/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_spec5_product55.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 19:15:31,692 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 19:15:31,697 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 19:15:31,744 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 19:15:31,745 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 19:15:31,757 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 19:15:31,758 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 19:15:31,762 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 19:15:31,765 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 19:15:31,766 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 19:15:31,767 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 19:15:31,768 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 19:15:31,769 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 19:15:31,770 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 19:15:31,771 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 19:15:31,772 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 19:15:31,773 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 19:15:31,773 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 19:15:31,775 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 19:15:31,777 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 19:15:31,778 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 19:15:31,779 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 19:15:31,780 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 19:15:31,781 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 19:15:31,784 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 19:15:31,784 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 19:15:31,784 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 19:15:31,785 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 19:15:31,786 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 19:15:31,787 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 19:15:31,787 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 19:15:31,788 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 19:15:31,788 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 19:15:31,789 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 19:15:31,790 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 19:15:31,790 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 19:15:31,791 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 19:15:31,791 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 19:15:31,792 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 19:15:31,793 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 19:15:31,793 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 19:15:31,794 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 19:15:31,819 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 19:15:31,820 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 19:15:31,821 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 19:15:31,821 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 19:15:31,822 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 19:15:31,822 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 19:15:31,822 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 19:15:31,822 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 19:15:31,822 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 19:15:31,823 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 19:15:31,823 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 19:15:31,823 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 19:15:31,823 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 19:15:31,823 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 19:15:31,824 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 19:15:31,824 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 19:15:31,824 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 19:15:31,824 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 19:15:31,825 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 19:15:31,825 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 19:15:31,825 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 19:15:31,825 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 19:15:31,826 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 19:15:31,826 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 19:15:31,826 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 19:15:31,826 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 19:15:31,826 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 19:15:31,826 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 19:15:31,827 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 19:15:31,827 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 19:15:32,312 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 19:15:32,331 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 19:15:32,335 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 19:15:32,337 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 19:15:32,338 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 19:15:32,339 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product55.cil.c [2020-09-24 19:15:32,435 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/48cd23998/4d156a1450124c63b912c490fee64ace/FLAG2c238abfb [2020-09-24 19:15:33,060 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 19:15:33,061 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product55.cil.c [2020-09-24 19:15:33,089 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/48cd23998/4d156a1450124c63b912c490fee64ace/FLAG2c238abfb [2020-09-24 19:15:33,337 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/48cd23998/4d156a1450124c63b912c490fee64ace [2020-09-24 19:15:33,352 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 19:15:33,358 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 19:15:33,360 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 19:15:33,360 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 19:15:33,364 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 19:15:33,365 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:15:33" (1/1) ... [2020-09-24 19:15:33,369 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11cafb76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:15:33, skipping insertion in model container [2020-09-24 19:15:33,370 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:15:33" (1/1) ... [2020-09-24 19:15:33,379 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 19:15:33,460 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 19:15:33,898 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:15:34,024 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 19:15:34,168 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:15:34,210 INFO L208 MainTranslator]: Completed translation [2020-09-24 19:15:34,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:15:34 WrapperNode [2020-09-24 19:15:34,211 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 19:15:34,212 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 19:15:34,212 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 19:15:34,212 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 19:15:34,229 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:15:34" (1/1) ... [2020-09-24 19:15:34,229 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:15:34" (1/1) ... [2020-09-24 19:15:34,252 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:15:34" (1/1) ... [2020-09-24 19:15:34,253 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:15:34" (1/1) ... [2020-09-24 19:15:34,291 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:15:34" (1/1) ... [2020-09-24 19:15:34,304 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:15:34" (1/1) ... [2020-09-24 19:15:34,309 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:15:34" (1/1) ... [2020-09-24 19:15:34,318 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 19:15:34,318 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 19:15:34,318 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 19:15:34,319 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 19:15:34,320 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:15:34" (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 19:15:34,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 19:15:34,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 19:15:34,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 19:15:34,404 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 19:15:34,404 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 19:15:34,405 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 19:15:34,405 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 19:15:34,405 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 19:15:34,405 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 19:15:34,405 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 19:15:34,405 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 19:15:34,406 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 19:15:34,406 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 19:15:34,406 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 19:15:34,406 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 19:15:34,407 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 19:15:34,407 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 19:15:34,407 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 19:15:34,407 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 19:15:34,408 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 19:15:34,408 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 19:15:34,408 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 19:15:34,408 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 19:15:34,408 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 19:15:34,408 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 19:15:34,411 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 19:15:34,411 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 19:15:34,411 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 19:15:34,411 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 19:15:34,412 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 19:15:34,412 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 19:15:34,412 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-24 19:15:34,412 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 19:15:34,412 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 19:15:34,412 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 19:15:34,413 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 19:15:34,413 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 19:15:34,413 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 19:15:34,413 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 19:15:34,413 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 19:15:34,413 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 19:15:34,414 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-24 19:15:34,414 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-24 19:15:34,414 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-24 19:15:34,414 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 19:15:34,414 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 19:15:34,414 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 19:15:34,414 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 19:15:34,415 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 19:15:34,415 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 19:15:34,415 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 19:15:34,415 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 19:15:34,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 19:15:34,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 19:15:34,416 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 19:15:34,416 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 19:15:34,416 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 19:15:34,416 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 19:15:34,416 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 19:15:34,417 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 19:15:34,417 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 19:15:34,417 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 19:15:34,417 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 19:15:34,417 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 19:15:34,417 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 19:15:34,417 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 19:15:34,418 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 19:15:34,418 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 19:15:34,418 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 19:15:34,418 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 19:15:34,418 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 19:15:34,418 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-24 19:15:34,419 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 19:15:34,419 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 19:15:34,419 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 19:15:34,419 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 19:15:34,419 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 19:15:34,419 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 19:15:34,419 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 19:15:34,420 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 19:15:34,420 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 19:15:34,420 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 19:15:34,420 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 19:15:34,420 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 19:15:34,421 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 19:15:34,421 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 19:15:34,421 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 19:15:34,421 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 19:15:34,421 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 19:15:34,421 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 19:15:34,421 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-24 19:15:34,422 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-24 19:15:34,422 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 19:15:34,422 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 19:15:34,422 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 19:15:34,422 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 19:15:34,422 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 19:15:34,422 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-24 19:15:34,423 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 19:15:34,423 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 19:15:34,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 19:15:34,423 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 19:15:35,620 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 19:15:35,621 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 19:15:35,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:15:35 BoogieIcfgContainer [2020-09-24 19:15:35,630 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 19:15:35,631 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 19:15:35,632 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 19:15:35,635 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 19:15:35,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 07:15:33" (1/3) ... [2020-09-24 19:15:35,637 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33cba8d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:15:35, skipping insertion in model container [2020-09-24 19:15:35,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:15:34" (2/3) ... [2020-09-24 19:15:35,637 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33cba8d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:15:35, skipping insertion in model container [2020-09-24 19:15:35,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:15:35" (3/3) ... [2020-09-24 19:15:35,640 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product55.cil.c [2020-09-24 19:15:35,652 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 19:15:35,663 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 19:15:35,684 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 19:15:35,713 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 19:15:35,714 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 19:15:35,714 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 19:15:35,714 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 19:15:35,714 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 19:15:35,714 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 19:15:35,714 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 19:15:35,715 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 19:15:35,744 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states. [2020-09-24 19:15:35,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-24 19:15:35,764 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:15:35,766 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:15:35,767 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:15:35,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:15:35,774 INFO L82 PathProgramCache]: Analyzing trace with hash 1837457757, now seen corresponding path program 1 times [2020-09-24 19:15:35,784 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:15:35,785 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1643202621] [2020-09-24 19:15:35,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:15:36,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:36,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:36,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:37,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:37,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-24 19:15:37,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:15:37,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1002 [2020-09-24 19:15:37,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:37,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:37,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-24 19:15:37,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:37,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 19:15:37,578 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:15:37,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:15:37,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:37,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:37,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:37,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:15:37,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:37,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 146 [2020-09-24 19:15:37,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:37,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:37,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:37,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:37,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:37,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:15:37,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:37,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:37,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:37,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:37,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:37,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:15:37,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:37,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:37,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:37,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:37,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:37,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:15:37,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:37,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:37,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:37,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:37,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:37,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:15:37,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:37,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:37,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:37,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:37,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:37,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:15:37,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:37,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:37,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:37,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:37,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:37,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:15:37,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:37,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:37,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:37,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:37,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:37,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:15:37,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:37,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:37,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:37,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:37,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:37,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:37,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:37,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:37,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:37,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:37,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:37,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:15:37,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:37,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:37,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:37,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:15:37,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:37,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:15:37,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:37,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:37,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:37,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:37,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:37,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 19:15:37,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:37,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:37,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:37,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 19:15:37,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:37,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:15:37,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:37,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:37,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 19:15:37,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:37,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:37,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:15:37,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:37,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:37,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:37,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:37,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:37,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:37,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:37,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:37,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:37,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:37,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:37,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-24 19:15:37,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:37,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:37,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:37,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:37,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:37,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:15:37,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:37,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:37,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:15:37,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:37,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:37,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-24 19:15:37,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:37,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:37,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:37,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:37,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:37,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:15:37,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:37,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:37,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:15:37,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:37,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:37,960 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 19:15:37,961 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1643202621] [2020-09-24 19:15:37,963 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:15:37,964 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 19:15:37,965 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869245131] [2020-09-24 19:15:37,972 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 19:15:37,972 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:15:37,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 19:15:37,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-24 19:15:37,995 INFO L87 Difference]: Start difference. First operand 356 states. Second operand 4 states. [2020-09-24 19:15:39,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:15:39,523 INFO L93 Difference]: Finished difference Result 574 states and 675 transitions. [2020-09-24 19:15:39,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-24 19:15:39,525 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-09-24 19:15:39,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:15:39,549 INFO L225 Difference]: With dead ends: 574 [2020-09-24 19:15:39,549 INFO L226 Difference]: Without dead ends: 354 [2020-09-24 19:15:39,556 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-24 19:15:39,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2020-09-24 19:15:39,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 305. [2020-09-24 19:15:39,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 305 states. [2020-09-24 19:15:39,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 335 transitions. [2020-09-24 19:15:39,707 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 335 transitions. Word has length 160 [2020-09-24 19:15:39,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:15:39,708 INFO L479 AbstractCegarLoop]: Abstraction has 305 states and 335 transitions. [2020-09-24 19:15:39,708 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 19:15:39,709 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 335 transitions. [2020-09-24 19:15:39,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-24 19:15:39,714 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:15:39,715 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:15:39,715 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 19:15:39,715 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:15:39,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:15:39,716 INFO L82 PathProgramCache]: Analyzing trace with hash -1789816380, now seen corresponding path program 1 times [2020-09-24 19:15:39,716 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:15:39,716 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [845417700] [2020-09-24 19:15:39,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:15:39,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:39,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:39,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:40,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:40,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-09-24 19:15:40,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:15:40,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1051 [2020-09-24 19:15:40,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:40,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:15:40,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-24 19:15:40,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 19:15:40,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:41,274 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:15:41,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:15:41,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:41,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:41,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:41,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:15:41,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:41,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-09-24 19:15:41,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:41,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:41,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:41,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:41,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:41,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:15:41,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:41,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:41,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:41,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:41,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:41,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:15:41,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:41,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:41,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:41,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:41,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:41,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:15:41,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:41,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:41,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:41,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:41,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:41,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:41,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:41,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:41,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:41,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:41,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:41,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:15:41,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:41,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:41,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:41,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:41,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:41,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:15:41,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:41,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:41,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:41,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:41,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:41,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:15:41,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:41,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:41,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:41,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:41,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:41,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:15:41,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:41,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:41,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:41,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:41,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:41,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:15:41,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:41,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:41,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:41,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:15:41,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:41,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:15:41,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:41,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:41,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:41,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:41,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:41,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 19:15:41,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:41,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:41,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:41,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 19:15:41,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:41,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:15:41,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:41,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:41,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 19:15:41,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:41,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:41,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:15:41,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:41,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:41,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:41,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:41,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:41,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:15:41,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:41,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:41,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:41,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:41,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:41,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-24 19:15:41,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:41,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:41,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:41,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:41,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:41,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:15:41,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:41,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:41,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:15:41,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:41,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:41,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 19:15:41,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:41,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:41,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:41,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:41,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:41,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:15:41,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:41,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:41,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:15:41,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:41,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:41,621 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 19:15:41,622 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [845417700] [2020-09-24 19:15:41,622 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:15:41,622 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 19:15:41,623 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810538476] [2020-09-24 19:15:41,625 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 19:15:41,626 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:15:41,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 19:15:41,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 19:15:41,627 INFO L87 Difference]: Start difference. First operand 305 states and 335 transitions. Second operand 5 states. [2020-09-24 19:15:42,561 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:15:43,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:15:43,881 INFO L93 Difference]: Finished difference Result 497 states and 563 transitions. [2020-09-24 19:15:43,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 19:15:43,882 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 161 [2020-09-24 19:15:43,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:15:43,886 INFO L225 Difference]: With dead ends: 497 [2020-09-24 19:15:43,887 INFO L226 Difference]: Without dead ends: 343 [2020-09-24 19:15:43,888 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 19:15:43,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2020-09-24 19:15:43,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 295. [2020-09-24 19:15:43,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 295 states. [2020-09-24 19:15:43,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 322 transitions. [2020-09-24 19:15:43,939 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 322 transitions. Word has length 161 [2020-09-24 19:15:43,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:15:43,940 INFO L479 AbstractCegarLoop]: Abstraction has 295 states and 322 transitions. [2020-09-24 19:15:43,940 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 19:15:43,940 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 322 transitions. [2020-09-24 19:15:43,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-09-24 19:15:43,943 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:15:43,944 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:15:43,944 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 19:15:43,944 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:15:43,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:15:43,945 INFO L82 PathProgramCache]: Analyzing trace with hash 350266212, now seen corresponding path program 1 times [2020-09-24 19:15:43,945 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:15:43,945 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [251925578] [2020-09-24 19:15:43,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:15:44,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:44,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:44,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:44,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:45,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:45,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-24 19:15:45,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:15:45,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1034 [2020-09-24 19:15:45,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:45,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:15:45,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 169 [2020-09-24 19:15:45,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 19:15:45,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:45,415 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:15:45,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:15:45,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:45,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:45,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:45,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:15:45,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:45,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-09-24 19:15:45,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:45,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:45,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:45,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:45,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:45,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:15:45,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:45,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:45,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:45,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:45,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:45,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:45,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:45,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:45,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:45,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:45,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:45,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:15:45,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:45,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:45,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:45,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:45,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:45,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:45,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:45,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:45,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:45,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:45,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:45,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:15:45,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:45,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:45,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:45,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:45,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:45,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:15:45,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:45,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:45,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:45,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:45,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:45,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:15:45,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:45,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:45,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:45,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:45,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:45,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:45,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:45,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:45,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:45,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:45,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:45,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:15:45,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:45,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:45,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:45,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:15:45,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:45,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:45,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:45,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:45,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:45,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:45,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 19:15:45,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 19:15:45,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:45,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:45,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:45,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 19:15:45,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:45,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:45,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:45,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:45,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:45,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:45,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:45,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:15:45,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:45,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:45,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:45,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:45,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:45,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:45,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:45,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:45,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:45,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:45,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:45,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-24 19:15:45,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:45,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:45,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:45,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:45,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:45,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:15:45,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:45,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:15:45,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:45,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:15:45,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:45,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-24 19:15:45,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:45,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:45,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:45,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:45,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:45,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 19:15:45,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:45,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:15:45,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:45,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:15:45,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:45,810 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-24 19:15:45,811 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [251925578] [2020-09-24 19:15:45,812 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:15:45,812 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 19:15:45,813 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114910855] [2020-09-24 19:15:45,814 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 19:15:45,814 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:15:45,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 19:15:45,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 19:15:45,817 INFO L87 Difference]: Start difference. First operand 295 states and 322 transitions. Second operand 9 states. [2020-09-24 19:15:46,336 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:15:47,200 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 19:15:47,533 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-24 19:15:48,778 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:15:49,102 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 19:15:49,442 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:15:50,070 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:15:50,382 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 19:15:50,713 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:15:51,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:15:51,550 INFO L93 Difference]: Finished difference Result 616 states and 721 transitions. [2020-09-24 19:15:51,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 19:15:51,551 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 170 [2020-09-24 19:15:51,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:15:51,557 INFO L225 Difference]: With dead ends: 616 [2020-09-24 19:15:51,557 INFO L226 Difference]: Without dead ends: 436 [2020-09-24 19:15:51,559 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-24 19:15:51,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2020-09-24 19:15:51,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 388. [2020-09-24 19:15:51,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 388 states. [2020-09-24 19:15:51,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 430 transitions. [2020-09-24 19:15:51,616 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 430 transitions. Word has length 170 [2020-09-24 19:15:51,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:15:51,617 INFO L479 AbstractCegarLoop]: Abstraction has 388 states and 430 transitions. [2020-09-24 19:15:51,617 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 19:15:51,617 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 430 transitions. [2020-09-24 19:15:51,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2020-09-24 19:15:51,620 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:15:51,621 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:15:51,621 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 19:15:51,621 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:15:51,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:15:51,621 INFO L82 PathProgramCache]: Analyzing trace with hash 1477920914, now seen corresponding path program 1 times [2020-09-24 19:15:51,622 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:15:51,622 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1493460597] [2020-09-24 19:15:51,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:15:51,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:51,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:52,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:52,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 260 [2020-09-24 19:15:52,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:52,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1003 [2020-09-24 19:15:52,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:52,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:15:52,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 205 [2020-09-24 19:15:52,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:15:52,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:52,992 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:15:52,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:15:53,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:53,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:53,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:53,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:15:53,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:53,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-09-24 19:15:53,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:53,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:53,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:53,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:53,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:53,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:15:53,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:53,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:53,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:53,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:53,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:53,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:53,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:53,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:53,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:53,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:53,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:53,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:15:53,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:53,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:53,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:53,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:53,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:53,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:15:53,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:53,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:53,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:53,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:53,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:53,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:15:53,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:53,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:53,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:53,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:53,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:53,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:15:53,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:53,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:53,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:53,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:53,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:53,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:15:53,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:53,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:53,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:53,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:53,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:53,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:15:53,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:53,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:53,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:53,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:53,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:53,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:15:53,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:53,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:53,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:53,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:15:53,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:53,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:53,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:53,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:53,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:53,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:53,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:53,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 19:15:53,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:53,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:53,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:53,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 19:15:53,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:53,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:15:53,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:53,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:53,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:53,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:53,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:53,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:15:53,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:53,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:53,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:53,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:53,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:53,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:53,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:53,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:53,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:53,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:53,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:53,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 19:15:53,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:53,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:53,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:53,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-24 19:15:53,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:53,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-09-24 19:15:53,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:53,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:15:53,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 19:15:53,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:15:53,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:53,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:15:53,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:53,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:53,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:53,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 19:15:53,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:53,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-09-24 19:15:53,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:53,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:15:53,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-24 19:15:53,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:15:53,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:53,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:15:53,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:53,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:53,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:53,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 19:15:53,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:53,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-09-24 19:15:53,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:53,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:15:53,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 19:15:53,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:15:53,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:53,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:15:53,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:53,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:53,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:53,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:15:53,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:53,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-24 19:15:53,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:53,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:15:53,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:53,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 19:15:53,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:53,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:15:53,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:53,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:53,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:53,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:15:53,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:53,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:15:53,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:53,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:53,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:53,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:53,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:53,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:15:53,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:53,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:53,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:53,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:15:53,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:53,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:15:53,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:53,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:53,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 19:15:53,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:53,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:53,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2020-09-24 19:15:53,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:53,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:53,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:53,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:53,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:53,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:15:53,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:53,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:53,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:15:53,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:53,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:53,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-09-24 19:15:53,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:53,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:53,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:53,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:53,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:53,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:15:53,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:53,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:53,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:15:53,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:53,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:53,751 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 19:15:53,752 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1493460597] [2020-09-24 19:15:53,752 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:15:53,752 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 19:15:53,752 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340465198] [2020-09-24 19:15:53,753 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 19:15:53,753 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:15:53,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 19:15:53,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 19:15:53,755 INFO L87 Difference]: Start difference. First operand 388 states and 430 transitions. Second operand 10 states. [2020-09-24 19:15:55,534 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:15:55,868 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 19:15:56,209 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-09-24 19:15:56,536 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:15:56,856 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 19:15:57,115 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:15:58,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:15:58,259 INFO L93 Difference]: Finished difference Result 743 states and 868 transitions. [2020-09-24 19:15:58,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 19:15:58,259 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 213 [2020-09-24 19:15:58,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:15:58,265 INFO L225 Difference]: With dead ends: 743 [2020-09-24 19:15:58,265 INFO L226 Difference]: Without dead ends: 470 [2020-09-24 19:15:58,266 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-09-24 19:15:58,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2020-09-24 19:15:58,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 405. [2020-09-24 19:15:58,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 405 states. [2020-09-24 19:15:58,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 449 transitions. [2020-09-24 19:15:58,321 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 449 transitions. Word has length 213 [2020-09-24 19:15:58,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:15:58,322 INFO L479 AbstractCegarLoop]: Abstraction has 405 states and 449 transitions. [2020-09-24 19:15:58,322 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 19:15:58,322 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 449 transitions. [2020-09-24 19:15:58,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2020-09-24 19:15:58,325 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:15:58,326 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:15:58,326 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 19:15:58,326 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:15:58,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:15:58,326 INFO L82 PathProgramCache]: Analyzing trace with hash 1415592178, now seen corresponding path program 1 times [2020-09-24 19:15:58,327 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:15:58,327 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1194445136] [2020-09-24 19:15:58,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:15:58,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:58,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:59,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:59,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 260 [2020-09-24 19:15:59,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:59,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 856 [2020-09-24 19:15:59,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:59,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:15:59,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 197 [2020-09-24 19:15:59,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:15:59,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:59,520 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:15:59,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:15:59,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:59,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:59,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:59,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:15:59,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:59,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-09-24 19:15:59,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:59,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:59,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:59,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:59,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:59,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:15:59,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:59,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:59,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:59,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:59,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:59,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:15:59,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:59,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:59,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:59,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:59,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:59,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:15:59,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:59,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:59,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:59,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:59,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:59,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:59,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:59,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:59,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:59,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:59,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:59,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:15:59,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:59,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:59,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:59,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:59,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:59,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:15:59,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:59,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:59,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:59,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:59,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:59,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:15:59,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:59,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:59,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:59,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:59,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:59,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:15:59,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:59,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:59,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:59,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:59,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:59,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:15:59,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:59,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:59,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:59,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:15:59,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:59,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:59,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:59,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:59,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:59,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:59,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:59,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 19:15:59,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:59,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:59,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:59,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 19:15:59,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:59,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:15:59,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:59,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:59,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:59,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:59,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:59,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:15:59,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:59,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:59,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:59,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:59,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:59,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:15:59,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:59,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:59,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:59,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:59,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:59,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 19:15:59,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:59,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:59,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:59,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-24 19:15:59,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:59,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-09-24 19:15:59,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:59,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:15:59,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-09-24 19:15:59,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:15:59,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:59,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:15:59,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:59,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:59,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:59,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 19:15:59,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:59,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-09-24 19:15:59,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:59,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:15:59,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-24 19:15:59,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:15:59,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:59,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:15:59,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:59,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:59,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:59,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 19:15:59,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:59,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-24 19:15:59,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:59,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:15:59,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 19:15:59,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:15:59,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:00,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:16:00,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:00,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:00,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:00,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:16:00,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:00,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-24 19:16:00,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:00,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:16:00,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 19:16:00,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:16:00,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:00,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:16:00,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:00,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:00,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:00,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:16:00,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:00,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:16:00,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:00,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:16:00,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:00,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:16:00,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:00,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:16:00,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:00,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:00,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:00,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:16:00,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:00,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:16:00,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:00,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:00,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 19:16:00,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:00,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:00,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2020-09-24 19:16:00,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:00,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:00,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:00,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:16:00,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:00,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:16:00,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:00,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:00,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:16:00,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:00,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:00,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-09-24 19:16:00,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:00,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:00,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:00,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:16:00,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:00,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:16:00,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:00,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:00,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:16:00,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:00,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:00,192 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 19:16:00,193 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1194445136] [2020-09-24 19:16:00,193 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:16:00,193 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 19:16:00,194 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424583837] [2020-09-24 19:16:00,194 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 19:16:00,195 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:16:00,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 19:16:00,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-24 19:16:00,196 INFO L87 Difference]: Start difference. First operand 405 states and 449 transitions. Second operand 9 states. [2020-09-24 19:16:01,636 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:16:01,977 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 19:16:02,295 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:16:02,628 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 19:16:02,935 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:16:04,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:16:04,112 INFO L93 Difference]: Finished difference Result 766 states and 905 transitions. [2020-09-24 19:16:04,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 19:16:04,113 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 213 [2020-09-24 19:16:04,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:16:04,116 INFO L225 Difference]: With dead ends: 766 [2020-09-24 19:16:04,117 INFO L226 Difference]: Without dead ends: 476 [2020-09-24 19:16:04,118 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-09-24 19:16:04,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2020-09-24 19:16:04,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 411. [2020-09-24 19:16:04,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 411 states. [2020-09-24 19:16:04,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 455 transitions. [2020-09-24 19:16:04,168 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 455 transitions. Word has length 213 [2020-09-24 19:16:04,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:16:04,169 INFO L479 AbstractCegarLoop]: Abstraction has 411 states and 455 transitions. [2020-09-24 19:16:04,169 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 19:16:04,169 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 455 transitions. [2020-09-24 19:16:04,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2020-09-24 19:16:04,172 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:16:04,173 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:16:04,173 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 19:16:04,173 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:16:04,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:16:04,174 INFO L82 PathProgramCache]: Analyzing trace with hash -739469201, now seen corresponding path program 1 times [2020-09-24 19:16:04,174 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:16:04,174 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [673183219] [2020-09-24 19:16:04,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:16:04,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:04,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:05,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:05,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 260 [2020-09-24 19:16:05,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:05,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1046 [2020-09-24 19:16:05,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:05,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 19:16:05,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 19:16:05,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-09-24 19:16:05,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:05,598 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:16:05,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:16:05,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:05,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:05,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:05,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:16:05,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:05,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 247 [2020-09-24 19:16:05,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:05,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:05,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:05,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 19:16:05,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:05,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:16:05,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:05,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:05,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:05,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:16:05,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:05,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:16:05,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:05,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:05,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:05,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:16:05,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:05,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:16:05,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:05,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:05,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:05,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:16:05,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:05,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:16:05,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:05,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:05,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:05,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:16:05,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:05,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:16:05,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:05,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:05,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:05,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:16:05,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:05,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:16:05,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:05,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:05,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:05,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:16:05,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:05,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:16:05,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:05,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:05,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:05,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:16:05,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:05,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:16:05,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:05,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:05,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:05,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:16:05,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:05,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:16:05,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:05,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:05,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:05,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:16:05,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:05,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:16:05,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:05,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:05,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:05,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 19:16:05,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:05,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 19:16:05,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:05,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:05,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:05,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 19:16:05,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:05,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:16:05,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:05,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:05,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:05,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 19:16:05,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:05,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:16:05,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:05,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:05,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:05,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:16:05,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:05,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:16:05,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:05,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:05,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:05,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:05,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:06,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 19:16:06,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:06,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:06,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:06,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-24 19:16:06,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:06,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 19:16:06,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:06,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:06,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-09-24 19:16:06,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 19:16:06,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:06,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:16:06,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:06,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:06,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:06,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 19:16:06,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:06,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-24 19:16:06,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:06,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:06,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:06,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-24 19:16:06,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:06,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:16:06,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:06,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:06,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:06,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 19:16:06,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:06,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-24 19:16:06,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:06,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:06,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:06,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 19:16:06,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:06,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:16:06,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:06,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:06,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:06,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:16:06,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:06,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 19:16:06,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:06,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:06,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:06,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:16:06,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:06,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:16:06,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:06,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:06,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:06,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:16:06,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:06,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:16:06,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:06,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:06,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:06,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 19:16:06,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:06,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:16:06,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:06,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:06,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:06,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:16:06,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:06,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:16:06,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:06,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:06,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:06,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 19:16:06,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:06,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2020-09-24 19:16:06,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:06,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:06,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:06,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:16:06,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:06,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:16:06,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:06,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:06,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:16:06,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:06,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:06,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-09-24 19:16:06,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:06,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:06,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:06,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:16:06,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:06,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:16:06,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:06,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:06,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:16:06,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:06,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:06,410 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 19:16:06,410 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [673183219] [2020-09-24 19:16:06,411 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:16:06,411 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 19:16:06,411 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679165419] [2020-09-24 19:16:06,412 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 19:16:06,412 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:16:06,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 19:16:06,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-24 19:16:06,412 INFO L87 Difference]: Start difference. First operand 411 states and 455 transitions. Second operand 7 states. [2020-09-24 19:16:07,150 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:16:07,744 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:16:10,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:16:10,664 INFO L93 Difference]: Finished difference Result 1072 states and 1276 transitions. [2020-09-24 19:16:10,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-24 19:16:10,665 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 213 [2020-09-24 19:16:10,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:16:10,671 INFO L225 Difference]: With dead ends: 1072 [2020-09-24 19:16:10,671 INFO L226 Difference]: Without dead ends: 776 [2020-09-24 19:16:10,673 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 41 SyntacticMatches, 4 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2020-09-24 19:16:10,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 776 states. [2020-09-24 19:16:10,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 776 to 703. [2020-09-24 19:16:10,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 703 states. [2020-09-24 19:16:10,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 703 states to 703 states and 797 transitions. [2020-09-24 19:16:10,756 INFO L78 Accepts]: Start accepts. Automaton has 703 states and 797 transitions. Word has length 213 [2020-09-24 19:16:10,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:16:10,756 INFO L479 AbstractCegarLoop]: Abstraction has 703 states and 797 transitions. [2020-09-24 19:16:10,757 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 19:16:10,757 INFO L276 IsEmpty]: Start isEmpty. Operand 703 states and 797 transitions. [2020-09-24 19:16:10,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2020-09-24 19:16:10,760 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:16:10,761 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:16:10,761 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 19:16:10,761 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:16:10,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:16:10,761 INFO L82 PathProgramCache]: Analyzing trace with hash 1571665167, now seen corresponding path program 1 times [2020-09-24 19:16:10,762 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:16:10,762 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [777810153] [2020-09-24 19:16:10,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:16:10,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:10,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:11,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:11,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:11,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 267 [2020-09-24 19:16:11,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:16:11,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1021 [2020-09-24 19:16:11,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:11,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 19:16:11,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 145 [2020-09-24 19:16:11,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-09-24 19:16:11,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:12,194 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:16:12,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:16:12,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:12,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:12,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:12,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:16:12,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:12,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-09-24 19:16:12,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:12,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:12,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:12,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:12,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:12,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:16:12,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:12,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:12,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:12,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:16:12,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:12,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:16:12,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:12,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:12,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:12,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:12,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:12,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:16:12,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:12,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:12,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:12,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:16:12,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:12,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:16:12,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:12,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:12,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:12,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:12,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:12,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:16:12,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:12,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:12,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:12,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:16:12,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:12,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:16:12,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:12,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:12,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:12,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:12,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:12,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:16:12,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:12,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:12,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:12,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:16:12,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:12,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:16:12,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:12,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:12,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:12,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:12,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:12,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:16:12,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:12,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:12,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:12,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:16:12,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:12,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:16:12,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:12,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:12,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:12,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:12,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:12,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 19:16:12,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:12,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:12,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:12,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:16:12,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:12,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 19:16:12,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:12,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 19:16:12,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:12,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 19:16:12,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:12,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 19:16:12,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:12,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:12,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:12,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 19:16:12,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:12,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:16:12,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:12,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:12,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:12,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 19:16:12,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:12,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:16:12,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:12,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:12,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:12,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:16:12,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:12,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:16:12,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:12,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:12,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:12,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:12,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:12,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-24 19:16:12,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:12,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:12,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:12,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-24 19:16:12,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:12,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-24 19:16:12,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:12,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 19:16:12,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:12,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-24 19:16:12,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:12,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:16:12,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:12,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:12,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:12,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 19:16:12,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:12,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-24 19:16:12,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:12,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:12,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:12,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-24 19:16:12,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:12,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:16:12,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:12,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:12,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:12,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 19:16:12,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:12,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-24 19:16:12,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:12,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:12,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:12,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 19:16:12,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:12,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:16:12,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:12,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:12,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:12,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:16:12,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:12,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 19:16:12,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:12,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:12,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:12,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:16:12,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:12,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:16:12,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:12,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:12,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:12,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:16:12,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:12,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:16:12,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:12,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:12,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:12,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 19:16:12,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:12,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:16:12,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:12,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:12,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:12,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:16:12,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:12,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:16:12,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:12,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:12,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:12,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 19:16:12,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:12,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-09-24 19:16:12,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:12,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:12,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:12,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:16:12,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:12,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 19:16:12,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:12,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:16:12,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:12,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:16:12,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:12,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-09-24 19:16:12,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:12,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:12,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:12,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:16:12,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:12,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:16:12,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:12,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:12,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:16:12,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:12,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:12,844 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 19:16:12,844 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [777810153] [2020-09-24 19:16:12,845 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:16:12,845 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-09-24 19:16:12,845 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080117712] [2020-09-24 19:16:12,846 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-24 19:16:12,846 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:16:12,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-24 19:16:12,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2020-09-24 19:16:12,847 INFO L87 Difference]: Start difference. First operand 703 states and 797 transitions. Second operand 14 states. [2020-09-24 19:16:13,352 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:16:14,311 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:16:15,098 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:16:15,421 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 19:16:15,826 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:16:16,221 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 19:16:16,568 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 19:16:17,048 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 19:16:17,429 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:16:18,765 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 19:16:19,097 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 19:16:19,436 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 19:16:19,808 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 19:16:20,142 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 19:16:22,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:16:22,154 INFO L93 Difference]: Finished difference Result 1470 states and 1772 transitions. [2020-09-24 19:16:22,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-09-24 19:16:22,155 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 218 [2020-09-24 19:16:22,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:16:22,162 INFO L225 Difference]: With dead ends: 1470 [2020-09-24 19:16:22,162 INFO L226 Difference]: Without dead ends: 995 [2020-09-24 19:16:22,165 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 495 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=490, Invalid=1580, Unknown=0, NotChecked=0, Total=2070 [2020-09-24 19:16:22,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 995 states. [2020-09-24 19:16:22,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 995 to 891. [2020-09-24 19:16:22,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 891 states. [2020-09-24 19:16:22,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 891 states to 891 states and 1014 transitions. [2020-09-24 19:16:22,263 INFO L78 Accepts]: Start accepts. Automaton has 891 states and 1014 transitions. Word has length 218 [2020-09-24 19:16:22,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:16:22,263 INFO L479 AbstractCegarLoop]: Abstraction has 891 states and 1014 transitions. [2020-09-24 19:16:22,263 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-24 19:16:22,263 INFO L276 IsEmpty]: Start isEmpty. Operand 891 states and 1014 transitions. [2020-09-24 19:16:22,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2020-09-24 19:16:22,267 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:16:22,267 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:16:22,267 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 19:16:22,268 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:16:22,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:16:22,268 INFO L82 PathProgramCache]: Analyzing trace with hash -1261562542, now seen corresponding path program 1 times [2020-09-24 19:16:22,268 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:16:22,268 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1157254909] [2020-09-24 19:16:22,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:16:22,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:22,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:22,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:23,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:23,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 392 [2020-09-24 19:16:23,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:16:23,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1010 [2020-09-24 19:16:23,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:23,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:23,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-09-24 19:16:23,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-09-24 19:16:23,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:23,756 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:16:23,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:16:23,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:23,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:23,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:23,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:16:23,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:23,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-09-24 19:16:23,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:23,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:23,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:23,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:23,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:23,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:16:23,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:23,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:23,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:23,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:16:23,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:23,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:16:23,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:23,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:23,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:23,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:23,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:23,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:16:23,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:23,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:23,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:23,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:16:23,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:23,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:16:23,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:23,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:23,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:23,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:23,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:23,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:16:23,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:23,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:23,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:23,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:16:23,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:23,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:16:23,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:23,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:23,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:23,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:23,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:23,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:16:23,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:23,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:23,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:23,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:16:23,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:23,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:16:23,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:23,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:23,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:23,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:23,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:23,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:16:23,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:23,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:23,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:23,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:16:23,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:23,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:16:23,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:23,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:23,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:23,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:23,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:23,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 19:16:23,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:23,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:23,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:23,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:16:23,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:23,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:16:23,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:23,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:23,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:23,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:23,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:23,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 19:16:23,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:23,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:23,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:23,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-24 19:16:23,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:23,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-24 19:16:23,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:23,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:23,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:23,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-24 19:16:23,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:24,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:16:24,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:24,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:24,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:24,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 19:16:24,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:24,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:16:24,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:24,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:24,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:24,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:24,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:24,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:16:24,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:24,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:24,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:24,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:16:24,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:24,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:16:24,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:24,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:24,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:24,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:24,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:24,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 19:16:24,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:24,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:24,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:24,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 19:16:24,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:24,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 19:16:24,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:24,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:24,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:24,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 19:16:24,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:24,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:16:24,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:24,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:24,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:24,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:16:24,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:24,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:16:24,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:24,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:24,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:24,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:24,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:24,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-09-24 19:16:24,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:24,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:24,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:24,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:16:24,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:24,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:16:24,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:24,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:24,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:24,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 19:16:24,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:24,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2020-09-24 19:16:24,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:24,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:24,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:24,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-09-24 19:16:24,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:24,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-24 19:16:24,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:24,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:24,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-24 19:16:24,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 19:16:24,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:24,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:16:24,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:24,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:24,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:24,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 19:16:24,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:24,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:16:24,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:24,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:24,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:24,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:24,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:24,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:16:24,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:24,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:24,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:24,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:16:24,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:24,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:16:24,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:24,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:24,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:24,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:24,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:24,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 19:16:24,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:24,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:24,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:24,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-24 19:16:24,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:24,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-24 19:16:24,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:24,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:24,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:24,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-24 19:16:24,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:24,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:16:24,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:24,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:24,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:24,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 19:16:24,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:24,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 19:16:24,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:24,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:24,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:24,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:24,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:24,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:16:24,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:24,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:24,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:24,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 19:16:24,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:24,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 19:16:24,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:24,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:24,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:24,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:24,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:24,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:16:24,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:24,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:24,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:24,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:16:24,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:24,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:16:24,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:24,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:24,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:24,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:24,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:24,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:16:24,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:24,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:24,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:24,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:16:24,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:24,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:16:24,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:24,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:24,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:24,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:24,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:24,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:16:24,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:24,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:24,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:24,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:16:24,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:24,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:16:24,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:24,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:24,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:24,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:24,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:24,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-24 19:16:24,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:24,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:24,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:24,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 19:16:24,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:24,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 19:16:24,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:24,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:24,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:24,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 19:16:24,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:24,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:16:24,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:24,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:24,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:24,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:16:24,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:24,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:16:24,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:24,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:24,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:24,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:24,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:24,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2020-09-24 19:16:24,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:24,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:24,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:24,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 19:16:24,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:24,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:16:24,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:24,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:24,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 19:16:24,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:24,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:24,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:16:24,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:24,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:24,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:24,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:16:24,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:24,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:16:24,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:24,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:24,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:24,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:24,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:24,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2020-09-24 19:16:24,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:24,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:24,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:24,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:16:24,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:24,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:16:24,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:24,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:24,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 19:16:24,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:24,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:24,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2020-09-24 19:16:24,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat