/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product53.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 19:07:05,016 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 19:07:05,020 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 19:07:05,065 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 19:07:05,066 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 19:07:05,074 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 19:07:05,077 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 19:07:05,080 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 19:07:05,083 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 19:07:05,087 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 19:07:05,088 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 19:07:05,089 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 19:07:05,089 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 19:07:05,092 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 19:07:05,095 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 19:07:05,097 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 19:07:05,099 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 19:07:05,100 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 19:07:05,102 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 19:07:05,112 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 19:07:05,114 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 19:07:05,116 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 19:07:05,117 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 19:07:05,118 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 19:07:05,133 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 19:07:05,133 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 19:07:05,133 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 19:07:05,134 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 19:07:05,138 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 19:07:05,139 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 19:07:05,139 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 19:07:05,142 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 19:07:05,143 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 19:07:05,146 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 19:07:05,147 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 19:07:05,148 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 19:07:05,148 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 19:07:05,149 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 19:07:05,149 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 19:07:05,150 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 19:07:05,151 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 19:07:05,152 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 19:07:05,195 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 19:07:05,195 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 19:07:05,197 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 19:07:05,198 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 19:07:05,198 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 19:07:05,198 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 19:07:05,198 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 19:07:05,199 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 19:07:05,199 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 19:07:05,199 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 19:07:05,200 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 19:07:05,201 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 19:07:05,201 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 19:07:05,201 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 19:07:05,202 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 19:07:05,203 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 19:07:05,203 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 19:07:05,203 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 19:07:05,203 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 19:07:05,204 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 19:07:05,204 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 19:07:05,204 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 19:07:05,204 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 19:07:05,204 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 19:07:05,205 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 19:07:05,205 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 19:07:05,205 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 19:07:05,205 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 19:07:05,205 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 19:07:05,206 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-24 19:07:05,648 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 19:07:05,672 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 19:07:05,680 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 19:07:05,682 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 19:07:05,682 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 19:07:05,683 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product53.cil.c [2020-09-24 19:07:05,753 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9015ae645/967d839d078e40f487a6ff570e29e96c/FLAG0eac92f7e [2020-09-24 19:07:06,346 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 19:07:06,347 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product53.cil.c [2020-09-24 19:07:06,363 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9015ae645/967d839d078e40f487a6ff570e29e96c/FLAG0eac92f7e [2020-09-24 19:07:06,637 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9015ae645/967d839d078e40f487a6ff570e29e96c [2020-09-24 19:07:06,652 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 19:07:06,659 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 19:07:06,660 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 19:07:06,660 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 19:07:06,664 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 19:07:06,666 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:07:06" (1/1) ... [2020-09-24 19:07:06,670 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a612428 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:07:06, skipping insertion in model container [2020-09-24 19:07:06,670 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:07:06" (1/1) ... [2020-09-24 19:07:06,677 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 19:07:06,747 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 19:07:07,249 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:07:07,275 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 19:07:07,422 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:07:07,469 INFO L208 MainTranslator]: Completed translation [2020-09-24 19:07:07,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:07:07 WrapperNode [2020-09-24 19:07:07,469 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 19:07:07,471 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 19:07:07,471 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 19:07:07,471 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 19:07:07,486 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:07:07" (1/1) ... [2020-09-24 19:07:07,486 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:07:07" (1/1) ... [2020-09-24 19:07:07,510 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:07:07" (1/1) ... [2020-09-24 19:07:07,510 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:07:07" (1/1) ... [2020-09-24 19:07:07,547 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:07:07" (1/1) ... [2020-09-24 19:07:07,561 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:07:07" (1/1) ... [2020-09-24 19:07:07,567 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:07:07" (1/1) ... [2020-09-24 19:07:07,575 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 19:07:07,576 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 19:07:07,576 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 19:07:07,576 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 19:07:07,578 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:07:07" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 19:07:07,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 19:07:07,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 19:07:07,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 19:07:07,655 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 19:07:07,655 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 19:07:07,655 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 19:07:07,655 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 19:07:07,655 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 19:07:07,656 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 19:07:07,656 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 19:07:07,656 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 19:07:07,656 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 19:07:07,656 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 19:07:07,657 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 19:07:07,657 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-24 19:07:07,657 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 19:07:07,657 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 19:07:07,657 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 19:07:07,658 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 19:07:07,659 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 19:07:07,659 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 19:07:07,660 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 19:07:07,660 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 19:07:07,660 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-24 19:07:07,660 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-24 19:07:07,660 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 19:07:07,660 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 19:07:07,661 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 19:07:07,662 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 19:07:07,662 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 19:07:07,662 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 19:07:07,662 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 19:07:07,662 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 19:07:07,662 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 19:07:07,663 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 19:07:07,663 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 19:07:07,663 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 19:07:07,663 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 19:07:07,663 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 19:07:07,663 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 19:07:07,665 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 19:07:07,665 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 19:07:07,665 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 19:07:07,666 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 19:07:07,666 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 19:07:07,666 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 19:07:07,666 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 19:07:07,666 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 19:07:07,666 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 19:07:07,666 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 19:07:07,667 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 19:07:07,667 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 19:07:07,667 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 19:07:07,667 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 19:07:07,667 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 19:07:07,668 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 19:07:07,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 19:07:07,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 19:07:07,668 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 19:07:07,668 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 19:07:07,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 19:07:07,669 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 19:07:07,669 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 19:07:07,669 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 19:07:07,669 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 19:07:07,669 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 19:07:07,669 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 19:07:07,670 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 19:07:07,670 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 19:07:07,670 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 19:07:07,670 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 19:07:07,670 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 19:07:07,670 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 19:07:07,671 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 19:07:07,671 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 19:07:07,671 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 19:07:07,671 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 19:07:07,671 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-24 19:07:07,671 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 19:07:07,672 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 19:07:07,672 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 19:07:07,672 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 19:07:07,672 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 19:07:07,672 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-24 19:07:07,672 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 19:07:07,673 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-24 19:07:07,673 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 19:07:07,673 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 19:07:07,673 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 19:07:07,673 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 19:07:07,673 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 19:07:07,673 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 19:07:07,674 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 19:07:07,674 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 19:07:07,674 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 19:07:07,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 19:07:07,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 19:07:07,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 19:07:08,909 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 19:07:08,910 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 19:07:08,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:07:08 BoogieIcfgContainer [2020-09-24 19:07:08,927 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 19:07:08,931 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 19:07:08,931 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 19:07:08,935 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 19:07:08,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 07:07:06" (1/3) ... [2020-09-24 19:07:08,937 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32487d00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:07:08, skipping insertion in model container [2020-09-24 19:07:08,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:07:07" (2/3) ... [2020-09-24 19:07:08,939 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32487d00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:07:08, skipping insertion in model container [2020-09-24 19:07:08,939 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:07:08" (3/3) ... [2020-09-24 19:07:08,944 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product53.cil.c [2020-09-24 19:07:08,957 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 19:07:08,972 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 19:07:08,996 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 19:07:09,041 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 19:07:09,042 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 19:07:09,042 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 19:07:09,042 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 19:07:09,043 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 19:07:09,044 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 19:07:09,044 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 19:07:09,044 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 19:07:09,094 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states. [2020-09-24 19:07:09,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-24 19:07:09,133 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:07:09,135 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:07:09,135 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:07:09,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:07:09,145 INFO L82 PathProgramCache]: Analyzing trace with hash 1512755977, now seen corresponding path program 1 times [2020-09-24 19:07:09,158 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:07:09,159 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1829935713] [2020-09-24 19:07:09,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:07:09,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:09,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:09,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:10,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:10,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:10,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-24 19:07:10,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:07:10,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1004 [2020-09-24 19:07:10,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:10,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:10,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-24 19:07:10,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:10,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 19:07:10,920 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:07:10,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:07:10,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:10,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:11,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:11,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:07:11,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:11,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-09-24 19:07:11,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:11,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:11,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:11,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:11,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:11,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:07:11,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:11,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:11,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:11,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:11,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:11,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:11,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:11,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:11,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:11,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:11,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:11,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:07:11,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:11,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:11,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:11,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:11,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:11,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:11,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:11,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:11,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:11,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:11,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:11,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:07:11,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:11,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:11,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:11,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:11,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:11,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:07:11,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:11,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:11,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:11,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:11,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:11,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:07:11,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:11,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:11,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:11,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:11,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:11,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:11,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:11,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:11,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:11,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:11,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:11,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:07:11,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:11,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:11,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:11,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:07:11,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:11,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:11,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:11,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:11,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:11,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:11,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:11,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 19:07:11,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:11,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:11,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:11,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:11,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:11,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:11,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:11,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:11,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:07:11,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:11,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:11,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 19:07:11,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:11,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:11,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:11,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:11,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:11,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:07:11,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:11,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:11,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:07:11,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:11,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:11,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:07:11,267 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1829935713] [2020-09-24 19:07:11,269 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:07:11,269 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 19:07:11,270 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547184970] [2020-09-24 19:07:11,277 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 19:07:11,277 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:07:11,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 19:07:11,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-24 19:07:11,298 INFO L87 Difference]: Start difference. First operand 341 states. Second operand 4 states. [2020-09-24 19:07:12,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:07:12,895 INFO L93 Difference]: Finished difference Result 544 states and 644 transitions. [2020-09-24 19:07:12,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-24 19:07:12,898 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2020-09-24 19:07:12,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:07:12,925 INFO L225 Difference]: With dead ends: 544 [2020-09-24 19:07:12,925 INFO L226 Difference]: Without dead ends: 339 [2020-09-24 19:07:12,932 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-24 19:07:12,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2020-09-24 19:07:13,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 290. [2020-09-24 19:07:13,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2020-09-24 19:07:13,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 318 transitions. [2020-09-24 19:07:13,043 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 318 transitions. Word has length 148 [2020-09-24 19:07:13,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:07:13,044 INFO L479 AbstractCegarLoop]: Abstraction has 290 states and 318 transitions. [2020-09-24 19:07:13,045 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 19:07:13,045 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 318 transitions. [2020-09-24 19:07:13,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-09-24 19:07:13,050 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:07:13,050 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:07:13,051 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 19:07:13,051 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:07:13,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:07:13,052 INFO L82 PathProgramCache]: Analyzing trace with hash 1077192285, now seen corresponding path program 1 times [2020-09-24 19:07:13,052 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:07:13,052 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1305438087] [2020-09-24 19:07:13,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:07:13,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:13,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:13,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:13,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:14,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:14,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-09-24 19:07:14,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:07:14,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1057 [2020-09-24 19:07:14,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:14,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:14,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 19:07:14,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-24 19:07:14,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:14,535 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:07:14,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:07:14,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:14,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:14,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:14,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:07:14,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:14,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 280 [2020-09-24 19:07:14,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:14,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:14,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:14,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 19:07:14,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:14,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:07:14,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:14,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:14,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:14,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:14,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:14,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 19:07:14,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:14,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:14,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:14,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:07:14,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:14,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:07:14,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:14,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:14,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:14,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:14,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:14,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:14,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:14,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:14,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:14,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:07:14,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:14,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:07:14,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:14,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:14,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:14,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:14,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:14,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 19:07:14,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:14,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:14,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:14,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:07:14,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:14,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:07:14,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:14,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:14,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:14,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:14,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:14,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:14,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:14,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:14,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:14,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:07:14,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:14,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:07:14,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:14,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:14,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:14,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:07:14,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:14,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:07:14,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:14,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:14,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:14,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 19:07:14,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:14,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-24 19:07:14,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:14,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:14,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:14,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:14,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:14,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:14,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:14,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:14,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:07:14,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:14,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:14,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 19:07:14,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:14,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:14,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:15,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:15,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:15,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:15,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:15,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:15,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:07:15,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:15,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 19:07:15,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:07:15,077 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1305438087] [2020-09-24 19:07:15,077 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:07:15,078 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 19:07:15,078 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937250792] [2020-09-24 19:07:15,082 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 19:07:15,082 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:07:15,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 19:07:15,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 19:07:15,083 INFO L87 Difference]: Start difference. First operand 290 states and 318 transitions. Second operand 5 states. [2020-09-24 19:07:15,661 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:07:16,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:07:16,809 INFO L93 Difference]: Finished difference Result 514 states and 595 transitions. [2020-09-24 19:07:16,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 19:07:16,811 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 149 [2020-09-24 19:07:16,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:07:16,818 INFO L225 Difference]: With dead ends: 514 [2020-09-24 19:07:16,818 INFO L226 Difference]: Without dead ends: 339 [2020-09-24 19:07:16,820 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 19:07:16,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2020-09-24 19:07:16,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 290. [2020-09-24 19:07:16,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2020-09-24 19:07:16,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 317 transitions. [2020-09-24 19:07:16,873 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 317 transitions. Word has length 149 [2020-09-24 19:07:16,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:07:16,874 INFO L479 AbstractCegarLoop]: Abstraction has 290 states and 317 transitions. [2020-09-24 19:07:16,874 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 19:07:16,874 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 317 transitions. [2020-09-24 19:07:16,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-09-24 19:07:16,877 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:07:16,877 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:07:16,878 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 19:07:16,878 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:07:16,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:07:16,878 INFO L82 PathProgramCache]: Analyzing trace with hash 1109728421, now seen corresponding path program 1 times [2020-09-24 19:07:16,878 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:07:16,879 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1610767617] [2020-09-24 19:07:16,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:07:16,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:16,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:17,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:17,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:17,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:17,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 215 [2020-09-24 19:07:17,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:07:17,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1002 [2020-09-24 19:07:17,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:17,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:07:17,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 164 [2020-09-24 19:07:17,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 19:07:17,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:18,204 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:07:18,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:07:18,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:18,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:18,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:18,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:07:18,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:18,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-09-24 19:07:18,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:18,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:18,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:18,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:18,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:18,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:07:18,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:18,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:18,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:18,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:18,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:18,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:18,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:18,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:18,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:18,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:18,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:18,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:07:18,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:18,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:18,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:18,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:18,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:18,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:18,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:18,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:18,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:18,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:18,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:18,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:07:18,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:18,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:18,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:18,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:18,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:18,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:07:18,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:18,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:18,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:18,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:18,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:18,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:07:18,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:18,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:18,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:18,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:18,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:18,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:18,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:18,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:18,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:18,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:18,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:18,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:07:18,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:18,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:18,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:18,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:07:18,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:18,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:18,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:18,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:18,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:18,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:18,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:18,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 19:07:18,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:18,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:18,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:18,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:18,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 19:07:18,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:07:18,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-24 19:07:18,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:18,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:07:18,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-24 19:07:18,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 19:07:18,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:18,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:07:18,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:18,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:18,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:18,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 19:07:18,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:18,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 19:07:18,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:18,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:07:18,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-24 19:07:18,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 19:07:18,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:18,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:07:18,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:18,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:18,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:18,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 19:07:18,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:18,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:07:18,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:18,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:07:18,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 19:07:18,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 19:07:18,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:18,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:07:18,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:18,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:18,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:18,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:18,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:18,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:07:18,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:18,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:18,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:18,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:07:18,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:18,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-24 19:07:18,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:18,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:18,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:18,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:18,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:18,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:18,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:18,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:18,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:07:18,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:18,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:18,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-09-24 19:07:18,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:18,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:18,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:18,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:18,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:18,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:18,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:18,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:18,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:07:18,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:18,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:18,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:07:18,618 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1610767617] [2020-09-24 19:07:18,618 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:07:18,619 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 19:07:18,619 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439181954] [2020-09-24 19:07:18,619 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 19:07:18,620 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:07:18,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 19:07:18,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-09-24 19:07:18,620 INFO L87 Difference]: Start difference. First operand 290 states and 317 transitions. Second operand 8 states. [2020-09-24 19:07:19,370 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:07:20,976 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 19:07:22,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:07:22,535 INFO L93 Difference]: Finished difference Result 693 states and 832 transitions. [2020-09-24 19:07:22,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-24 19:07:22,536 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 176 [2020-09-24 19:07:22,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:07:22,544 INFO L225 Difference]: With dead ends: 693 [2020-09-24 19:07:22,544 INFO L226 Difference]: Without dead ends: 518 [2020-09-24 19:07:22,546 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2020-09-24 19:07:22,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2020-09-24 19:07:22,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 429. [2020-09-24 19:07:22,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 429 states. [2020-09-24 19:07:22,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 478 transitions. [2020-09-24 19:07:22,621 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 478 transitions. Word has length 176 [2020-09-24 19:07:22,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:07:22,622 INFO L479 AbstractCegarLoop]: Abstraction has 429 states and 478 transitions. [2020-09-24 19:07:22,622 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 19:07:22,622 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 478 transitions. [2020-09-24 19:07:22,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2020-09-24 19:07:22,625 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:07:22,626 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:07:22,626 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 19:07:22,626 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:07:22,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:07:22,626 INFO L82 PathProgramCache]: Analyzing trace with hash -1056538629, now seen corresponding path program 1 times [2020-09-24 19:07:22,627 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:07:22,627 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1883528673] [2020-09-24 19:07:22,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:07:22,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:22,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:23,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:23,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:23,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 236 [2020-09-24 19:07:23,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:07:23,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1069 [2020-09-24 19:07:23,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:23,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:23,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-24 19:07:23,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 19:07:23,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:24,074 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:07:24,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:07:24,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:24,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:24,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:24,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:07:24,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:24,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-24 19:07:24,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:24,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:24,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:24,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:24,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:24,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:07:24,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:24,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:24,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:24,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:24,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:24,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:24,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:24,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:24,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:24,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:24,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:24,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:07:24,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:24,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:24,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:24,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:24,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:24,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:24,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:24,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:24,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:24,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:24,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:24,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:07:24,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:24,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:24,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:24,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:24,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:24,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:07:24,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:24,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:24,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:24,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:24,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:24,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:07:24,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:24,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:24,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:24,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:24,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:24,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:24,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:24,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:24,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:24,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:24,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:24,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:07:24,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:24,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:24,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:24,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:07:24,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:24,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:24,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:24,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:24,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:24,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:24,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:24,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-24 19:07:24,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:24,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:24,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:24,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-09-24 19:07:24,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:24,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 19:07:24,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:24,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:24,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 54 [2020-09-24 19:07:24,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:24,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:24,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:07:24,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:24,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:24,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:24,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-24 19:07:24,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:24,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 19:07:24,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:24,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:24,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:24,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:24,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:24,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:07:24,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:24,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:24,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:24,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 19:07:24,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:24,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 19:07:24,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:24,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:24,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:24,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:24,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:24,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:07:24,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:24,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:24,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:24,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:07:24,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:24,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:07:24,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:24,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:24,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:24,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:24,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:24,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:07:24,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:24,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:24,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:24,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:07:24,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:24,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:07:24,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:24,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:24,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:24,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:24,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:24,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:07:24,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:24,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:24,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:24,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:24,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:24,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:24,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:24,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:24,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:24,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:24,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:24,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-09-24 19:07:24,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:24,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:24,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:24,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:24,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:24,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:24,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:24,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:24,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:07:24,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:24,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:24,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-09-24 19:07:24,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:24,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:24,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:24,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:24,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:24,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:24,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:24,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:24,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:07:24,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:24,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:24,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:07:24,431 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1883528673] [2020-09-24 19:07:24,431 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:07:24,431 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 19:07:24,431 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081416166] [2020-09-24 19:07:24,432 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 19:07:24,432 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:07:24,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 19:07:24,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 19:07:24,433 INFO L87 Difference]: Start difference. First operand 429 states and 478 transitions. Second operand 6 states. [2020-09-24 19:07:25,216 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:07:26,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:07:26,490 INFO L93 Difference]: Finished difference Result 721 states and 814 transitions. [2020-09-24 19:07:26,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 19:07:26,491 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 191 [2020-09-24 19:07:26,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:07:26,495 INFO L225 Difference]: With dead ends: 721 [2020-09-24 19:07:26,495 INFO L226 Difference]: Without dead ends: 467 [2020-09-24 19:07:26,497 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2020-09-24 19:07:26,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2020-09-24 19:07:26,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 402. [2020-09-24 19:07:26,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 402 states. [2020-09-24 19:07:26,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 435 transitions. [2020-09-24 19:07:26,557 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 435 transitions. Word has length 191 [2020-09-24 19:07:26,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:07:26,557 INFO L479 AbstractCegarLoop]: Abstraction has 402 states and 435 transitions. [2020-09-24 19:07:26,557 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 19:07:26,558 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 435 transitions. [2020-09-24 19:07:26,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-09-24 19:07:26,561 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:07:26,561 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:07:26,561 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 19:07:26,562 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:07:26,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:07:26,562 INFO L82 PathProgramCache]: Analyzing trace with hash -433831518, now seen corresponding path program 1 times [2020-09-24 19:07:26,562 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:07:26,563 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [839512423] [2020-09-24 19:07:26,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:07:26,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:26,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:27,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:27,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 243 [2020-09-24 19:07:27,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:27,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1032 [2020-09-24 19:07:27,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:27,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 19:07:27,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-09-24 19:07:27,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-09-24 19:07:27,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:28,056 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:07:28,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:07:28,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:28,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:28,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:28,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:07:28,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:28,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 258 [2020-09-24 19:07:28,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:28,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:28,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:28,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-24 19:07:28,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:28,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:07:28,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:28,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:28,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:28,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:28,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:28,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:07:28,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:28,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:28,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:28,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:07:28,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:28,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:07:28,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:28,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:28,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:28,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:28,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:28,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:28,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:28,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:28,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:28,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:07:28,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:28,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:07:28,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:28,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:28,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:28,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:28,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:28,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 19:07:28,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:28,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:28,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:28,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:07:28,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:28,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:07:28,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:28,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:28,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:28,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:28,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:28,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:07:28,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:28,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:28,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:28,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:07:28,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:28,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:07:28,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:28,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:28,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:28,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:07:28,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:28,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:07:28,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:28,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:28,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:28,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 19:07:28,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:28,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 19:07:28,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:28,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:28,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:28,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-09-24 19:07:28,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:28,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-24 19:07:28,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:28,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:28,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:28,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-24 19:07:28,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:28,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:07:28,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:28,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:28,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:28,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-24 19:07:28,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:28,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 19:07:28,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:28,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:28,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:28,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:28,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:28,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:07:28,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:28,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:28,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:28,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 19:07:28,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:28,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 19:07:28,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:28,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:28,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:28,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:28,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:28,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:07:28,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:28,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:28,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:28,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:07:28,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:28,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:07:28,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:28,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:28,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:28,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:28,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:28,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:07:28,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:28,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:28,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:28,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:07:28,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:28,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:07:28,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:28,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:28,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:28,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:28,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:28,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:07:28,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:28,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:28,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:28,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:28,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:28,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:28,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:28,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:28,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:28,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:28,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:28,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-24 19:07:28,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:28,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:28,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:28,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:28,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:28,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:07:28,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:28,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:07:28,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:28,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:07:28,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:28,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-09-24 19:07:28,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:28,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:28,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:28,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:28,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:28,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:28,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:28,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:28,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:07:28,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:28,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:28,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:07:28,669 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [839512423] [2020-09-24 19:07:28,669 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:07:28,669 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 19:07:28,670 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694791184] [2020-09-24 19:07:28,670 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 19:07:28,670 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:07:28,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 19:07:28,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 19:07:28,671 INFO L87 Difference]: Start difference. First operand 402 states and 435 transitions. Second operand 10 states. [2020-09-24 19:07:29,218 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:07:31,117 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:07:31,457 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 19:07:31,788 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:07:32,116 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 19:07:32,403 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:07:32,699 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:07:33,020 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:07:33,445 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:07:35,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:07:35,179 INFO L93 Difference]: Finished difference Result 1040 states and 1204 transitions. [2020-09-24 19:07:35,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-24 19:07:35,180 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 200 [2020-09-24 19:07:35,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:07:35,185 INFO L225 Difference]: With dead ends: 1040 [2020-09-24 19:07:35,185 INFO L226 Difference]: Without dead ends: 753 [2020-09-24 19:07:35,187 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=159, Invalid=441, Unknown=0, NotChecked=0, Total=600 [2020-09-24 19:07:35,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 753 states. [2020-09-24 19:07:35,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 753 to 643. [2020-09-24 19:07:35,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 643 states. [2020-09-24 19:07:35,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 701 transitions. [2020-09-24 19:07:35,272 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 701 transitions. Word has length 200 [2020-09-24 19:07:35,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:07:35,273 INFO L479 AbstractCegarLoop]: Abstraction has 643 states and 701 transitions. [2020-09-24 19:07:35,273 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 19:07:35,273 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 701 transitions. [2020-09-24 19:07:35,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2020-09-24 19:07:35,276 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:07:35,277 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:07:35,277 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 19:07:35,277 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:07:35,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:07:35,278 INFO L82 PathProgramCache]: Analyzing trace with hash -1653437071, now seen corresponding path program 1 times [2020-09-24 19:07:35,278 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:07:35,278 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1122508062] [2020-09-24 19:07:35,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:07:35,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:35,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:35,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:35,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:36,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:36,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:36,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-09-24 19:07:36,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 19:07:36,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1010 [2020-09-24 19:07:36,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:36,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:07:36,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 176 [2020-09-24 19:07:36,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-24 19:07:36,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:36,743 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:07:36,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:07:36,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:36,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:36,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:36,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:07:36,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:36,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-24 19:07:36,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:36,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:36,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:36,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:36,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:36,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:07:36,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:36,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:36,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:36,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:36,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:36,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:07:36,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:36,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:36,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:36,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:36,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:36,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:07:36,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:36,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:36,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:36,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:36,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:36,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:07:36,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:36,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:36,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:36,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:36,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:36,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:07:36,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:36,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:36,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:36,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:36,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:36,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:36,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:36,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:36,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:36,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:36,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:36,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:07:36,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:36,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:36,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:36,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:36,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:36,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:07:36,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:36,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:36,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:36,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:36,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:36,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:07:36,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:36,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:36,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:36,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:07:36,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:36,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:07:36,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:36,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:36,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:36,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:36,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:36,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 19:07:36,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:36,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:36,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:36,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:07:36,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:36,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:36,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:36,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:36,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:36,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:36,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:36,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-24 19:07:36,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:36,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:36,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:36,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:37,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:37,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-09-24 19:07:37,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:07:37,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 198 [2020-09-24 19:07:37,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:37,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:37,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:37,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-24 19:07:37,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:37,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:07:37,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:37,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:37,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:37,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:37,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-24 19:07:37,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:07:37,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-09-24 19:07:37,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:37,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:37,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:37,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:07:37,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:37,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:07:37,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:37,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:37,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:37,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 19:07:37,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:37,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-24 19:07:37,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:37,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:37,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:37,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 19:07:37,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:37,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:07:37,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:37,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:37,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:37,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:07:37,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:37,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 19:07:37,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:37,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:37,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:37,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-24 19:07:37,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:37,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:07:37,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:37,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:37,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:37,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:07:37,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:37,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:07:37,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:37,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:37,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:37,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:37,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:37,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:07:37,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:37,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:37,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:37,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:37,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:37,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:37,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:37,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:37,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:37,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:07:37,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:37,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-09-24 19:07:37,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:37,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:37,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:37,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:37,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:37,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:37,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:37,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:37,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:37,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:07:37,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:37,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-09-24 19:07:37,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:37,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:37,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:37,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:37,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:37,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:07:37,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:37,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:07:37,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:37,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:07:37,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:37,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:07:37,417 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1122508062] [2020-09-24 19:07:37,418 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:07:37,418 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 19:07:37,418 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017190744] [2020-09-24 19:07:37,419 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 19:07:37,419 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:07:37,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 19:07:37,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-24 19:07:37,421 INFO L87 Difference]: Start difference. First operand 643 states and 701 transitions. Second operand 11 states. [2020-09-24 19:07:37,915 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:07:39,595 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:07:39,890 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:07:40,202 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 19:07:40,507 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:07:40,877 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:07:41,233 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 19:07:41,544 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:07:41,889 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:07:43,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:07:43,318 INFO L93 Difference]: Finished difference Result 1342 states and 1539 transitions. [2020-09-24 19:07:43,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-09-24 19:07:43,319 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 205 [2020-09-24 19:07:43,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:07:43,325 INFO L225 Difference]: With dead ends: 1342 [2020-09-24 19:07:43,325 INFO L226 Difference]: Without dead ends: 814 [2020-09-24 19:07:43,327 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=270, Invalid=722, Unknown=0, NotChecked=0, Total=992 [2020-09-24 19:07:43,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 814 states. [2020-09-24 19:07:43,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 814 to 641. [2020-09-24 19:07:43,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 641 states. [2020-09-24 19:07:43,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 697 transitions. [2020-09-24 19:07:43,414 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 697 transitions. Word has length 205 [2020-09-24 19:07:43,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:07:43,415 INFO L479 AbstractCegarLoop]: Abstraction has 641 states and 697 transitions. [2020-09-24 19:07:43,415 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 19:07:43,415 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 697 transitions. [2020-09-24 19:07:43,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2020-09-24 19:07:43,418 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:07:43,418 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:07:43,419 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 19:07:43,419 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:07:43,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:07:43,419 INFO L82 PathProgramCache]: Analyzing trace with hash 1429527280, now seen corresponding path program 1 times [2020-09-24 19:07:43,420 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:07:43,420 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1968790025] [2020-09-24 19:07:43,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:07:43,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:43,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:44,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:44,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:44,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-09-24 19:07:44,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:07:44,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1016 [2020-09-24 19:07:44,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:44,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:07:44,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 196 [2020-09-24 19:07:44,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:07:44,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:44,749 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:07:44,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:07:44,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:44,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:44,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:44,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:07:44,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:44,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-09-24 19:07:44,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:44,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:44,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:44,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:44,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:44,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:07:44,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:44,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:44,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:44,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:44,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:44,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:44,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:44,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:44,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:44,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:44,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:44,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:07:44,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:44,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:44,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:44,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:44,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:44,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:44,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:44,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:44,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:44,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:44,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:44,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:07:44,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:44,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:44,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:44,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:44,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:44,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:07:44,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:44,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:44,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:44,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:44,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:44,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:07:44,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:44,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:44,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:44,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:44,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:44,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:44,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:44,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:44,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:44,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:44,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:44,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:07:44,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:44,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:44,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:44,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:07:44,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:44,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:44,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:44,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:44,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:44,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:44,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:44,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 19:07:44,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:44,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:44,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:44,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:07:44,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:44,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:07:44,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:44,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:44,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:44,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:44,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:45,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-24 19:07:45,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:45,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:45,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:45,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-24 19:07:45,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:45,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-09-24 19:07:45,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:45,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:07:45,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 19:07:45,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:07:45,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:45,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:07:45,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:45,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:45,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:45,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 19:07:45,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:45,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-24 19:07:45,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:45,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:07:45,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-24 19:07:45,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:07:45,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:45,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:07:45,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:45,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:45,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:45,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 19:07:45,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:45,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-09-24 19:07:45,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:45,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:07:45,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 19:07:45,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:07:45,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:45,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:07:45,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:45,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:45,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:45,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:07:45,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:45,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-24 19:07:45,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:45,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:07:45,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:45,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 19:07:45,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:45,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:07:45,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:45,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:45,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:45,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:07:45,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:45,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:07:45,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:45,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:45,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:45,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:45,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:45,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:07:45,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:45,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:45,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:45,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:07:45,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:45,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:45,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:45,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:45,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 19:07:45,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:45,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:45,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-09-24 19:07:45,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:45,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:45,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:45,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:45,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:45,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:45,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:45,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:45,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:07:45,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:45,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:45,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2020-09-24 19:07:45,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:45,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:45,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:45,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:45,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:45,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:45,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:45,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:45,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:07:45,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:45,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:45,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:07:45,521 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1968790025] [2020-09-24 19:07:45,522 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:07:45,522 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 19:07:45,522 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367208941] [2020-09-24 19:07:45,523 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 19:07:45,523 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:07:45,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 19:07:45,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-24 19:07:45,524 INFO L87 Difference]: Start difference. First operand 641 states and 697 transitions. Second operand 11 states. [2020-09-24 19:07:46,976 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:07:47,283 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 19:07:47,601 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-09-24 19:07:47,916 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:07:48,225 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 19:07:48,525 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:07:50,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:07:50,019 INFO L93 Difference]: Finished difference Result 1350 states and 1555 transitions. [2020-09-24 19:07:50,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 19:07:50,019 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 206 [2020-09-24 19:07:50,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:07:50,025 INFO L225 Difference]: With dead ends: 1350 [2020-09-24 19:07:50,025 INFO L226 Difference]: Without dead ends: 824 [2020-09-24 19:07:50,028 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2020-09-24 19:07:50,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 824 states. [2020-09-24 19:07:50,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 824 to 657. [2020-09-24 19:07:50,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 657 states. [2020-09-24 19:07:50,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 713 transitions. [2020-09-24 19:07:50,100 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 713 transitions. Word has length 206 [2020-09-24 19:07:50,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:07:50,101 INFO L479 AbstractCegarLoop]: Abstraction has 657 states and 713 transitions. [2020-09-24 19:07:50,101 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 19:07:50,101 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 713 transitions. [2020-09-24 19:07:50,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2020-09-24 19:07:50,104 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:07:50,104 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:07:50,104 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 19:07:50,105 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:07:50,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:07:50,105 INFO L82 PathProgramCache]: Analyzing trace with hash 1367198544, now seen corresponding path program 1 times [2020-09-24 19:07:50,105 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:07:50,105 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1943253993] [2020-09-24 19:07:50,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:07:50,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:50,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:50,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:51,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:51,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-09-24 19:07:51,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:07:51,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1045 [2020-09-24 19:07:51,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:51,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:07:51,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 188 [2020-09-24 19:07:51,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:07:51,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:51,483 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:07:51,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:07:51,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:51,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:51,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:51,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:07:51,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:51,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-24 19:07:51,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:51,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:51,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:51,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:51,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:51,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:07:51,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:51,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:51,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:51,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:51,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:51,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:51,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:51,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:51,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:51,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:51,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:51,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:07:51,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:51,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:51,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:51,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:51,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:51,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:51,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:51,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:51,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:51,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:51,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:51,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:07:51,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:51,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:51,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:51,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:51,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:51,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:07:51,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:51,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:51,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:51,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:51,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:51,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:07:51,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:51,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:51,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:51,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:51,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:51,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:07:51,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:51,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:51,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:51,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:51,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:51,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:07:51,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:51,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:51,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:51,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:07:51,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:51,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:07:51,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:51,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:51,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:51,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:51,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:51,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 19:07:51,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:51,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:51,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:51,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:07:51,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:51,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:51,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:51,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:51,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:51,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:51,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:51,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-24 19:07:51,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:51,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:51,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:51,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-24 19:07:51,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:51,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-09-24 19:07:51,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:51,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:07:51,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-09-24 19:07:51,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:07:51,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:51,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:07:51,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:51,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:51,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:51,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 19:07:51,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:51,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-24 19:07:51,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:51,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:07:51,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-24 19:07:51,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:07:51,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:51,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:07:51,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:51,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:51,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:51,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 19:07:51,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:51,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-24 19:07:51,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:51,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:07:51,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 19:07:51,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:07:51,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:51,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:07:51,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:51,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:51,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:51,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:07:51,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:51,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-24 19:07:51,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:51,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:07:51,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 19:07:51,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:07:51,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:51,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:07:51,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:51,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:51,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:51,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:07:51,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:51,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:07:51,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:51,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:07:51,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:51,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:07:51,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:52,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:07:52,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:52,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:52,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:52,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:07:52,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:52,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:07:52,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:52,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:52,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 19:07:52,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:52,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:52,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-09-24 19:07:52,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:52,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:52,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:52,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:52,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:52,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:52,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:52,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:52,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:07:52,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:52,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:52,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2020-09-24 19:07:52,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:52,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:52,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:52,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:52,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:52,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:52,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:52,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:52,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:07:52,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:52,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:52,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:07:52,071 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1943253993] [2020-09-24 19:07:52,071 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:07:52,071 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 19:07:52,071 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271653136] [2020-09-24 19:07:52,072 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 19:07:52,072 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:07:52,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 19:07:52,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-24 19:07:52,073 INFO L87 Difference]: Start difference. First operand 657 states and 713 transitions. Second operand 10 states. [2020-09-24 19:07:53,290 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:07:53,591 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 19:07:53,903 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:07:54,233 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 19:07:54,516 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:07:55,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:07:55,941 INFO L93 Difference]: Finished difference Result 1378 states and 1603 transitions. [2020-09-24 19:07:55,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-24 19:07:55,942 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 206 [2020-09-24 19:07:55,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:07:55,947 INFO L225 Difference]: With dead ends: 1378 [2020-09-24 19:07:55,947 INFO L226 Difference]: Without dead ends: 836 [2020-09-24 19:07:55,949 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-09-24 19:07:55,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 836 states. [2020-09-24 19:07:56,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 836 to 669. [2020-09-24 19:07:56,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 669 states. [2020-09-24 19:07:56,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 669 states to 669 states and 725 transitions. [2020-09-24 19:07:56,036 INFO L78 Accepts]: Start accepts. Automaton has 669 states and 725 transitions. Word has length 206 [2020-09-24 19:07:56,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:07:56,037 INFO L479 AbstractCegarLoop]: Abstraction has 669 states and 725 transitions. [2020-09-24 19:07:56,037 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 19:07:56,037 INFO L276 IsEmpty]: Start isEmpty. Operand 669 states and 725 transitions. [2020-09-24 19:07:56,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2020-09-24 19:07:56,040 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:07:56,041 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:07:56,041 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 19:07:56,041 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:07:56,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:07:56,041 INFO L82 PathProgramCache]: Analyzing trace with hash -787862835, now seen corresponding path program 1 times [2020-09-24 19:07:56,042 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:07:56,042 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [744590440] [2020-09-24 19:07:56,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:07:56,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:56,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:56,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking...