:46:50,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 19:46:50,937 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 19:46:50,937 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 19:46:51,589 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 19:46:51,589 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-28 19:46:51,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 07:46:51 BoogieIcfgContainer [2020-10-28 19:46:51,592 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 19:46:51,594 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 19:46:51,595 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 19:46:51,599 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 19:46:51,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 07:46:50" (1/3) ... [2020-10-28 19:46:51,600 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@768a2989 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 07:46:51, skipping insertion in model container [2020-10-28 19:46:51,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 07:46:50" (2/3) ... [2020-10-28 19:46:51,601 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@768a2989 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 07:46:51, skipping insertion in model container [2020-10-28 19:46:51,601 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 07:46:51" (3/3) ... [2020-10-28 19:46:51,603 INFO L111 eAbstractionObserver]: Analyzing ICFG kundu.cil.c [2020-10-28 19:46:51,619 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 19:46:51,626 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 19:46:51,660 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 19:46:51,699 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 19:46:51,700 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 19:46:51,700 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 19:46:51,700 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 19:46:51,700 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 19:46:51,700 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 19:46:51,700 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 19:46:51,701 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 19:46:51,733 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states. [2020-10-28 19:46:51,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-10-28 19:46:51,747 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 19:46:51,749 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] [2020-10-28 19:46:51,749 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 19:46:51,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 19:46:51,757 INFO L82 PathProgramCache]: Analyzing trace with hash 522092465, now seen corresponding path program 1 times [2020-10-28 19:46:51,768 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 19:46:51,768 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [608490345] [2020-10-28 19:46:51,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 19:46:52,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:46:52,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:46:52,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:46:52,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:46:52,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:46:57,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:46:57,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-28 19:46:57,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 19:46:57,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-28 19:46:57,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:46:57,066 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:46:57,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 19:46:57,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 19:46:57,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-28 19:46:57,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-28 19:46:57,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 19:46:57,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:46:57,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:46:57,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:46:57,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:46:57,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:46:57,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-28 19:46:57,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:46:57,293 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:46:57,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:46:57,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:46:57,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 19:46:57,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 19:46:57,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 19:46:57,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:46:57,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:46:57,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:46:57,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:46:57,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:46:57,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 19:46:57,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:46:57,339 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:46:57,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:46:57,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:46:57,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 19:46:57,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-28 19:46:57,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 19:46:57,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:46:57,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:46:57,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:46:57,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:46:57,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:46:57,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:46:57,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:46:57,363 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:46:57,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:46:57,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:46:57,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 19:46:57,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-10-28 19:46:57,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 19:46:57,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:46:57,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:46:57,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:46:57,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 19:46:57,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:46:57,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 19:46:57,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:46:57,414 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:46:57,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:46:57,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:46:57,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 19:46:57,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:46:57,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-28 19:46:57,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:46:57,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:46:57,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:46:57,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:46:57,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:46:57,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 19:46:57,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:46:57,445 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:46:57,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:46:57,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:46:57,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 19:46:57,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:46:57,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-28 19:46:57,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:46:57,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:46:57,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:46:57,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:46:57,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:46:57,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-28 19:46:57,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 19:46:57,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 402 [2020-10-28 19:46:57,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:46:57,863 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:46:57,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:46:57,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-10-28 19:46:57,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 19:46:57,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:46:57,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 19:46:57,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:46:57,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:46:57,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:46:57,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:46:57,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:46:57,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 19:46:57,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:46:57,903 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:46:57,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:46:57,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:46:57,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:46:57,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 19:46:57,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 19:46:57,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:46:57,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:46:57,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:46:57,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:46:57,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:46:57,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:46:57,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:46:57,915 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:46:57,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:46:57,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:46:57,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:46:57,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 19:46:57,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 19:46:57,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:46:57,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:46:57,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:46:57,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:46:57,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:46:57,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 19:46:57,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:46:57,932 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:46:57,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:46:57,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:46:57,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 19:46:57,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 19:46:57,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-28 19:46:57,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:46:57,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:46:57,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:46:57,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:46:57,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:46:57,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:46:57,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:46:57,958 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:46:57,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:46:57,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-28 19:46:57,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:46:57,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:46:57,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-28 19:46:57,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:46:57,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:46:57,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:46:57,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 19:46:57,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:46:57,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:46:57,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:46:57,967 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:46:57,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:46:57,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 19:46:57,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:46:57,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:46:57,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 19:46:57,991 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [608490345] [2020-10-28 19:46:57,993 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 19:46:57,994 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-28 19:46:57,996 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207533053] [2020-10-28 19:46:58,016 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 19:46:58,018 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 19:46:58,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 19:46:58,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-28 19:46:58,042 INFO L87 Difference]: Start difference. First operand 186 states. Second operand 8 states. [2020-10-28 19:46:58,245 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-28 19:47:01,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 19:47:01,436 INFO L93 Difference]: Finished difference Result 593 states and 856 transitions. [2020-10-28 19:47:01,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-28 19:47:01,438 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 83 [2020-10-28 19:47:01,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 19:47:01,479 INFO L225 Difference]: With dead ends: 593 [2020-10-28 19:47:01,479 INFO L226 Difference]: Without dead ends: 414 [2020-10-28 19:47:01,492 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-10-28 19:47:01,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2020-10-28 19:47:01,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 360. [2020-10-28 19:47:01,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 360 states. [2020-10-28 19:47:01,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 480 transitions. [2020-10-28 19:47:01,664 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 480 transitions. Word has length 83 [2020-10-28 19:47:01,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 19:47:01,665 INFO L481 AbstractCegarLoop]: Abstraction has 360 states and 480 transitions. [2020-10-28 19:47:01,665 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 19:47:01,665 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 480 transitions. [2020-10-28 19:47:01,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-28 19:47:01,669 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 19:47:01,670 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] [2020-10-28 19:47:01,670 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 19:47:01,670 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 19:47:01,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 19:47:01,671 INFO L82 PathProgramCache]: Analyzing trace with hash 1677330639, now seen corresponding path program 1 times [2020-10-28 19:47:01,671 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 19:47:01,672 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [331076571] [2020-10-28 19:47:01,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 19:47:01,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:01,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:01,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:01,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:01,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:06,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:06,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-10-28 19:47:06,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 19:47:06,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-28 19:47:06,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:06,700 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:06,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 19:47:06,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 19:47:06,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-28 19:47:06,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 19:47:06,930 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-28 19:47:06,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 19:47:06,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:06,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:06,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:06,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:47:06,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:06,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 19:47:06,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:06,956 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:06,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:47:06,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:47:06,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 19:47:06,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 19:47:06,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 19:47:06,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:06,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:06,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:06,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:47:06,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:06,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 19:47:06,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:06,993 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:06,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:47:06,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:47:06,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 19:47:06,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:06,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 19:47:06,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:07,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:07,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:07,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:47:07,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:07,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:47:07,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:07,002 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:07,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:47:07,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:47:07,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 19:47:07,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:07,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 19:47:07,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:07,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:07,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:07,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 19:47:07,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:07,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 19:47:07,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:07,044 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:07,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:47:07,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:47:07,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 19:47:07,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:07,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-28 19:47:07,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:07,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:07,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:07,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:47:07,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:07,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:47:07,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:07,051 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:07,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:47:07,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:47:07,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 19:47:07,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:07,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-28 19:47:07,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:07,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:07,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:07,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:07,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:07,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-28 19:47:07,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 19:47:07,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 237 [2020-10-28 19:47:07,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:07,308 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:07,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:47:07,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-10-28 19:47:07,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 19:47:07,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:07,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 19:47:07,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:07,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:07,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:07,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:47:07,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:07,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:47:07,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:07,326 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:07,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:47:07,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:47:07,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:47:07,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:07,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 19:47:07,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:07,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:07,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:07,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:47:07,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:07,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:47:07,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:07,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:07,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:47:07,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:47:07,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:47:07,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:07,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 19:47:07,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:07,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:07,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:07,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 19:47:07,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:07,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 19:47:07,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:07,341 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:07,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:47:07,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:47:07,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 19:47:07,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:07,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-28 19:47:07,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:07,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:07,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:07,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:47:07,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:07,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:47:07,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:07,348 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:07,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:47:07,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-28 19:47:07,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:47:07,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:07,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-28 19:47:07,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:07,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:07,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:07,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 19:47:07,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:07,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:47:07,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:07,354 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:07,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:47:07,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 19:47:07,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:47:07,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:07,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 19:47:07,367 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [331076571] [2020-10-28 19:47:07,368 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 19:47:07,368 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-28 19:47:07,368 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984303592] [2020-10-28 19:47:07,370 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 19:47:07,370 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 19:47:07,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 19:47:07,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-28 19:47:07,371 INFO L87 Difference]: Start difference. First operand 360 states and 480 transitions. Second operand 8 states. [2020-10-28 19:47:07,508 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-28 19:47:08,977 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-28 19:47:09,496 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-28 19:47:10,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 19:47:10,540 INFO L93 Difference]: Finished difference Result 1187 states and 1634 transitions. [2020-10-28 19:47:10,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-28 19:47:10,543 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 84 [2020-10-28 19:47:10,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 19:47:10,551 INFO L225 Difference]: With dead ends: 1187 [2020-10-28 19:47:10,551 INFO L226 Difference]: Without dead ends: 848 [2020-10-28 19:47:10,554 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-10-28 19:47:10,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 848 states. [2020-10-28 19:47:10,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 848 to 551. [2020-10-28 19:47:10,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 551 states. [2020-10-28 19:47:10,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 720 transitions. [2020-10-28 19:47:10,666 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 720 transitions. Word has length 84 [2020-10-28 19:47:10,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 19:47:10,667 INFO L481 AbstractCegarLoop]: Abstraction has 551 states and 720 transitions. [2020-10-28 19:47:10,667 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 19:47:10,667 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 720 transitions. [2020-10-28 19:47:10,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-28 19:47:10,670 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 19:47:10,670 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] [2020-10-28 19:47:10,670 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 19:47:10,671 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 19:47:10,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 19:47:10,671 INFO L82 PathProgramCache]: Analyzing trace with hash -1492376688, now seen corresponding path program 1 times [2020-10-28 19:47:10,672 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 19:47:10,672 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [198193527] [2020-10-28 19:47:10,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 19:47:10,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:10,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:10,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:10,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:12,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:15,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:15,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-10-28 19:47:15,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 19:47:15,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-28 19:47:15,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:15,699 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:15,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 19:47:15,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-10-28 19:47:15,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 19:47:15,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:15,833 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-28 19:47:15,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 19:47:15,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:15,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:15,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:15,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:47:15,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:15,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 19:47:15,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:15,847 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:15,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:47:15,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:47:15,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:47:15,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:15,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 19:47:15,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:15,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:15,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:15,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:47:15,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:15,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:47:15,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:15,866 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:15,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:47:15,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:47:15,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:47:15,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:15,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 19:47:15,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:15,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:15,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:15,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:47:15,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:15,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:47:15,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:15,872 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:15,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:47:15,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:47:15,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:47:15,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:15,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 19:47:15,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:15,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:15,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:15,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 19:47:15,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:15,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:47:15,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:15,890 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:15,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:47:15,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:47:15,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:47:15,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:15,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-28 19:47:15,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:15,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:15,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:15,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:47:15,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:15,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:47:15,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:15,895 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:15,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:47:15,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:47:15,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:47:15,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:15,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-28 19:47:15,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:15,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:15,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:15,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:16,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:16,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-28 19:47:16,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 19:47:16,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 462 [2020-10-28 19:47:16,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:16,368 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:16,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 19:47:16,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-10-28 19:47:16,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 19:47:16,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 19:47:16,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 19:47:16,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:16,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:16,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:16,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:47:16,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:16,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:47:16,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:16,430 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:16,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:47:16,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:47:16,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:47:16,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 19:47:16,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 19:47:16,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:16,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:16,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:16,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:47:16,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:16,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:47:16,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:16,438 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:16,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:47:16,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:47:16,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:47:16,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 19:47:16,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 19:47:16,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:16,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:16,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:16,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 19:47:16,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:16,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 19:47:16,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:16,451 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:16,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 19:47:16,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:47:16,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 19:47:16,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 19:47:16,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-28 19:47:16,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:16,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:16,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:16,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:47:16,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:16,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:47:16,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:16,494 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:16,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:47:16,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-28 19:47:16,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:47:16,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 19:47:16,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-28 19:47:16,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:16,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:16,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:16,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 19:47:16,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:16,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:47:16,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:16,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:16,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:47:16,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 19:47:16,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:47:16,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 19:47:16,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 19:47:16,520 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [198193527] [2020-10-28 19:47:16,521 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 19:47:16,521 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-28 19:47:16,521 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451970596] [2020-10-28 19:47:16,522 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-28 19:47:16,522 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 19:47:16,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-28 19:47:16,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-28 19:47:16,523 INFO L87 Difference]: Start difference. First operand 551 states and 720 transitions. Second operand 9 states. [2020-10-28 19:47:17,102 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-28 19:47:17,240 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-28 19:47:17,384 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-28 19:47:17,551 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-28 19:47:18,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 19:47:18,865 INFO L93 Difference]: Finished difference Result 1190 states and 1588 transitions. [2020-10-28 19:47:18,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-28 19:47:18,865 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 84 [2020-10-28 19:47:18,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 19:47:18,870 INFO L225 Difference]: With dead ends: 1190 [2020-10-28 19:47:18,871 INFO L226 Difference]: Without dead ends: 660 [2020-10-28 19:47:18,873 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2020-10-28 19:47:18,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 660 states. [2020-10-28 19:47:18,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 660 to 566. [2020-10-28 19:47:18,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 566 states. [2020-10-28 19:47:18,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 732 transitions. [2020-10-28 19:47:18,951 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 732 transitions. Word has length 84 [2020-10-28 19:47:18,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 19:47:18,952 INFO L481 AbstractCegarLoop]: Abstraction has 566 states and 732 transitions. [2020-10-28 19:47:18,952 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-28 19:47:18,952 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 732 transitions. [2020-10-28 19:47:18,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-28 19:47:18,954 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 19:47:18,954 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] [2020-10-28 19:47:18,954 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 19:47:18,954 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 19:47:18,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 19:47:18,955 INFO L82 PathProgramCache]: Analyzing trace with hash -790776814, now seen corresponding path program 1 times [2020-10-28 19:47:18,955 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 19:47:18,956 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1742808614] [2020-10-28 19:47:18,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 19:47:18,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:18,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:19,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:19,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:22,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:22,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-10-28 19:47:22,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 19:47:22,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3079 [2020-10-28 19:47:22,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:22,054 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:22,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 19:47:22,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-10-28 19:47:22,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 19:47:22,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:22,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 19:47:22,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:22,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:22,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:22,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:47:22,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:22,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 19:47:22,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:22,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:22,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:47:22,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:47:22,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:47:22,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:22,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 19:47:22,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:22,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:22,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:22,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:47:22,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:22,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:47:22,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:22,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:22,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:47:22,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:47:22,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:47:22,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:22,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 19:47:22,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:22,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:22,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:22,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:47:22,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:22,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:47:22,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:22,211 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:22,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:47:22,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:47:22,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:47:22,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:22,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 19:47:22,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:22,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:22,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:22,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 19:47:22,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:22,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 19:47:22,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:22,229 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:22,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:47:22,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:47:22,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:47:22,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:22,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-28 19:47:22,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:22,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:22,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:22,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:47:22,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:22,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:47:22,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:22,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:22,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:47:22,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:47:22,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:47:22,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:22,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-28 19:47:22,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:22,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:22,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:22,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:22,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-28 19:47:22,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 19:47:22,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-28 19:47:22,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:22,347 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:22,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 19:47:22,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-28 19:47:22,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 19:47:22,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:22,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 19:47:22,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:22,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:22,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:22,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:47:22,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:22,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:47:22,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:22,402 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:22,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:47:22,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:47:22,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:47:22,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:22,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 19:47:22,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:22,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:22,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:22,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:47:22,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:22,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 19:47:22,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:22,427 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:22,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 19:47:22,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:47:22,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 19:47:22,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:22,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 19:47:22,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:22,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:22,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:22,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 19:47:22,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:22,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:47:22,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:22,468 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:22,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:47:22,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-28 19:47:22,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:47:22,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:22,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-28 19:47:22,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:22,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:22,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:22,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:47:22,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:22,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:47:22,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:22,480 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:22,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:47:22,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-28 19:47:22,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:47:22,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:22,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-28 19:47:22,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:22,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:22,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:22,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 19:47:22,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:22,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 19:47:22,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:22,489 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:22,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:47:22,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 19:47:22,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:47:22,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:22,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 19:47:22,506 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1742808614] [2020-10-28 19:47:22,506 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 19:47:22,506 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-28 19:47:22,506 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622525679] [2020-10-28 19:47:22,508 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-28 19:47:22,508 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 19:47:22,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-28 19:47:22,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-28 19:47:22,510 INFO L87 Difference]: Start difference. First operand 566 states and 732 transitions. Second operand 9 states. [2020-10-28 19:47:22,923 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-28 19:47:23,070 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-28 19:47:23,255 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-28 19:47:23,433 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-28 19:47:24,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 19:47:24,832 INFO L93 Difference]: Finished difference Result 1277 states and 1691 transitions. [2020-10-28 19:47:24,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-28 19:47:24,833 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 84 [2020-10-28 19:47:24,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 19:47:24,840 INFO L225 Difference]: With dead ends: 1277 [2020-10-28 19:47:24,840 INFO L226 Difference]: Without dead ends: 732 [2020-10-28 19:47:24,843 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2020-10-28 19:47:24,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 732 states. [2020-10-28 19:47:24,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 732 to 596. [2020-10-28 19:47:24,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 596 states. [2020-10-28 19:47:24,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 762 transitions. [2020-10-28 19:47:24,947 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 762 transitions. Word has length 84 [2020-10-28 19:47:24,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 19:47:24,949 INFO L481 AbstractCegarLoop]: Abstraction has 596 states and 762 transitions. [2020-10-28 19:47:24,949 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-28 19:47:24,949 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 762 transitions. [2020-10-28 19:47:24,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-28 19:47:24,953 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 19:47:24,954 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] [2020-10-28 19:47:24,954 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 19:47:24,954 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 19:47:24,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 19:47:24,955 INFO L82 PathProgramCache]: Analyzing trace with hash -367130092, now seen corresponding path program 1 times [2020-10-28 19:47:24,955 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 19:47:24,955 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [780170782] [2020-10-28 19:47:24,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 19:47:24,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:24,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:25,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:25,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:25,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-10-28 19:47:25,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 19:47:25,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 733 [2020-10-28 19:47:25,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:25,706 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:25,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 19:47:25,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 49 [2020-10-28 19:47:25,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 19:47:25,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:25,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 19:47:25,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:25,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:25,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:25,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:47:25,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:25,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 19:47:25,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:25,843 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:25,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:47:25,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:47:25,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:47:25,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:25,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 19:47:25,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:25,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:25,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:25,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:47:25,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:25,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:47:25,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:25,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:25,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:47:25,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:47:25,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:47:25,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:25,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 19:47:25,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:25,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:25,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:25,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:47:25,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:25,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:47:25,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:25,867 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:25,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:47:25,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:47:25,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:47:25,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:25,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 19:47:25,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:25,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:25,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:25,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 19:47:25,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:25,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:47:25,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:25,885 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:25,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:47:25,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:47:25,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:47:25,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:25,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-28 19:47:25,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:25,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:25,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:25,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:47:25,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:25,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:47:25,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:25,890 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:25,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:47:25,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:47:25,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:47:25,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:25,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-28 19:47:25,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:25,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:25,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:25,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-28 19:47:25,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:25,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 19:47:25,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:25,918 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:25,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 19:47:25,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 19:47:25,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 19:47:25,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:25,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 19:47:25,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:25,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:25,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:25,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:47:25,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:25,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 19:47:25,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:25,966 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:25,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 19:47:25,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:47:25,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 19:47:25,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:26,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 19:47:26,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:26,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:26,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:26,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:47:26,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:26,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:47:26,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:26,012 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:26,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:47:26,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 19:47:26,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:47:26,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:26,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 19:47:26,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:26,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:26,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:26,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 19:47:26,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:26,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:47:26,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:26,021 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:26,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:47:26,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-28 19:47:26,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:47:26,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:26,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-28 19:47:26,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:26,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:26,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:26,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:47:26,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:26,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:47:26,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:26,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:26,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:47:26,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-28 19:47:26,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:47:26,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:26,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-28 19:47:26,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:26,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:26,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:26,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 19:47:26,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:26,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:47:26,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:26,033 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:26,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:47:26,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 19:47:26,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:47:26,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:26,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 19:47:26,047 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [780170782] [2020-10-28 19:47:26,047 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 19:47:26,047 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-28 19:47:26,047 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388531174] [2020-10-28 19:47:26,048 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-28 19:47:26,048 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 19:47:26,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-28 19:47:26,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-28 19:47:26,049 INFO L87 Difference]: Start difference. First operand 596 states and 762 transitions. Second operand 9 states. [2020-10-28 19:47:26,364 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-28 19:47:26,514 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-28 19:47:26,668 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-28 19:47:26,812 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-28 19:47:28,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 19:47:28,384 INFO L93 Difference]: Finished difference Result 1337 states and 1745 transitions. [2020-10-28 19:47:28,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 19:47:28,384 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 84 [2020-10-28 19:47:28,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 19:47:28,395 INFO L225 Difference]: With dead ends: 1337 [2020-10-28 19:47:28,396 INFO L226 Difference]: Without dead ends: 762 [2020-10-28 19:47:28,399 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2020-10-28 19:47:28,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 762 states. [2020-10-28 19:47:28,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 762 to 626. [2020-10-28 19:47:28,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 626 states. [2020-10-28 19:47:28,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 626 states to 626 states and 792 transitions. [2020-10-28 19:47:28,495 INFO L78 Accepts]: Start accepts. Automaton has 626 states and 792 transitions. Word has length 84 [2020-10-28 19:47:28,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 19:47:28,496 INFO L481 AbstractCegarLoop]: Abstraction has 626 states and 792 transitions. [2020-10-28 19:47:28,496 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-28 19:47:28,496 INFO L276 IsEmpty]: Start isEmpty. Operand 626 states and 792 transitions. [2020-10-28 19:47:28,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-28 19:47:28,497 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 19:47:28,498 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] [2020-10-28 19:47:28,498 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 19:47:28,498 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 19:47:28,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 19:47:28,499 INFO L82 PathProgramCache]: Analyzing trace with hash -848210350, now seen corresponding path program 1 times [2020-10-28 19:47:28,499 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 19:47:28,501 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [626469496] [2020-10-28 19:47:28,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 19:47:28,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:28,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:28,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:28,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-10-28 19:47:28,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:28,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 250 [2020-10-28 19:47:28,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:28,772 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:28,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-28 19:47:28,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 19:47:28,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-28 19:47:28,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:28,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 19:47:28,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:28,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:28,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:28,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:47:28,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:28,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 19:47:28,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:28,922 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:28,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:47:28,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:47:28,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:47:28,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:28,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 19:47:28,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:28,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:28,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:28,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:47:28,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:28,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:47:28,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:28,955 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:28,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:47:28,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:47:28,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 19:47:28,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:28,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 19:47:28,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:28,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:28,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:28,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:47:28,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:28,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:47:28,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:28,960 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:28,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:47:28,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:47:28,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 19:47:28,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:28,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 19:47:28,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:28,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:28,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:28,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 19:47:28,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:28,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 19:47:28,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:28,988 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:28,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:47:28,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:47:28,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 19:47:28,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:28,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-28 19:47:28,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:28,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:28,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:28,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:47:28,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:28,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:47:28,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:28,993 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:28,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:47:28,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:47:28,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 19:47:28,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:28,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-28 19:47:28,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:29,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:29,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:29,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-28 19:47:29,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:29,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 19:47:29,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:29,010 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:29,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:47:29,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:47:29,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-28 19:47:29,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:29,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 19:47:29,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:29,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:29,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:29,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:47:29,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:29,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:47:29,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:29,016 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:29,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:47:29,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:47:29,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:47:29,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:29,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 19:47:29,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:29,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:29,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:29,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:47:29,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:29,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:47:29,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:29,021 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:29,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:47:29,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:47:29,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:47:29,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:29,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 19:47:29,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:29,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:29,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:29,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 19:47:29,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:29,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:47:29,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:29,026 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:29,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:47:29,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:47:29,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:47:29,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:29,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-28 19:47:29,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:29,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:29,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:29,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:47:29,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:29,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:47:29,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:29,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:29,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:47:29,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:47:29,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 19:47:29,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:29,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-28 19:47:29,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:29,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:29,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:29,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 19:47:29,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:29,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:47:29,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:29,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:29,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:47:29,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:47:29,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 19:47:29,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:29,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 19:47:29,051 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [626469496] [2020-10-28 19:47:29,051 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 19:47:29,051 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-28 19:47:29,052 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165136343] [2020-10-28 19:47:29,052 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 19:47:29,052 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 19:47:29,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 19:47:29,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-28 19:47:29,053 INFO L87 Difference]: Start difference. First operand 626 states and 792 transitions. Second operand 8 states. [2020-10-28 19:47:29,940 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-28 19:47:30,094 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-28 19:47:31,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 19:47:31,750 INFO L93 Difference]: Finished difference Result 1856 states and 2438 transitions. [2020-10-28 19:47:31,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-28 19:47:31,752 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 84 [2020-10-28 19:47:31,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 19:47:31,764 INFO L225 Difference]: With dead ends: 1856 [2020-10-28 19:47:31,764 INFO L226 Difference]: Without dead ends: 1252 [2020-10-28 19:47:31,768 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=92, Invalid=180, Unknown=0, NotChecked=0, Total=272 [2020-10-28 19:47:31,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1252 states. [2020-10-28 19:47:31,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1252 to 1117. [2020-10-28 19:47:31,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1117 states. [2020-10-28 19:47:31,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1117 states to 1117 states and 1456 transitions. [2020-10-28 19:47:31,932 INFO L78 Accepts]: Start accepts. Automaton has 1117 states and 1456 transitions. Word has length 84 [2020-10-28 19:47:31,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 19:47:31,934 INFO L481 AbstractCegarLoop]: Abstraction has 1117 states and 1456 transitions. [2020-10-28 19:47:31,934 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 19:47:31,934 INFO L276 IsEmpty]: Start isEmpty. Operand 1117 states and 1456 transitions. [2020-10-28 19:47:31,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-28 19:47:31,935 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 19:47:31,936 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] [2020-10-28 19:47:31,936 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-28 19:47:31,936 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 19:47:31,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 19:47:31,937 INFO L82 PathProgramCache]: Analyzing trace with hash 343400601, now seen corresponding path program 1 times [2020-10-28 19:47:31,937 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 19:47:31,938 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [427026531] [2020-10-28 19:47:31,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 19:47:31,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:31,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:31,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:32,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:32,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:32,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:32,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:35,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:35,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-28 19:47:35,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-28 19:47:35,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3294 [2020-10-28 19:47:35,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:35,258 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:35,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:47:35,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 96 [2020-10-28 19:47:35,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 19:47:35,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:35,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 19:47:35,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:35,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:35,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:35,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:47:35,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:35,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 19:47:35,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:35,384 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:35,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:47:35,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:47:35,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:47:35,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:35,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 19:47:35,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:35,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:35,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:35,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:47:35,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:35,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:47:35,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:35,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:35,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:47:35,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:47:35,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:47:35,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:35,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 19:47:35,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:35,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:35,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:35,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:47:35,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:35,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:47:35,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:35,410 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:35,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:47:35,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:47:35,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:47:35,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:35,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 19:47:35,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:35,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:35,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:35,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 19:47:35,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:35,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:47:35,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:35,436 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:35,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:47:35,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:47:35,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:47:35,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:35,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-28 19:47:35,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:35,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:35,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:35,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:47:35,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:35,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:47:35,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:35,439 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:35,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:47:35,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:47:35,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:47:35,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:35,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-28 19:47:35,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:35,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:35,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:35,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-28 19:47:35,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:35,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 19:47:35,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:35,449 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:35,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:47:35,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:47:35,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:47:35,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:35,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 19:47:35,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:35,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:35,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:35,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:47:35,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:35,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:47:35,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:35,456 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:35,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:47:35,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:47:35,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:47:35,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:35,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 19:47:35,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:35,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:35,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:35,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:47:35,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:35,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:47:35,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:35,460 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:35,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:47:35,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:47:35,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:47:35,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:35,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 19:47:35,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:35,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:35,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:35,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 19:47:35,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:35,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:47:35,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:35,468 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:35,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:47:35,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:47:35,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:47:35,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:35,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-28 19:47:35,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:35,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:35,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:35,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:47:35,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:35,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:47:35,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:35,474 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:35,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:47:35,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:47:35,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:47:35,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:35,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-28 19:47:35,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:35,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:35,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:35,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 19:47:35,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:35,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:47:35,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:35,483 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:35,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:47:35,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:47:35,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-28 19:47:35,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:35,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 19:47:35,494 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [427026531] [2020-10-28 19:47:35,495 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 19:47:35,495 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 19:47:35,495 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174118468] [2020-10-28 19:47:35,495 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 19:47:35,495 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 19:47:35,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 19:47:35,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-28 19:47:35,497 INFO L87 Difference]: Start difference. First operand 1117 states and 1456 transitions. Second operand 6 states. [2020-10-28 19:47:37,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 19:47:37,675 INFO L93 Difference]: Finished difference Result 3429 states and 4619 transitions. [2020-10-28 19:47:37,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 19:47:37,676 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 85 [2020-10-28 19:47:37,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 19:47:37,694 INFO L225 Difference]: With dead ends: 3429 [2020-10-28 19:47:37,694 INFO L226 Difference]: Without dead ends: 2334 [2020-10-28 19:47:37,701 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-10-28 19:47:37,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2334 states. [2020-10-28 19:47:37,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2334 to 2250. [2020-10-28 19:47:37,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2250 states. [2020-10-28 19:47:38,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2250 states to 2250 states and 2994 transitions. [2020-10-28 19:47:38,009 INFO L78 Accepts]: Start accepts. Automaton has 2250 states and 2994 transitions. Word has length 85 [2020-10-28 19:47:38,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 19:47:38,009 INFO L481 AbstractCegarLoop]: Abstraction has 2250 states and 2994 transitions. [2020-10-28 19:47:38,009 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 19:47:38,009 INFO L276 IsEmpty]: Start isEmpty. Operand 2250 states and 2994 transitions. [2020-10-28 19:47:38,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-10-28 19:47:38,012 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 19:47:38,012 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] [2020-10-28 19:47:38,012 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-28 19:47:38,013 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 19:47:38,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 19:47:38,013 INFO L82 PathProgramCache]: Analyzing trace with hash 475410873, now seen corresponding path program 1 times [2020-10-28 19:47:38,013 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 19:47:38,018 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [879986937] [2020-10-28 19:47:38,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 19:47:38,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:38,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:38,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:38,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:38,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:39,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:39,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-10-28 19:47:39,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 19:47:39,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1356 [2020-10-28 19:47:39,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:39,431 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:39,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 19:47:39,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 19:47:39,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-28 19:47:39,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:39,585 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-28 19:47:39,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 19:47:39,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:39,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:39,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:39,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:47:39,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:39,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 19:47:39,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:39,598 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:39,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:47:39,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:47:39,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:47:39,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:39,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 19:47:39,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:39,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:39,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:39,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:47:39,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:39,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:47:39,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:39,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:39,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:47:39,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:47:39,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 19:47:39,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:39,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 19:47:39,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:39,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:39,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:39,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:47:39,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:39,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:47:39,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:39,627 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:39,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:47:39,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:47:39,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 19:47:39,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:39,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 19:47:39,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:39,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:39,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:39,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 19:47:39,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:39,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 19:47:39,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:39,649 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:39,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:47:39,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:47:39,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 19:47:39,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:39,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-28 19:47:39,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:39,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:39,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:39,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:47:39,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:39,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:47:39,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:39,655 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:39,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:47:39,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:47:39,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 19:47:39,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:39,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-28 19:47:39,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:39,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:39,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:39,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:39,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-28 19:47:39,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 19:47:39,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 19:47:39,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:39,675 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:39,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:47:39,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:47:39,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-28 19:47:39,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:39,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 19:47:39,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:39,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:39,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:39,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:47:39,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:39,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:47:39,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:39,682 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:39,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:47:39,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:47:39,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:47:39,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:39,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 19:47:39,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:39,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:39,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:39,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:47:39,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:39,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:47:39,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:39,688 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:39,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:47:39,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:47:39,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:47:39,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:39,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 19:47:39,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:39,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:39,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:39,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 19:47:39,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:39,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:47:39,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:39,694 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:39,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:47:39,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:47:39,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:47:39,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:39,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-28 19:47:39,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:39,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:39,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:39,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:47:39,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:39,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:47:39,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:39,699 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:39,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:47:39,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:47:39,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 19:47:39,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:39,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-28 19:47:39,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:39,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:39,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:39,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 19:47:39,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:39,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:47:39,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:39,706 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:39,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:47:39,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:47:39,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 19:47:39,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:39,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 19:47:39,718 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [879986937] [2020-10-28 19:47:39,719 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 19:47:39,719 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 19:47:39,719 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102814461] [2020-10-28 19:47:39,719 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 19:47:39,719 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 19:47:39,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 19:47:39,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-28 19:47:39,720 INFO L87 Difference]: Start difference. First operand 2250 states and 2994 transitions. Second operand 6 states. [2020-10-28 19:47:42,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 19:47:42,275 INFO L93 Difference]: Finished difference Result 6870 states and 9706 transitions. [2020-10-28 19:47:42,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 19:47:42,276 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 86 [2020-10-28 19:47:42,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 19:47:42,312 INFO L225 Difference]: With dead ends: 6870 [2020-10-28 19:47:42,312 INFO L226 Difference]: Without dead ends: 4647 [2020-10-28 19:47:42,328 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-10-28 19:47:42,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4647 states. [2020-10-28 19:47:42,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4647 to 4225. [2020-10-28 19:47:42,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4225 states. [2020-10-28 19:47:42,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4225 states to 4225 states and 5840 transitions. [2020-10-28 19:47:42,968 INFO L78 Accepts]: Start accepts. Automaton has 4225 states and 5840 transitions. Word has length 86 [2020-10-28 19:47:42,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 19:47:42,970 INFO L481 AbstractCegarLoop]: Abstraction has 4225 states and 5840 transitions. [2020-10-28 19:47:42,970 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 19:47:42,970 INFO L276 IsEmpty]: Start isEmpty. Operand 4225 states and 5840 transitions. [2020-10-28 19:47:42,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-10-28 19:47:42,974 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 19:47:42,975 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 19:47:42,975 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-28 19:47:42,975 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 19:47:42,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 19:47:42,977 INFO L82 PathProgramCache]: Analyzing trace with hash 927695332, now seen corresponding path program 1 times [2020-10-28 19:47:42,977 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 19:47:42,977 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [778284130] [2020-10-28 19:47:42,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 19:47:42,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:43,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:43,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:43,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:43,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:43,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:46,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:46,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-28 19:47:46,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 19:47:46,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3397 [2020-10-28 19:47:46,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:46,393 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:46,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:47:46,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-28 19:47:46,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-28 19:47:46,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:46,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 19:47:46,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:46,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:46,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:46,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:47:46,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:46,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 19:47:46,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:46,527 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:46,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:47:46,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:47:46,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:47:46,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:46,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 19:47:46,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:46,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:46,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:46,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:47:46,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:46,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:47:46,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:46,553 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:46,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:47:46,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:47:46,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 19:47:46,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:46,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 19:47:46,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:46,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:46,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:46,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:47:46,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:46,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:47:46,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:46,558 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:46,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:47:46,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:47:46,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 19:47:46,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:46,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 19:47:46,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:46,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:46,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:46,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 19:47:46,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:46,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 19:47:46,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:46,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:46,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:47:46,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 19:47:46,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 19:47:46,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 19:47:46,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-28 19:47:46,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:46,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:46,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:46,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:47:46,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:46,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:47:46,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:46,597 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:46,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:47:46,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-28 19:47:46,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:47:46,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:46,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-28 19:47:46,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:46,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:46,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:46,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-28 19:47:46,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:46,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 19:47:46,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:46,610 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:46,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:47:46,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-10-28 19:47:46,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:47:46,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:46,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 19:47:46,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:46,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:46,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:46,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:47:46,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:46,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:47:46,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:46,616 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:46,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:47:46,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:47:46,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:47:46,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:46,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 19:47:46,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:46,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:46,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:46,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:47:46,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:46,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:47:46,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:46,621 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:46,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:47:46,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:47:46,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:47:46,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:46,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 19:47:46,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:46,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:46,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:46,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 19:47:46,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:46,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:47:46,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:46,626 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:46,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:47:46,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:47:46,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:47:46,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:46,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-28 19:47:46,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:46,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:46,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:46,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:47:46,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:46,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:47:46,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:46,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:46,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:47:46,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-28 19:47:46,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:47:46,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:46,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-28 19:47:46,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:46,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:46,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:46,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 19:47:46,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:46,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:47:46,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:46,637 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:46,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:47:46,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 19:47:46,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:47:46,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:46,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-28 19:47:46,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:46,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:46,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:46,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 19:47:46,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:46,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 19:47:46,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:46,669 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:46,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:47:46,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-28 19:47:46,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:47:46,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:46,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 19:47:46,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:46,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:46,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:46,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 19:47:46,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:46,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:47:46,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:46,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:46,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:47:46,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:47:46,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:47:46,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:46,707 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 19:47:46,708 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [778284130] [2020-10-28 19:47:46,708 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 19:47:46,708 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-28 19:47:46,708 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243244872] [2020-10-28 19:47:46,708 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-28 19:47:46,709 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 19:47:46,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-28 19:47:46,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-28 19:47:46,711 INFO L87 Difference]: Start difference. First operand 4225 states and 5840 transitions. Second operand 9 states. [2020-10-28 19:47:47,064 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-28 19:47:49,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 19:47:49,547 INFO L93 Difference]: Finished difference Result 9796 states and 14590 transitions. [2020-10-28 19:47:49,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-28 19:47:49,548 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 97 [2020-10-28 19:47:49,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 19:47:49,603 INFO L225 Difference]: With dead ends: 9796 [2020-10-28 19:47:49,603 INFO L226 Difference]: Without dead ends: 5592 [2020-10-28 19:47:49,628 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=111, Invalid=269, Unknown=0, NotChecked=0, Total=380 [2020-10-28 19:47:49,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5592 states. [2020-10-28 19:47:50,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5592 to 4681. [2020-10-28 19:47:50,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4681 states. [2020-10-28 19:47:50,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4681 states to 4681 states and 6829 transitions. [2020-10-28 19:47:50,391 INFO L78 Accepts]: Start accepts. Automaton has 4681 states and 6829 transitions. Word has length 97 [2020-10-28 19:47:50,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 19:47:50,391 INFO L481 AbstractCegarLoop]: Abstraction has 4681 states and 6829 transitions. [2020-10-28 19:47:50,391 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-28 19:47:50,391 INFO L276 IsEmpty]: Start isEmpty. Operand 4681 states and 6829 transitions. [2020-10-28 19:47:50,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-10-28 19:47:50,393 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 19:47:50,393 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 19:47:50,394 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-28 19:47:50,394 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 19:47:50,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 19:47:50,394 INFO L82 PathProgramCache]: Analyzing trace with hash 1985533410, now seen corresponding path program 1 times [2020-10-28 19:47:50,394 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 19:47:50,395 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1594534719] [2020-10-28 19:47:50,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 19:47:50,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:50,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:50,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:51,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:51,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-28 19:47:51,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 19:47:51,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 981 [2020-10-28 19:47:51,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:51,398 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:51,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-28 19:47:51,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 19:47:51,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 121 [2020-10-28 19:47:51,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:51,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 19:47:51,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:51,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:51,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:51,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:47:51,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:51,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 19:47:51,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:51,576 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:51,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:47:51,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:47:51,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:47:51,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:51,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 19:47:51,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:51,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:51,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:51,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:47:51,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:51,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:47:51,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:51,600 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:51,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:47:51,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:47:51,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 19:47:51,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:51,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 19:47:51,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:51,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:51,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:51,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:47:51,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:51,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:47:51,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:51,605 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:51,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:47:51,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:47:51,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 19:47:51,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 19:47:51,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 19:47:51,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:51,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:51,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:51,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 19:47:51,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:51,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 19:47:51,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:51,641 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:51,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:47:51,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:47:51,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 19:47:51,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:51,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-28 19:47:51,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:51,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:51,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:51,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:47:51,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:51,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:47:51,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:51,647 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:51,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:47:51,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:47:51,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 19:47:51,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 19:47:51,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-28 19:47:51,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:51,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:51,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:51,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-28 19:47:51,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:51,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 19:47:51,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:51,666 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:51,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:47:51,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:47:51,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-28 19:47:51,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:51,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 19:47:51,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:51,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:51,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:51,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:47:51,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:51,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:47:51,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:51,674 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:51,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:47:51,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:47:51,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:47:51,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:51,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 19:47:51,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:51,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:51,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:51,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:47:51,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:51,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:47:51,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:51,678 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:51,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:47:51,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:47:51,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:47:51,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:51,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 19:47:51,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:51,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:51,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:51,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 19:47:51,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:51,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:47:51,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:51,683 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:51,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:47:51,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:47:51,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:47:51,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:51,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-28 19:47:51,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:51,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:51,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:51,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:47:51,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:51,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:47:51,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:51,690 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:51,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:47:51,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:47:51,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 19:47:51,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 19:47:51,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-28 19:47:51,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:51,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:51,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:51,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 19:47:51,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:47:51,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 19:47:51,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:51,698 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:51,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:47:51,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:47:51,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 19:47:51,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 19:47:51,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-28 19:47:51,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:51,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:51,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:51,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:51,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 19:47:51,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 19:47:51,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-28 19:47:51,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:51,774 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:51,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 19:47:51,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 19:47:51,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-28 19:47:51,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 19:47:51,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 19:47:51,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:47:51,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:51,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:47:51,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:47:51,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 19:47:51,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 19:47:51,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 19:47:51,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:47:51,882 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:47:51,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:47:51,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:47:51,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 19:47:51,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:47:51,911 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 19:47:51,912 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1594534719] [2020-10-28 19:47:51,912 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 19:47:51,912 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-28 19:47:51,912 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346931811] [2020-10-28 19:47:51,913 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-28 19:47:51,913 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 19:47:51,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-28 19:47:51,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2020-10-28 19:47:51,914 INFO L87 Difference]: Start difference. First operand 4681 states and 6829 transitions. Second operand 13 states. [2020-10-28 19:47:52,104 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-28 19:47:53,567 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-28 19:47:53,951 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-28 19:47:54,166 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-28 19:47:55,732 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 97 [2020-10-28 19:48:01,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 19:48:01,085 INFO L93 Difference]: Finished difference Result 15336 states and 25228 transitions. [2020-10-28 19:48:01,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2020-10-28 19:48:01,085 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 97 [2020-10-28 19:48:01,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 19:48:01,176 INFO L225 Difference]: With dead ends: 15336 [2020-10-28 19:48:01,176 INFO L226 Difference]: Without dead ends: 10677 [2020-10-28 19:48:01,221 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 621 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=479, Invalid=1777, Unknown=0, NotChecked=0, Total=2256 [2020-10-28 19:48:01,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10677 states. [2020-10-28 19:48:02,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10677 to 9060. [2020-10-28 19:48:02,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9060 states. [2020-10-28 19:48:02,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9060 states to 9060 states and 14214 transitions. [2020-10-28 19:48:02,549 INFO L78 Accepts]: Start accepts. Automaton has 9060 states and 14214 transitions. Word has length 97 [2020-10-28 19:48:02,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 19:48:02,550 INFO L481 AbstractCegarLoop]: Abstraction has 9060 states and 14214 transitions. [2020-10-28 19:48:02,550 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-28 19:48:02,550 INFO L276 IsEmpty]: Start isEmpty. Operand 9060 states and 14214 transitions. [2020-10-28 19:48:02,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-10-28 19:48:02,552 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 19:48:02,552 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] [2020-10-28 19:48:02,553 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-28 19:48:02,553 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 19:48:02,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 19:48:02,553 INFO L82 PathProgramCache]: Analyzing trace with hash -159249048, now seen corresponding path program 1 times [2020-10-28 19:48:02,553 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 19:48:02,554 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1321327353] [2020-10-28 19:48:02,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 19:48:02,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:48:02,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:48:02,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:48:02,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:48:04,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:48:04,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-28 19:48:04,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 19:48:04,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2071 [2020-10-28 19:48:04,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:48:04,647 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:48:04,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 19:48:04,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-10-28 19:48:04,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-28 19:48:04,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:48:04,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 19:48:04,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:48:04,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:48:04,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:48:04,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:48:04,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:48:04,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 19:48:04,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:48:04,786 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:48:04,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:48:04,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:48:04,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:48:04,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 19:48:04,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 19:48:04,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:48:04,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:48:04,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:48:04,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:48:04,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:48:04,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:48:04,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:48:04,811 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:48:04,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:48:04,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:48:04,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:48:04,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:48:04,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 19:48:04,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:48:04,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:48:04,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:48:04,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:48:04,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:48:04,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 19:48:04,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:48:04,822 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:48:04,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:48:04,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:48:04,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:48:04,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:48:04,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 19:48:04,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:48:04,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:48:04,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:48:04,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 19:48:04,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:48:04,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 19:48:04,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:48:04,849 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:48:04,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:48:04,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:48:04,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-28 19:48:04,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:48:04,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-28 19:48:04,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:48:04,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:48:04,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:48:04,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:48:04,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:48:04,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:48:04,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:48:04,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:48:04,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:48:04,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:48:04,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 19:48:04,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:48:04,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-28 19:48:04,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:48:04,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:48:04,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:48:04,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-28 19:48:04,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:48:04,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 19:48:04,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:48:04,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:48:04,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 19:48:04,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 19:48:04,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-28 19:48:04,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:48:04,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 19:48:04,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:48:04,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:48:04,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:48:04,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:48:04,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:48:04,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:48:04,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:48:04,898 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:48:04,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:48:04,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:48:04,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 19:48:04,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:48:04,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 19:48:04,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:48:04,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:48:04,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:48:04,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:48:04,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:48:04,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:48:04,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:48:04,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:48:04,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:48:04,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:48:04,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 19:48:04,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:48:04,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 19:48:04,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:48:04,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:48:04,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:48:04,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 19:48:04,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:48:04,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:48:04,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:48:04,915 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:48:04,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:48:04,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:48:04,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 19:48:04,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:48:04,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-28 19:48:04,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:48:04,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:48:04,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:48:04,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:48:04,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:48:04,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:48:04,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:48:04,921 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:48:04,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:48:04,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:48:04,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 19:48:04,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:48:04,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-28 19:48:04,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:48:04,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:48:04,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:48:04,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 19:48:04,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:48:04,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:48:04,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:48:04,927 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:48:04,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:48:04,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:48:04,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 19:48:04,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:48:04,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-28 19:48:04,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:48:04,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:48:04,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:48:04,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 19:48:04,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:48:04,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 19:48:04,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:48:04,957 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:48:04,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:48:04,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:48:04,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-28 19:48:04,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:48:04,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 19:48:04,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:48:04,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:48:04,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:48:04,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 19:48:04,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:48:04,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:48:04,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:48:04,978 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:48:04,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:48:04,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:48:04,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:48:04,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:48:04,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 19:48:04,996 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1321327353] [2020-10-28 19:48:04,996 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 19:48:04,996 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-28 19:48:04,996 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890760606] [2020-10-28 19:48:04,997 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-28 19:48:04,997 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 19:48:04,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-28 19:48:04,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-28 19:48:04,998 INFO L87 Difference]: Start difference. First operand 9060 states and 14214 transitions. Second operand 9 states. [2020-10-28 19:48:11,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 19:48:11,708 INFO L93 Difference]: Finished difference Result 33329 states and 76116 transitions. [2020-10-28 19:48:11,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-28 19:48:11,708 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 102 [2020-10-28 19:48:11,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 19:48:11,927 INFO L225 Difference]: With dead ends: 33329 [2020-10-28 19:48:11,927 INFO L226 Difference]: Without dead ends: 24291 [2020-10-28 19:48:12,065 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 179 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=244, Invalid=568, Unknown=0, NotChecked=0, Total=812 [2020-10-28 19:48:12,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24291 states. [2020-10-28 19:48:15,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24291 to 19250. [2020-10-28 19:48:15,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19250 states. [2020-10-28 19:48:15,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19250 states to 19250 states and 34613 transitions. [2020-10-28 19:48:15,224 INFO L78 Accepts]: Start accepts. Automaton has 19250 states and 34613 transitions. Word has length 102 [2020-10-28 19:48:15,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 19:48:15,224 INFO L481 AbstractCegarLoop]: Abstraction has 19250 states and 34613 transitions. [2020-10-28 19:48:15,224 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-28 19:48:15,224 INFO L276 IsEmpty]: Start isEmpty. Operand 19250 states and 34613 transitions. [2020-10-28 19:48:15,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-10-28 19:48:15,227 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 19:48:15,227 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] [2020-10-28 19:48:15,227 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-28 19:48:15,228 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 19:48:15,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 19:48:15,228 INFO L82 PathProgramCache]: Analyzing trace with hash 1717233770, now seen corresponding path program 1 times [2020-10-28 19:48:15,228 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 19:48:15,228 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1418021651] [2020-10-28 19:48:15,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 19:48:15,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:48:15,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:48:15,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:48:15,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:48:16,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:48:16,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-28 19:48:16,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 19:48:16,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 988 [2020-10-28 19:48:16,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:48:16,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:48:16,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:48:16,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-28 19:48:16,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-28 19:48:16,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:48:16,357 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-28 19:48:16,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 19:48:16,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:48:16,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:48:16,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:48:16,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:48:16,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:48:16,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 19:48:16,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:48:16,367 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:48:16,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:48:16,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:48:16,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:48:16,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:48:16,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 19:48:16,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:48:16,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:48:16,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:48:16,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:48:16,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:48:16,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:48:16,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:48:16,386 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:48:16,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:48:16,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:48:16,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 19:48:16,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:48:16,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 19:48:16,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:48:16,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:48:16,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:48:16,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:48:16,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:48:16,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:48:16,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:48:16,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:48:16,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:48:16,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:48:16,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 19:48:16,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:48:16,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 19:48:16,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:48:16,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:48:16,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:48:16,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 19:48:16,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:48:16,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 19:48:16,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:48:16,418 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:48:16,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:48:16,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-28 19:48:16,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 19:48:16,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:48:16,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-28 19:48:16,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:48:16,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:48:16,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:48:16,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:48:16,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:48:16,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:48:16,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:48:16,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:48:16,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:48:16,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-28 19:48:16,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:48:16,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:48:16,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-28 19:48:16,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:48:16,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:48:16,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:48:16,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-28 19:48:16,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:48:16,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 19:48:16,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:48:16,448 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:48:16,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:48:16,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-10-28 19:48:16,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:48:16,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:48:16,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 19:48:16,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:48:16,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:48:16,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:48:16,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:48:16,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:48:16,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:48:16,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:48:16,454 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:48:16,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:48:16,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:48:16,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:48:16,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:48:16,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 19:48:16,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:48:16,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:48:16,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:48:16,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:48:16,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:48:16,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:48:16,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:48:16,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:48:16,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:48:16,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:48:16,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:48:16,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:48:16,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 19:48:16,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:48:16,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:48:16,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:48:16,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 19:48:16,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:48:16,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:48:16,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:48:16,463 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:48:16,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:48:16,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:48:16,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:48:16,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:48:16,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-28 19:48:16,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:48:16,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:48:16,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:48:16,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:48:16,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:48:16,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:48:16,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:48:16,468 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:48:16,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:48:16,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-28 19:48:16,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:48:16,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:48:16,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-28 19:48:16,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:48:16,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:48:16,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:48:16,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 19:48:16,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:48:16,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:48:16,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:48:16,473 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:48:16,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:48:16,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 19:48:16,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:48:16,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:48:16,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-28 19:48:16,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:48:16,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:48:16,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:48:16,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 19:48:16,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:48:16,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 19:48:16,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:48:16,504 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:48:16,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:48:16,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-28 19:48:16,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:48:16,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:48:16,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 19:48:16,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:48:16,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:48:16,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:48:16,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 19:48:16,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:48:16,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:48:16,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:48:16,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:48:16,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:48:16,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:48:16,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:48:16,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:48:16,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 19:48:16,539 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1418021651] [2020-10-28 19:48:16,540 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 19:48:16,540 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-28 19:48:16,540 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233424544] [2020-10-28 19:48:16,540 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-28 19:48:16,540 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 19:48:16,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-28 19:48:16,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-28 19:48:16,541 INFO L87 Difference]: Start difference. First operand 19250 states and 34613 transitions. Second operand 9 states. [2020-10-28 19:48:16,677 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-28 19:48:16,899 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-28 19:48:20,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 19:48:20,868 INFO L93 Difference]: Finished difference Result 41265 states and 77756 transitions. [2020-10-28 19:48:20,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-28 19:48:20,868 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 102 [2020-10-28 19:48:20,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 19:48:21,031 INFO L225 Difference]: With dead ends: 41265 [2020-10-28 19:48:21,031 INFO L226 Difference]: Without dead ends: 22036 [2020-10-28 19:48:21,151 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=111, Invalid=269, Unknown=0, NotChecked=0, Total=380 [2020-10-28 19:48:21,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22036 states. [2020-10-28 19:48:23,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22036 to 19244. [2020-10-28 19:48:23,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19244 states. [2020-10-28 19:48:23,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19244 states to 19244 states and 34600 transitions. [2020-10-28 19:48:23,743 INFO L78 Accepts]: Start accepts. Automaton has 19244 states and 34600 transitions. Word has length 102 [2020-10-28 19:48:23,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 19:48:23,743 INFO L481 AbstractCegarLoop]: Abstraction has 19244 states and 34600 transitions. [2020-10-28 19:48:23,743 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-28 19:48:23,744 INFO L276 IsEmpty]: Start isEmpty. Operand 19244 states and 34600 transitions. [2020-10-28 19:48:23,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-10-28 19:48:23,746 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 19:48:23,746 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] [2020-10-28 19:48:23,747 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-28 19:48:23,747 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 19:48:23,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 19:48:23,747 INFO L82 PathProgramCache]: Analyzing trace with hash -506046521, now seen corresponding path program 1 times [2020-10-28 19:48:23,747 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 19:48:23,748 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [436752432] [2020-10-28 19:48:23,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 19:48:23,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:48:23,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:48:23,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:48:25,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:48:25,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-28 19:48:25,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 19:48:25,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1625 [2020-10-28 19:48:25,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:48:25,394 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:48:25,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-28 19:48:25,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 19:48:25,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-10-28 19:48:25,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:48:25,600 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-28 19:48:25,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 19:48:25,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:48:25,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:48:25,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:48:25,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:48:25,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:48:25,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 19:48:25,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:48:25,613 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:48:25,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:48:25,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:48:25,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:48:25,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:48:25,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 19:48:25,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:48:25,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:48:25,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:48:25,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:48:25,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:48:25,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:48:25,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:48:25,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:48:25,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:48:25,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:48:25,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 19:48:25,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:48:25,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 19:48:25,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:48:25,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:48:25,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:48:25,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:48:25,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:48:25,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:48:25,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:48:25,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:48:25,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:48:25,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:48:25,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 19:48:25,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:48:25,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 19:48:25,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:48:25,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:48:25,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:48:25,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 19:48:25,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:48:25,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 19:48:25,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:48:25,674 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:48:25,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:48:25,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:48:25,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 19:48:25,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:48:25,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-28 19:48:25,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:48:25,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:48:25,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:48:25,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:48:25,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:48:25,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:48:25,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:48:25,679 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:48:25,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:48:25,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:48:25,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 19:48:25,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:48:25,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-28 19:48:25,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:48:25,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:48:25,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:48:25,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-28 19:48:25,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:48:25,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 19:48:25,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:48:25,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:48:25,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:48:25,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:48:25,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-28 19:48:25,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:48:25,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 19:48:25,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:48:25,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:48:25,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:48:25,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:48:25,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:48:25,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:48:25,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:48:25,699 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:48:25,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:48:25,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:48:25,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:48:25,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:48:25,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 19:48:25,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:48:25,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:48:25,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:48:25,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:48:25,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:48:25,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:48:25,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:48:25,705 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:48:25,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:48:25,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:48:25,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:48:25,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:48:25,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 19:48:25,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:48:25,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:48:25,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:48:25,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 19:48:25,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:48:25,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:48:25,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:48:25,710 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:48:25,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:48:25,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:48:25,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:48:25,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:48:25,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-28 19:48:25,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:48:25,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:48:25,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:48:25,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:48:25,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:48:25,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:48:25,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:48:25,717 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:48:25,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:48:25,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:48:25,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 19:48:25,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:48:25,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-28 19:48:25,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:48:25,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:48:25,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:48:25,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 19:48:25,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:48:25,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 19:48:25,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:48:25,724 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:48:25,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:48:25,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:48:25,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 19:48:25,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:48:25,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-28 19:48:25,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:48:25,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:48:25,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:48:25,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:48:25,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 19:48:25,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 19:48:25,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-28 19:48:25,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:48:25,783 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:48:25,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 19:48:25,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 19:48:25,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-28 19:48:25,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:48:25,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 19:48:25,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:48:25,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:48:25,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:48:25,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 19:48:25,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:48:25,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 19:48:25,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:48:25,865 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:48:25,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:48:25,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:48:25,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 19:48:25,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:48:25,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 19:48:25,898 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [436752432] [2020-10-28 19:48:25,898 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 19:48:25,898 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-28 19:48:25,898 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234682561] [2020-10-28 19:48:25,899 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-28 19:48:25,899 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 19:48:25,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-28 19:48:25,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2020-10-28 19:48:25,900 INFO L87 Difference]: Start difference. First operand 19244 states and 34600 transitions. Second operand 13 states. [2020-10-28 19:48:26,048 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-28 19:48:27,604 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-28 19:48:28,378 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-28 19:48:28,588 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-28 19:48:29,495 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-28 19:48:37,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 19:48:37,083 INFO L93 Difference]: Finished difference Result 46084 states and 113548 transitions. [2020-10-28 19:48:37,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-10-28 19:48:37,084 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 103 [2020-10-28 19:48:37,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 19:48:37,339 INFO L225 Difference]: With dead ends: 46084 [2020-10-28 19:48:37,340 INFO L226 Difference]: Without dead ends: 26862 [2020-10-28 19:48:37,582 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 524 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=399, Invalid=1581, Unknown=0, NotChecked=0, Total=1980 [2020-10-28 19:48:37,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26862 states. [2020-10-28 19:48:41,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26862 to 21679. [2020-10-28 19:48:41,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21679 states. [2020-10-28 19:48:41,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21679 states to 21679 states and 41518 transitions. [2020-10-28 19:48:41,326 INFO L78 Accepts]: Start accepts. Automaton has 21679 states and 41518 transitions. Word has length 103 [2020-10-28 19:48:41,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 19:48:41,326 INFO L481 AbstractCegarLoop]: Abstraction has 21679 states and 41518 transitions. [2020-10-28 19:48:41,326 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-28 19:48:41,326 INFO L276 IsEmpty]: Start isEmpty. Operand 21679 states and 41518 transitions. [2020-10-28 19:48:41,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-28 19:48:41,330 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 19:48:41,330 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-28 19:48:41,331 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-28 19:48:41,331 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 19:48:41,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 19:48:41,331 INFO L82 PathProgramCache]: Analyzing trace with hash -797965575, now seen corresponding path program 1 times [2020-10-28 19:48:41,331 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 19:48:41,331 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1021373888] [2020-10-28 19:48:41,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 19:48:41,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:48:41,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:48:41,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:48:41,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 149 [2020-10-28 19:48:41,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:48:41,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-28 19:48:41,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:48:41,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:48:41,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:48:41,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 114 [2020-10-28 19:48:41,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-28 19:48:41,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:48:41,532 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-28 19:48:41,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 19:48:41,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:48:41,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:48:41,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:48:41,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:48:41,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:48:41,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 19:48:41,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:48:41,546 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:48:41,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:48:41,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:48:41,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:48:41,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:48:41,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 19:48:41,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:48:41,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:48:41,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:48:41,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:48:41,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:48:41,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:48:41,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:48:41,566 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:48:41,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:48:41,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:48:41,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:48:41,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:48:41,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 19:48:41,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:48:41,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:48:41,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:48:41,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:48:41,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:48:41,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:48:41,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:48:41,569 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:48:41,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:48:41,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:48:41,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:48:41,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:48:41,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 19:48:41,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:48:41,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:48:41,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:48:41,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 19:48:41,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:48:41,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:48:41,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:48:41,585 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:48:41,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:48:41,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:48:41,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:48:41,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:48:41,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-28 19:48:41,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:48:41,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:48:41,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:48:41,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:48:41,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:48:41,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:48:41,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:48:41,589 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:48:41,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:48:41,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:48:41,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:48:41,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:48:41,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-28 19:48:41,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:48:41,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:48:41,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:48:41,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-28 19:48:41,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:48:41,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:48:41,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:48:41,594 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:48:41,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:48:41,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:48:41,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:48:41,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:48:41,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 19:48:41,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:48:41,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:48:41,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:48:41,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:48:41,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:48:41,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:48:41,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:48:41,598 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:48:41,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:48:41,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:48:41,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:48:41,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:48:41,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 19:48:41,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:48:41,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:48:41,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:48:41,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:48:41,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:48:41,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:48:41,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:48:41,601 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:48:41,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:48:41,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:48:41,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:48:41,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:48:41,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 19:48:41,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:48:41,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:48:41,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:48:41,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 19:48:41,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:48:41,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:48:41,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:48:41,604 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:48:41,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:48:41,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:48:41,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:48:41,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:48:41,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-28 19:48:41,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:48:41,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:48:41,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:48:41,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:48:41,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:48:41,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:48:41,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:48:41,608 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:48:41,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:48:41,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:48:41,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:48:41,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:48:41,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-28 19:48:41,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:48:41,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:48:41,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:48:41,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 19:48:41,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:48:41,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:48:41,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:48:41,611 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:48:41,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:48:41,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:48:41,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:48:41,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:48:41,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-28 19:48:41,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:48:41,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:48:41,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:48:41,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:48:41,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:48:41,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 19:48:41,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:48:41,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:48:41,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:48:41,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:48:41,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 19:48:41,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:48:41,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-28 19:48:41,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:48:41,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:48:41,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:48:41,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 19:48:41,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:48:41,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:48:41,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:48:41,650 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:48:41,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:48:41,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:48:41,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 19:48:41,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:48:41,664 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-28 19:48:41,665 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1021373888] [2020-10-28 19:48:41,665 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 19:48:41,665 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-28 19:48:41,665 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430036180] [2020-10-28 19:48:41,666 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 19:48:41,666 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 19:48:41,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 19:48:41,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 19:48:41,667 INFO L87 Difference]: Start difference. First operand 21679 states and 41518 transitions. Second operand 7 states. [2020-10-28 19:48:41,986 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-28 19:48:47,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 19:48:47,404 INFO L93 Difference]: Finished difference Result 54061 states and 110148 transitions. [2020-10-28 19:48:47,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-28 19:48:47,405 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 109 [2020-10-28 19:48:47,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 19:48:47,609 INFO L225 Difference]: With dead ends: 54061 [2020-10-28 19:48:47,609 INFO L226 Difference]: Without dead ends: 32404 [2020-10-28 19:48:48,194 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240 [2020-10-28 19:48:48,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32404 states. [2020-10-28 19:48:51,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32404 to 29264. [2020-10-28 19:48:51,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29264 states. [2020-10-28 19:48:51,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29264 states to 29264 states and 48432 transitions. [2020-10-28 19:48:51,968 INFO L78 Accepts]: Start accepts. Automaton has 29264 states and 48432 transitions. Word has length 109 [2020-10-28 19:48:51,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 19:48:51,968 INFO L481 AbstractCegarLoop]: Abstraction has 29264 states and 48432 transitions. [2020-10-28 19:48:51,968 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 19:48:51,969 INFO L276 IsEmpty]: Start isEmpty. Operand 29264 states and 48432 transitions. [2020-10-28 19:48:51,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-10-28 19:48:51,974 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 19:48:51,974 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-28 19:48:51,975 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-28 19:48:51,975 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 19:48:51,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 19:48:51,975 INFO L82 PathProgramCache]: Analyzing trace with hash 1890179362, now seen corresponding path program 1 times [2020-10-28 19:48:51,975 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 19:48:51,976 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1674157527] [2020-10-28 19:48:51,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 19:48:51,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:48:52,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:48:52,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:48:52,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:48:55,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:48:55,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 157 [2020-10-28 19:48:55,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 19:48:55,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3118 [2020-10-28 19:48:55,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:48:55,113 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:48:55,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-28 19:48:55,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-28 19:48:55,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-28 19:48:55,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:48:55,249 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-28 19:48:55,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 19:48:55,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:48:55,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:48:55,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:48:55,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:48:55,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:48:55,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 19:48:55,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:48:55,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:48:55,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:48:55,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:48:55,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:48:55,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:48:55,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 19:48:55,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:48:55,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:48:55,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:48:55,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:48:55,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:48:55,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:48:55,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:48:55,281 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:48:55,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:48:55,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:48:55,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:48:55,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:48:55,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 19:48:55,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:48:55,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:48:55,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:48:55,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:48:55,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:48:55,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:48:55,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:48:55,284 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:48:55,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:48:55,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:48:55,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:48:55,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:48:55,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 19:48:55,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:48:55,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:48:55,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:48:55,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 19:48:55,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:48:55,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:48:55,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:48:55,302 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:48:55,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:48:55,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:48:55,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:48:55,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:48:55,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-28 19:48:55,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:48:55,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:48:55,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:48:55,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:48:55,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:48:55,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:48:55,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:48:55,306 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:48:55,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:48:55,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:48:55,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:48:55,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:48:55,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-28 19:48:55,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:48:55,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:48:55,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:48:55,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-28 19:48:55,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:48:55,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:48:55,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:48:55,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:48:55,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:48:55,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:48:55,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:48:55,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:48:55,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 19:48:55,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:48:55,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:48:55,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:48:55,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:48:55,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:48:55,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:48:55,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:48:55,315 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:48:55,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:48:55,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:48:55,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:48:55,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:48:55,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 19:48:55,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:48:55,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:48:55,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:48:55,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:48:55,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:48:55,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:48:55,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:48:55,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:48:55,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:48:55,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:48:55,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:48:55,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:48:55,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 19:48:55,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:48:55,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:48:55,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:48:55,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 19:48:55,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:48:55,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:48:55,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:48:55,323 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:48:55,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:48:55,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:48:55,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:48:55,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:48:55,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-28 19:48:55,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:48:55,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:48:55,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:48:55,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:48:55,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:48:55,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:48:55,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:48:55,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:48:55,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:48:55,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:48:55,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:48:55,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:48:55,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-28 19:48:55,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:48:55,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:48:55,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:48:55,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 19:48:55,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:48:55,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:48:55,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:48:55,330 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:48:55,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:48:55,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:48:55,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:48:55,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:48:55,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-28 19:48:55,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:48:55,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:48:55,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:48:55,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 19:48:55,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:48:55,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 19:48:55,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:48:55,368 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:48:55,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 19:48:55,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:48:55,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 19:48:55,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:48:55,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 19:48:55,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:48:55,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:48:55,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:48:55,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 19:48:55,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:48:55,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 19:48:55,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:48:55,404 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:48:55,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 19:48:55,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:48:55,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 19:48:55,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:48:55,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-28 19:48:55,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:48:55,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:48:55,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:48:55,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:48:55,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-28 19:48:55,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 19:48:55,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-28 19:48:55,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:48:55,507 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:48:55,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 19:48:55,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 19:48:55,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-28 19:48:55,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:48:55,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 19:48:55,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:48:55,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:48:55,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:48:55,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 19:48:55,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:48:55,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:48:55,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:48:55,553 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:48:55,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:48:55,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:48:55,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 19:48:55,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:48:55,567 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 19:48:55,567 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1674157527] [2020-10-28 19:48:55,567 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 19:48:55,567 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-28 19:48:55,567 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150823728] [2020-10-28 19:48:55,568 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-28 19:48:55,568 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 19:48:55,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-28 19:48:55,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2020-10-28 19:48:55,568 INFO L87 Difference]: Start difference. First operand 29264 states and 48432 transitions. Second operand 15 states. [2020-10-28 19:48:56,736 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-28 19:48:56,930 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-28 19:48:57,516 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-28 19:48:57,951 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-28 19:48:58,701 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-28 19:49:00,377 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-28 19:49:00,896 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-28 19:49:11,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 19:49:11,642 INFO L93 Difference]: Finished difference Result 73710 states and 132339 transitions. [2020-10-28 19:49:11,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2020-10-28 19:49:11,642 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 113 [2020-10-28 19:49:11,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 19:49:11,939 INFO L225 Difference]: With dead ends: 73710 [2020-10-28 19:49:11,939 INFO L226 Difference]: Without dead ends: 46653 [2020-10-28 19:49:12,141 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1252 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=682, Invalid=3224, Unknown=0, NotChecked=0, Total=3906 [2020-10-28 19:49:12,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46653 states. [2020-10-28 19:49:16,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46653 to 39923. [2020-10-28 19:49:16,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39923 states. [2020-10-28 19:49:16,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39923 states to 39923 states and 63890 transitions. [2020-10-28 19:49:16,816 INFO L78 Accepts]: Start accepts. Automaton has 39923 states and 63890 transitions. Word has length 113 [2020-10-28 19:49:16,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 19:49:16,816 INFO L481 AbstractCegarLoop]: Abstraction has 39923 states and 63890 transitions. [2020-10-28 19:49:16,816 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-28 19:49:16,817 INFO L276 IsEmpty]: Start isEmpty. Operand 39923 states and 63890 transitions. [2020-10-28 19:49:16,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-10-28 19:49:16,823 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 19:49:16,823 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-28 19:49:16,823 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-28 19:49:16,823 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 19:49:16,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 19:49:16,824 INFO L82 PathProgramCache]: Analyzing trace with hash -774422576, now seen corresponding path program 1 times [2020-10-28 19:49:16,824 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 19:49:16,824 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [771148951] [2020-10-28 19:49:16,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 19:49:16,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:49:16,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:49:16,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:49:16,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:49:19,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:49:19,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-28 19:49:19,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 19:49:19,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2358 [2020-10-28 19:49:19,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:49:19,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:49:19,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-28 19:49:19,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-28 19:49:19,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-28 19:49:19,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:49:19,474 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-28 19:49:19,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 19:49:19,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:49:19,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:49:19,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:49:19,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:49:19,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:49:19,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 19:49:19,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:49:19,485 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:49:19,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:49:19,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:49:19,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:49:19,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:49:19,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 19:49:19,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:49:19,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:49:19,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:49:19,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:49:19,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:49:19,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:49:19,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:49:19,511 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:49:19,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:49:19,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:49:19,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:49:19,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:49:19,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 19:49:19,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:49:19,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:49:19,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:49:19,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:49:19,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:49:19,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:49:19,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:49:19,514 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:49:19,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:49:19,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:49:19,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:49:19,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:49:19,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 19:49:19,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:49:19,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:49:19,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:49:19,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 19:49:19,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:49:19,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:49:19,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:49:19,537 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:49:19,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:49:19,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:49:19,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:49:19,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:49:19,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-28 19:49:19,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:49:19,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:49:19,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:49:19,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:49:19,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:49:19,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:49:19,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:49:19,541 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:49:19,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:49:19,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:49:19,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:49:19,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:49:19,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-28 19:49:19,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:49:19,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:49:19,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:49:19,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-28 19:49:19,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:49:19,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:49:19,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:49:19,547 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:49:19,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:49:19,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:49:19,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:49:19,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:49:19,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 19:49:19,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:49:19,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:49:19,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:49:19,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:49:19,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:49:19,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:49:19,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:49:19,552 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:49:19,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:49:19,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:49:19,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:49:19,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:49:19,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 19:49:19,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:49:19,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:49:19,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:49:19,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:49:19,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:49:19,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:49:19,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:49:19,556 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:49:19,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:49:19,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:49:19,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:49:19,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:49:19,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 19:49:19,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:49:19,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:49:19,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:49:19,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 19:49:19,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:49:19,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:49:19,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:49:19,560 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:49:19,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:49:19,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:49:19,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:49:19,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:49:19,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-28 19:49:19,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:49:19,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:49:19,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:49:19,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:49:19,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:49:19,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:49:19,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:49:19,563 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:49:19,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:49:19,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:49:19,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:49:19,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:49:19,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-28 19:49:19,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:49:19,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:49:19,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:49:19,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 19:49:19,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:49:19,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:49:19,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:49:19,567 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:49:19,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:49:19,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:49:19,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:49:19,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:49:19,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-28 19:49:19,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:49:19,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:49:19,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:49:19,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 19:49:19,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:49:19,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 19:49:19,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:49:19,612 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:49:19,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 19:49:19,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:49:19,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 19:49:19,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:49:19,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 19:49:19,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:49:19,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:49:19,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:49:19,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 19:49:19,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:49:19,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 19:49:19,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:49:19,652 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:49:19,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 19:49:19,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:49:19,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 19:49:19,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:49:19,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-28 19:49:19,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:49:19,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:49:19,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:49:19,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:49:19,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-28 19:49:19,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 19:49:19,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-28 19:49:19,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:49:19,773 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:49:19,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 19:49:19,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 19:49:19,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-28 19:49:19,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:49:19,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 19:49:19,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:49:19,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:49:19,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:49:19,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 19:49:19,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:49:19,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 19:49:19,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:49:19,829 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:49:19,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:49:19,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:49:19,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 19:49:19,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:49:19,848 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 19:49:19,848 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [771148951] [2020-10-28 19:49:19,848 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 19:49:19,848 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-28 19:49:19,849 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535296853] [2020-10-28 19:49:19,849 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-28 19:49:19,849 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 19:49:19,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-28 19:49:19,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2020-10-28 19:49:19,850 INFO L87 Difference]: Start difference. First operand 39923 states and 63890 transitions. Second operand 17 states. [2020-10-28 19:49:20,006 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-28 19:49:21,198 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-28 19:49:21,932 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-28 19:49:22,444 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-28 19:49:23,288 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-28 19:49:24,643 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-28 19:49:24,865 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-28 19:49:25,565 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-28 19:49:26,899 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-28 19:49:27,563 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-28 19:49:33,792 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-28 19:49:40,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 19:49:40,934 INFO L93 Difference]: Finished difference Result 96340 states and 168986 transitions. [2020-10-28 19:49:40,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2020-10-28 19:49:40,935 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 117 [2020-10-28 19:49:40,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 19:49:41,375 INFO L225 Difference]: With dead ends: 96340 [2020-10-28 19:49:41,375 INFO L226 Difference]: Without dead ends: 72022 [2020-10-28 19:49:41,529 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1628 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=757, Invalid=4355, Unknown=0, NotChecked=0, Total=5112 [2020-10-28 19:49:41,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72022 states. [2020-10-28 19:49:48,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72022 to 62382. [2020-10-28 19:49:48,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62382 states. [2020-10-28 19:49:49,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62382 states to 62382 states and 102676 transitions. [2020-10-28 19:49:49,484 INFO L78 Accepts]: Start accepts. Automaton has 62382 states and 102676 transitions. Word has length 117 [2020-10-28 19:49:49,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 19:49:49,484 INFO L481 AbstractCegarLoop]: Abstraction has 62382 states and 102676 transitions. [2020-10-28 19:49:49,485 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-28 19:49:49,485 INFO L276 IsEmpty]: Start isEmpty. Operand 62382 states and 102676 transitions. [2020-10-28 19:49:49,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-10-28 19:49:49,493 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 19:49:49,493 INFO L422 BasicCegarLoop]: trace histogram [3, 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] [2020-10-28 19:49:49,496 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-28 19:49:49,496 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 19:49:49,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 19:49:49,496 INFO L82 PathProgramCache]: Analyzing trace with hash -475260113, now seen corresponding path program 1 times [2020-10-28 19:49:49,496 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 19:49:49,498 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1433878278] [2020-10-28 19:49:49,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 19:49:49,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:49:49,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:49:49,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:49:49,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:49:49,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:49:50,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:49:50,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 171 [2020-10-28 19:49:50,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 19:49:50,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 769 [2020-10-28 19:49:50,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:49:50,286 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:49:50,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:49:50,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 116 [2020-10-28 19:49:50,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-28 19:49:50,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:49:50,426 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-28 19:49:50,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 19:49:50,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:49:50,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:49:50,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:49:50,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:49:50,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:49:50,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 19:49:50,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:49:50,438 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:49:50,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:49:50,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:49:50,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:49:50,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:49:50,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 19:49:50,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:49:50,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:49:50,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:49:50,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:49:50,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:49:50,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:49:50,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:49:50,458 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:49:50,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:49:50,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:49:50,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:49:50,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:49:50,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 19:49:50,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:49:50,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:49:50,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:49:50,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:49:50,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:49:50,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:49:50,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:49:50,461 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:49:50,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:49:50,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:49:50,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:49:50,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:49:50,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 19:49:50,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:49:50,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:49:50,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:49:50,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 19:49:50,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:49:50,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:49:50,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:49:50,479 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:49:50,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:49:50,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:49:50,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:49:50,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:49:50,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-28 19:49:50,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:49:50,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:49:50,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:49:50,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:49:50,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:49:50,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:49:50,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:49:50,482 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:49:50,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:49:50,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:49:50,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:49:50,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:49:50,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-28 19:49:50,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:49:50,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:49:50,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:49:50,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-28 19:49:50,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:49:50,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:49:50,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:49:50,488 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:49:50,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:49:50,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:49:50,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:49:50,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:49:50,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 19:49:50,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:49:50,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:49:50,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:49:50,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:49:50,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:49:50,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:49:50,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:49:50,492 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:49:50,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:49:50,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:49:50,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:49:50,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:49:50,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 19:49:50,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:49:50,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:49:50,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:49:50,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:49:50,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:49:50,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:49:50,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:49:50,496 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:49:50,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:49:50,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:49:50,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:49:50,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:49:50,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 19:49:50,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:49:50,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:49:50,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:49:50,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 19:49:50,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:49:50,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:49:50,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:49:50,499 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:49:50,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:49:50,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:49:50,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:49:50,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:49:50,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-28 19:49:50,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:49:50,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:49:50,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:49:50,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:49:50,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:49:50,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:49:50,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:49:50,503 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:49:50,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:49:50,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:49:50,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:49:50,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:49:50,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-28 19:49:50,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:49:50,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:49:50,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:49:50,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 19:49:50,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:49:50,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:49:50,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:49:50,506 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:49:50,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:49:50,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:49:50,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:49:50,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:49:50,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-28 19:49:50,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:49:50,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:49:50,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:49:50,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 19:49:50,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:49:50,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 19:49:50,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:49:50,545 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:49:50,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:49:50,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:49:50,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 19:49:50,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:49:50,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 19:49:50,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:49:50,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:49:50,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:49:50,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 19:49:50,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:49:50,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:49:50,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:49:50,565 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:49:50,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:49:50,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:49:50,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:49:50,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:49:50,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-28 19:49:50,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:49:50,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:49:50,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:49:50,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:49:50,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 19:49:50,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 19:49:50,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:49:50,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:49:50,571 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:49:50,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:49:50,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:49:50,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 19:49:50,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:49:50,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-28 19:49:50,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:49:50,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:49:50,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:49:50,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 19:49:50,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:49:50,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 19:49:50,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:49:50,579 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:49:50,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:49:50,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-28 19:49:50,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:49:50,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:49:50,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 19:49:50,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:49:50,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:49:50,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:49:50,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 19:49:50,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:49:50,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:49:50,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:49:50,585 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:49:50,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:49:50,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:49:50,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:49:50,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:49:50,607 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-10-28 19:49:50,607 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1433878278] [2020-10-28 19:49:50,608 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 19:49:50,608 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-28 19:49:50,608 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913286671] [2020-10-28 19:49:50,608 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 19:49:50,609 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 19:49:50,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 19:49:50,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-28 19:49:50,609 INFO L87 Difference]: Start difference. First operand 62382 states and 102676 transitions. Second operand 8 states. [2020-10-28 19:49:51,659 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-28 19:50:00,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 19:50:00,936 INFO L93 Difference]: Finished difference Result 127420 states and 223486 transitions. [2020-10-28 19:50:00,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-28 19:50:00,937 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 123 [2020-10-28 19:50:00,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 19:50:01,594 INFO L225 Difference]: With dead ends: 127420 [2020-10-28 19:50:01,595 INFO L226 Difference]: Without dead ends: 65065 [2020-10-28 19:50:02,032 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=150, Invalid=312, Unknown=0, NotChecked=0, Total=462 [2020-10-28 19:50:02,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65065 states. [2020-10-28 19:50:08,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65065 to 59896. [2020-10-28 19:50:08,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59896 states. [2020-10-28 19:50:09,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59896 states to 59896 states and 92344 transitions. [2020-10-28 19:50:09,504 INFO L78 Accepts]: Start accepts. Automaton has 59896 states and 92344 transitions. Word has length 123 [2020-10-28 19:50:09,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 19:50:09,505 INFO L481 AbstractCegarLoop]: Abstraction has 59896 states and 92344 transitions. [2020-10-28 19:50:09,505 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 19:50:09,505 INFO L276 IsEmpty]: Start isEmpty. Operand 59896 states and 92344 transitions. [2020-10-28 19:50:09,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-10-28 19:50:09,539 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 19:50:09,539 INFO L422 BasicCegarLoop]: trace histogram [3, 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] [2020-10-28 19:50:09,539 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-28 19:50:09,539 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 19:50:09,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 19:50:09,540 INFO L82 PathProgramCache]: Analyzing trace with hash 465986269, now seen corresponding path program 1 times [2020-10-28 19:50:09,540 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 19:50:09,543 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1817222716] [2020-10-28 19:50:09,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 19:50:09,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:50:09,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:50:09,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:50:09,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:50:09,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking...