/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 --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 interpolation-heuristic=FIRST --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_spec4_product33.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 11:12:42,704 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 11:12:42,709 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 11:12:42,753 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 11:12:42,754 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 11:12:42,756 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 11:12:42,757 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 11:12:42,766 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 11:12:42,768 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 11:12:42,769 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 11:12:42,772 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 11:12:42,773 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 11:12:42,773 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 11:12:42,776 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 11:12:42,777 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 11:12:42,780 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 11:12:42,781 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 11:12:42,782 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 11:12:42,786 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 11:12:42,788 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 11:12:42,791 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 11:12:42,792 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 11:12:42,794 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 11:12:42,795 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 11:12:42,803 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 11:12:42,803 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 11:12:42,804 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 11:12:42,809 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 11:12:42,810 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 11:12:42,812 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 11:12:42,812 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 11:12:42,813 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 11:12:42,814 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 11:12:42,815 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 11:12:42,817 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 11:12:42,817 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 11:12:42,818 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 11:12:42,818 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 11:12:42,818 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 11:12:42,819 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 11:12:42,821 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 11:12:42,822 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 [2020-09-21 11:12:42,873 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 11:12:42,873 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 11:12:42,875 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 11:12:42,876 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 11:12:42,876 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 11:12:42,876 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 11:12:42,877 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 11:12:42,877 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 11:12:42,877 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 11:12:42,877 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 11:12:42,878 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 11:12:42,879 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 11:12:42,879 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 11:12:42,879 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 11:12:42,879 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 11:12:42,880 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 11:12:42,880 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 11:12:42,880 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 11:12:42,880 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 11:12:42,881 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 11:12:42,881 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 11:12:42,881 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:12:42,881 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 11:12:42,882 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 11:12:42,882 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 11:12:42,882 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 11:12:42,882 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 11:12:42,882 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 11:12:42,883 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 11:12:42,883 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.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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-21 11:12:43,356 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 11:12:43,380 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 11:12:43,384 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 11:12:43,386 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 11:12:43,386 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 11:12:43,387 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product33.cil.c [2020-09-21 11:12:43,475 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6e3b691e2/97508498389a47b7a31f4c2dae932f30/FLAG11c8da8f5 [2020-09-21 11:12:44,137 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 11:12:44,138 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product33.cil.c [2020-09-21 11:12:44,165 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6e3b691e2/97508498389a47b7a31f4c2dae932f30/FLAG11c8da8f5 [2020-09-21 11:12:44,358 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6e3b691e2/97508498389a47b7a31f4c2dae932f30 [2020-09-21 11:12:44,371 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 11:12:44,378 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 11:12:44,379 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 11:12:44,380 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 11:12:44,384 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 11:12:44,385 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:12:44" (1/1) ... [2020-09-21 11:12:44,390 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46a9d3e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:12:44, skipping insertion in model container [2020-09-21 11:12:44,390 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:12:44" (1/1) ... [2020-09-21 11:12:44,400 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 11:12:44,473 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 11:12:44,905 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:12:44,928 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 11:12:45,078 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:12:45,125 INFO L208 MainTranslator]: Completed translation [2020-09-21 11:12:45,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:12:45 WrapperNode [2020-09-21 11:12:45,127 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 11:12:45,127 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 11:12:45,127 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 11:12:45,128 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 11:12:45,141 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:12:45" (1/1) ... [2020-09-21 11:12:45,143 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:12:45" (1/1) ... [2020-09-21 11:12:45,171 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:12:45" (1/1) ... [2020-09-21 11:12:45,172 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:12:45" (1/1) ... [2020-09-21 11:12:45,212 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:12:45" (1/1) ... [2020-09-21 11:12:45,222 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:12:45" (1/1) ... [2020-09-21 11:12:45,227 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:12:45" (1/1) ... [2020-09-21 11:12:45,234 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 11:12:45,235 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 11:12:45,235 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 11:12:45,235 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 11:12:45,237 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:12:45" (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 [2020-09-21 11:12:45,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 11:12:45,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 11:12:45,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-21 11:12:45,314 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-21 11:12:45,314 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-21 11:12:45,314 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-21 11:12:45,314 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-21 11:12:45,314 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-21 11:12:45,315 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-21 11:12:45,316 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-21 11:12:45,316 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-21 11:12:45,316 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-21 11:12:45,316 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-21 11:12:45,316 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 11:12:45,317 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-21 11:12:45,318 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-21 11:12:45,318 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-21 11:12:45,318 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-21 11:12:45,318 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-21 11:12:45,318 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-21 11:12:45,319 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-21 11:12:45,319 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-21 11:12:45,319 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-21 11:12:45,319 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-21 11:12:45,320 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-21 11:12:45,320 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-21 11:12:45,321 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-21 11:12:45,321 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-21 11:12:45,321 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-21 11:12:45,321 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-21 11:12:45,321 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-21 11:12:45,321 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-21 11:12:45,321 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-21 11:12:45,322 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-21 11:12:45,322 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-21 11:12:45,322 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-21 11:12:45,322 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-21 11:12:45,322 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 11:12:45,322 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 11:12:45,323 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-21 11:12:45,323 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-21 11:12:45,323 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-21 11:12:45,323 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-21 11:12:45,323 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-21 11:12:45,323 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-21 11:12:45,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-21 11:12:45,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-21 11:12:45,324 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-21 11:12:45,324 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-21 11:12:45,324 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-21 11:12:45,324 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-21 11:12:45,324 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-21 11:12:45,325 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-21 11:12:45,325 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-21 11:12:45,325 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-21 11:12:45,325 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-21 11:12:45,326 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-21 11:12:45,326 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-21 11:12:45,326 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-21 11:12:45,326 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-21 11:12:45,326 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-21 11:12:45,326 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-21 11:12:45,327 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-21 11:12:45,327 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-21 11:12:45,327 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-21 11:12:45,327 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-21 11:12:45,327 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-21 11:12:45,327 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-21 11:12:45,328 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-21 11:12:45,328 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 11:12:45,328 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-21 11:12:45,328 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-21 11:12:45,328 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-21 11:12:45,328 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-21 11:12:45,329 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-21 11:12:45,329 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-21 11:12:45,329 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-21 11:12:45,329 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-21 11:12:45,329 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-21 11:12:45,329 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-21 11:12:45,330 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-21 11:12:45,330 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-21 11:12:45,330 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-21 11:12:45,330 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-21 11:12:45,330 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-21 11:12:45,330 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 11:12:45,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-21 11:12:45,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 11:12:46,436 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 11:12:46,437 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-21 11:12:46,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:12:46 BoogieIcfgContainer [2020-09-21 11:12:46,442 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 11:12:46,444 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 11:12:46,444 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 11:12:46,448 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 11:12:46,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 11:12:44" (1/3) ... [2020-09-21 11:12:46,449 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@148e81ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:12:46, skipping insertion in model container [2020-09-21 11:12:46,449 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:12:45" (2/3) ... [2020-09-21 11:12:46,449 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@148e81ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:12:46, skipping insertion in model container [2020-09-21 11:12:46,450 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:12:46" (3/3) ... [2020-09-21 11:12:46,452 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product33.cil.c [2020-09-21 11:12:46,464 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 11:12:46,474 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 11:12:46,497 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 11:12:46,526 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 11:12:46,526 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 11:12:46,527 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 11:12:46,527 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 11:12:46,527 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 11:12:46,527 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 11:12:46,527 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 11:12:46,527 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 11:12:46,552 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states. [2020-09-21 11:12:46,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-09-21 11:12:46,563 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:12:46,564 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:12:46,564 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:12:46,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:12:46,572 INFO L82 PathProgramCache]: Analyzing trace with hash 1120421974, now seen corresponding path program 1 times [2020-09-21 11:12:46,582 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:12:46,582 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1425756204] [2020-09-21 11:12:46,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:12:46,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:46,953 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:46,954 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:46,955 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:46,955 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:46,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-09-21 11:12:46,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:46,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-21 11:12:46,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:46,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:46,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-09-21 11:12:46,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:46,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:12:47,347 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:12:47,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:12:47,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:47,363 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:47,363 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:47,363 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:47,364 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:47,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:12:47,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:47,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:47,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:47,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:47,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:47,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:47,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:12:47,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:12:47,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:47,423 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:47,424 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:47,424 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:47,424 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:47,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:12:47,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:47,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:47,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:47,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:47,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:47,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:47,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:12:47,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:12:47,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:47,430 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:47,431 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:47,431 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:47,431 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:47,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:12:47,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:47,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:47,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:47,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:47,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:47,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:47,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:12:47,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:12:47,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:47,438 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:47,438 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:47,438 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:47,439 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:47,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:12:47,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:47,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:47,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:47,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:47,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:47,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:47,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:12:47,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:12:47,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:47,445 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:47,446 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:47,446 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:47,446 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:47,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:12:47,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:47,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:47,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:47,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:47,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:47,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:47,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:12:47,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 11:12:47,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:47,453 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:47,453 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:47,453 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:47,454 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:47,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:12:47,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:47,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:47,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:47,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:47,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:12:47,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:47,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 26 [2020-09-21 11:12:47,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-21 11:12:47,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:47,487 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:47,487 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:47,487 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:47,487 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:47,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:12:47,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:47,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:47,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:47,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:47,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:12:47,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:47,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:47,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:12:47,501 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1425756204] [2020-09-21 11:12:47,504 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:12:47,504 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-21 11:12:47,505 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184618016] [2020-09-21 11:12:47,511 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-21 11:12:47,512 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:12:47,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-21 11:12:47,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 11:12:47,533 INFO L87 Difference]: Start difference. First operand 148 states. Second operand 3 states. [2020-09-21 11:12:48,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:12:48,608 INFO L93 Difference]: Finished difference Result 249 states and 331 transitions. [2020-09-21 11:12:48,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-21 11:12:48,610 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-09-21 11:12:48,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:12:48,629 INFO L225 Difference]: With dead ends: 249 [2020-09-21 11:12:48,629 INFO L226 Difference]: Without dead ends: 135 [2020-09-21 11:12:48,636 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 11:12:48,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2020-09-21 11:12:48,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 105. [2020-09-21 11:12:48,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-09-21 11:12:48,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 123 transitions. [2020-09-21 11:12:48,733 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 123 transitions. Word has length 46 [2020-09-21 11:12:48,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:12:48,734 INFO L479 AbstractCegarLoop]: Abstraction has 105 states and 123 transitions. [2020-09-21 11:12:48,734 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-21 11:12:48,734 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 123 transitions. [2020-09-21 11:12:48,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-09-21 11:12:48,738 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:12:48,738 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:12:48,739 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 11:12:48,739 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:12:48,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:12:48,740 INFO L82 PathProgramCache]: Analyzing trace with hash 1195015831, now seen corresponding path program 1 times [2020-09-21 11:12:48,740 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:12:48,740 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [282821123] [2020-09-21 11:12:48,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:12:48,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:48,806 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:48,806 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:48,806 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:48,807 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:48,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-21 11:12:48,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:48,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 11:12:48,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:48,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:12:48,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-09-21 11:12:48,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:12:48,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:12:49,127 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:12:49,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:12:49,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:49,137 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:49,137 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:49,137 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:49,137 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:49,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:12:49,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:49,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:49,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:49,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:49,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:49,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:49,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:49,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:12:49,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:49,175 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:49,175 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:49,175 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:49,176 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:49,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:12:49,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:49,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:49,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:49,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:49,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:49,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:49,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:49,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:12:49,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:49,180 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:49,180 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:49,180 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:49,181 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:49,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:12:49,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:49,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:49,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:49,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:49,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:49,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:49,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:49,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:12:49,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:49,186 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:49,186 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:49,186 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:49,186 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:49,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:12:49,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:49,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:49,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:49,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:49,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:49,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:49,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:49,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:12:49,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:49,191 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:49,191 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:49,192 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:49,192 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:49,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:12:49,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:49,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:49,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:49,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:49,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:49,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:49,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:49,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 11:12:49,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:49,197 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:49,197 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:49,197 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:49,198 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:49,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:12:49,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:49,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:49,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:49,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:49,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:12:49,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:49,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:49,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 11:12:49,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:49,203 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:49,203 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:49,203 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:49,204 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:49,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:12:49,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:49,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:49,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:49,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:49,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:12:49,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:49,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:49,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:12:49,213 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [282821123] [2020-09-21 11:12:49,213 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:12:49,213 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 11:12:49,214 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118856987] [2020-09-21 11:12:49,216 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 11:12:49,216 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:12:49,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 11:12:49,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 11:12:49,217 INFO L87 Difference]: Start difference. First operand 105 states and 123 transitions. Second operand 4 states. [2020-09-21 11:12:49,734 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:12:50,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:12:50,420 INFO L93 Difference]: Finished difference Result 182 states and 222 transitions. [2020-09-21 11:12:50,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:12:50,421 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-09-21 11:12:50,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:12:50,424 INFO L225 Difference]: With dead ends: 182 [2020-09-21 11:12:50,424 INFO L226 Difference]: Without dead ends: 119 [2020-09-21 11:12:50,426 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:12:50,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-09-21 11:12:50,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 96. [2020-09-21 11:12:50,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-09-21 11:12:50,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 111 transitions. [2020-09-21 11:12:50,461 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 111 transitions. Word has length 47 [2020-09-21 11:12:50,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:12:50,461 INFO L479 AbstractCegarLoop]: Abstraction has 96 states and 111 transitions. [2020-09-21 11:12:50,461 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 11:12:50,461 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 111 transitions. [2020-09-21 11:12:50,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-21 11:12:50,463 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:12:50,463 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:12:50,464 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 11:12:50,464 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:12:50,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:12:50,464 INFO L82 PathProgramCache]: Analyzing trace with hash -234309885, now seen corresponding path program 1 times [2020-09-21 11:12:50,464 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:12:50,465 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [811986270] [2020-09-21 11:12:50,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:12:50,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:50,585 FATAL L256 erpolLogProxyWrapper]: Difference in size: 4 [2020-09-21 11:12:50,585 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:50,586 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:50,586 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:50,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-09-21 11:12:50,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:50,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-09-21 11:12:50,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:50,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:12:50,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:12:50,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-21 11:12:50,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:50,908 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:12:50,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:12:50,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:50,975 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:50,975 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:50,976 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:50,976 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:50,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:12:50,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:50,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-21 11:12:50,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:50,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:12:50,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:50,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:12:50,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:51,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:12:51,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:51,013 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:51,013 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:51,014 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:51,014 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:51,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:12:51,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:51,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:51,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:51,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:12:51,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:51,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:12:51,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:51,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:12:51,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:51,019 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:51,019 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:51,019 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:51,019 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:51,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:12:51,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:51,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:51,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:51,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:12:51,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:51,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:12:51,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:51,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:12:51,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:51,025 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:51,025 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:51,025 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:51,026 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:51,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:12:51,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:51,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:51,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:51,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:12:51,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:51,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:12:51,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:51,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:12:51,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:51,032 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:51,032 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:51,032 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:51,033 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:51,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:12:51,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:51,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:51,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:51,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:12:51,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:51,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:12:51,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:12:51,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 11:12:51,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:51,039 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:51,040 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:51,040 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:51,040 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:51,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:12:51,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:51,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:51,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:51,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:51,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:12:51,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:51,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:51,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-21 11:12:51,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:51,045 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:51,045 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:51,045 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:51,045 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:51,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:12:51,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:51,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:51,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:51,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:51,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:12:51,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:51,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:51,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:12:51,055 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [811986270] [2020-09-21 11:12:51,055 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:12:51,055 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 11:12:51,055 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989191586] [2020-09-21 11:12:51,056 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 11:12:51,056 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:12:51,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 11:12:51,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 11:12:51,057 INFO L87 Difference]: Start difference. First operand 96 states and 111 transitions. Second operand 4 states. [2020-09-21 11:12:51,426 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:12:52,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:12:52,106 INFO L93 Difference]: Finished difference Result 191 states and 236 transitions. [2020-09-21 11:12:52,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:12:52,106 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2020-09-21 11:12:52,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:12:52,109 INFO L225 Difference]: With dead ends: 191 [2020-09-21 11:12:52,109 INFO L226 Difference]: Without dead ends: 119 [2020-09-21 11:12:52,110 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:12:52,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-09-21 11:12:52,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 96. [2020-09-21 11:12:52,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-09-21 11:12:52,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 110 transitions. [2020-09-21 11:12:52,141 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 110 transitions. Word has length 51 [2020-09-21 11:12:52,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:12:52,141 INFO L479 AbstractCegarLoop]: Abstraction has 96 states and 110 transitions. [2020-09-21 11:12:52,141 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 11:12:52,142 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 110 transitions. [2020-09-21 11:12:52,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-09-21 11:12:52,144 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:12:52,144 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:12:52,144 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 11:12:52,145 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:12:52,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:12:52,145 INFO L82 PathProgramCache]: Analyzing trace with hash -962632878, now seen corresponding path program 1 times [2020-09-21 11:12:52,145 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:12:52,145 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1110269509] [2020-09-21 11:12:52,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:12:52,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:52,559 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:52,559 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:52,560 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:52,560 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:52,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-21 11:12:52,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:52,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 370 [2020-09-21 11:12:52,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:52,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-21 11:12:52,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:12:52,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-21 11:12:52,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:52,950 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:12:52,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:12:52,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:53,049 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:53,049 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:53,049 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:53,050 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:53,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:12:53,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:53,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-09-21 11:12:53,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:53,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:12:53,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:53,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:12:53,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:12:53,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:12:53,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:53,100 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:53,101 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:53,101 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:53,101 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:53,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:12:53,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:53,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:12:53,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:53,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:12:53,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:53,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:12:53,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:12:53,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:12:53,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:53,112 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:53,113 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:53,113 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:53,113 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:53,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:12:53,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:53,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:12:53,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:53,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:12:53,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:53,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:12:53,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:12:53,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:12:53,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:53,121 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:53,122 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:53,122 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:53,122 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:53,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:12:53,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:53,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:12:53,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:53,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:12:53,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:53,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:12:53,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:12:53,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:12:53,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:53,130 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:53,130 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:53,130 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:53,131 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:53,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:12:53,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:53,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:12:53,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:53,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:12:53,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:53,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:12:53,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:12:53,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-09-21 11:12:53,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:53,154 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:53,154 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:53,155 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:53,155 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:53,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 11:12:53,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:53,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:12:53,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:53,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:12:53,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:12:53,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-21 11:12:53,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:53,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:12:53,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:53,249 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:53,251 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:53,252 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:53,252 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:53,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:12:53,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:53,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:12:53,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:53,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:12:53,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:53,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:12:53,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:12:53,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-21 11:12:53,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:53,263 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:53,263 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:53,263 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:53,264 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:53,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:12:53,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:53,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:53,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:53,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:53,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:12:53,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:53,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:12:53,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-09-21 11:12:53,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:53,272 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:53,272 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:53,272 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:53,273 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:53,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:12:53,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:53,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:53,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:53,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:53,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:12:53,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:53,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:12:53,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:12:53,292 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1110269509] [2020-09-21 11:12:53,293 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:12:53,293 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-21 11:12:53,294 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037779620] [2020-09-21 11:12:53,294 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:12:53,295 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:12:53,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:12:53,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:12:53,296 INFO L87 Difference]: Start difference. First operand 96 states and 110 transitions. Second operand 7 states. [2020-09-21 11:12:53,817 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:12:55,132 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 11:12:55,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:12:55,689 INFO L93 Difference]: Finished difference Result 274 states and 340 transitions. [2020-09-21 11:12:55,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 11:12:55,689 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 59 [2020-09-21 11:12:55,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:12:55,693 INFO L225 Difference]: With dead ends: 274 [2020-09-21 11:12:55,693 INFO L226 Difference]: Without dead ends: 202 [2020-09-21 11:12:55,695 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-09-21 11:12:55,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-09-21 11:12:55,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 161. [2020-09-21 11:12:55,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2020-09-21 11:12:55,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 185 transitions. [2020-09-21 11:12:55,738 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 185 transitions. Word has length 59 [2020-09-21 11:12:55,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:12:55,739 INFO L479 AbstractCegarLoop]: Abstraction has 161 states and 185 transitions. [2020-09-21 11:12:55,739 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:12:55,739 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 185 transitions. [2020-09-21 11:12:55,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-09-21 11:12:55,741 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:12:55,742 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:12:55,742 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 11:12:55,742 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:12:55,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:12:55,742 INFO L82 PathProgramCache]: Analyzing trace with hash 869233952, now seen corresponding path program 1 times [2020-09-21 11:12:55,743 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:12:55,743 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1360917819] [2020-09-21 11:12:55,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:12:55,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:56,200 FATAL L256 erpolLogProxyWrapper]: Difference in size: 4 [2020-09-21 11:12:56,200 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:56,201 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:56,201 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:56,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-21 11:12:56,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:56,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 411 [2020-09-21 11:12:56,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:56,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:12:56,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:12:56,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-09-21 11:12:56,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:12:56,627 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:12:56,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:12:56,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:56,724 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:56,724 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:56,725 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:56,725 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:56,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:12:56,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:56,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-21 11:12:56,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:56,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:12:56,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:56,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:12:56,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:12:56,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:12:56,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:56,773 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:56,773 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:56,773 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:56,774 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:56,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:12:56,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:56,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:12:56,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:56,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:12:56,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:56,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:12:56,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:12:56,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:12:56,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:56,788 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:56,789 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:56,789 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:56,789 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:56,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:12:56,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:56,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 11:12:56,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:56,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:12:56,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:56,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:12:56,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:12:56,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:12:56,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:56,796 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:56,797 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:56,797 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:56,798 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:56,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:12:56,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:56,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:12:56,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:56,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:12:56,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:56,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:12:56,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:12:56,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:12:56,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:56,806 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:56,807 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:56,807 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:56,807 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:56,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:12:56,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:56,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:12:56,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:56,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:12:56,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:56,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:12:56,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:12:56,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-09-21 11:12:56,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:56,833 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:56,834 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:56,834 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:56,834 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:56,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-21 11:12:56,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:56,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:12:56,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:56,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:12:56,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:56,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-21 11:12:56,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:12:56,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:12:56,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:56,848 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:56,848 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:56,848 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:56,849 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:56,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:12:56,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:56,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:56,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:56,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:56,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:56,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:56,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:12:56,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:12:56,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:56,857 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:56,857 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:56,858 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:56,858 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:56,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:12:56,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:56,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:56,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:56,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:56,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:56,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:56,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:12:56,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:12:56,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:56,866 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:56,867 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:56,867 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:56,867 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:56,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:12:56,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:56,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:12:56,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:56,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:56,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:56,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:56,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:12:56,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-09-21 11:12:56,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:56,882 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:56,882 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:56,883 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:56,883 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:56,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:12:56,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:56,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 11:12:56,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:56,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:12:56,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:56,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:12:56,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:12:56,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-09-21 11:12:56,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:56,907 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:56,907 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:56,908 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:56,908 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:56,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:12:56,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:56,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:56,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:56,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:56,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:12:56,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:56,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:12:56,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:12:56,933 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1360917819] [2020-09-21 11:12:56,933 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:12:56,933 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-21 11:12:56,934 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195607605] [2020-09-21 11:12:56,936 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:12:56,936 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:12:56,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:12:56,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:12:56,938 INFO L87 Difference]: Start difference. First operand 161 states and 185 transitions. Second operand 8 states. [2020-09-21 11:12:57,594 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:12:59,139 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:12:59,435 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:12:59,744 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:00,047 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:00,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:13:00,726 INFO L93 Difference]: Finished difference Result 434 states and 554 transitions. [2020-09-21 11:13:00,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-21 11:13:00,727 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 73 [2020-09-21 11:13:00,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:13:00,732 INFO L225 Difference]: With dead ends: 434 [2020-09-21 11:13:00,732 INFO L226 Difference]: Without dead ends: 297 [2020-09-21 11:13:00,734 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-09-21 11:13:00,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2020-09-21 11:13:00,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 261. [2020-09-21 11:13:00,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261 states. [2020-09-21 11:13:00,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 306 transitions. [2020-09-21 11:13:00,815 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 306 transitions. Word has length 73 [2020-09-21 11:13:00,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:13:00,815 INFO L479 AbstractCegarLoop]: Abstraction has 261 states and 306 transitions. [2020-09-21 11:13:00,815 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:13:00,815 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 306 transitions. [2020-09-21 11:13:00,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-09-21 11:13:00,817 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:00,818 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:13:00,818 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 11:13:00,818 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:00,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:00,818 INFO L82 PathProgramCache]: Analyzing trace with hash 256269414, now seen corresponding path program 1 times [2020-09-21 11:13:00,819 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:00,819 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1030494459] [2020-09-21 11:13:00,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:00,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:01,294 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:01,295 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:01,295 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:01,295 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:01,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-09-21 11:13:01,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:01,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 427 [2020-09-21 11:13:01,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:01,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:13:01,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:01,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-09-21 11:13:01,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:01,598 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:13:01,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:13:01,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:01,664 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:01,664 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:01,664 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:01,664 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:01,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:01,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:01,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-21 11:13:01,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:01,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:01,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:01,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:13:01,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:01,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:13:01,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:01,699 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:01,699 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:01,700 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:01,700 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:01,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:01,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:01,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:01,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:01,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:01,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:01,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:01,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:01,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:13:01,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:01,704 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:01,705 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:01,705 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:01,705 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:01,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:01,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:01,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:01,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:01,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:01,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:01,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:01,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:01,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:01,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:01,710 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:01,710 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:01,711 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:01,711 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:01,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:01,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:01,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:01,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:01,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:01,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:01,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:01,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:01,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:13:01,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:01,716 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:01,716 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:01,716 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:01,717 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:01,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:01,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:01,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:01,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:01,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:01,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:01,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:01,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:01,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-21 11:13:01,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:01,734 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:01,735 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:01,735 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:01,735 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:01,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:01,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:01,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:13:01,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:01,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:13:01,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:13:01,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 11:13:01,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:01,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 11:13:01,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:01,770 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:01,771 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:01,771 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:01,771 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:01,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-21 11:13:01,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:01,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:01,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:01,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:01,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 11:13:01,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-21 11:13:01,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:01,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:01,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:01,793 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:01,793 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:01,793 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:01,793 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:01,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:13:01,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:01,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:01,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:01,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:01,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:01,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:13:01,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:01,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:01,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:01,801 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:01,801 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:01,802 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:01,802 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:01,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:13:01,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:01,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:01,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:01,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:01,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:01,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:13:01,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:01,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:13:01,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:01,808 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:01,808 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:01,808 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:01,809 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:01,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:01,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:01,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:01,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:01,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:01,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:01,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:01,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:01,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-09-21 11:13:01,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:01,813 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:01,814 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:01,814 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:01,814 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:01,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:01,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:01,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:01,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:01,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:01,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:01,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:01,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:01,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-09-21 11:13:01,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:01,818 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:01,819 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:01,819 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:01,819 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:01,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:01,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:01,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:13:01,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:01,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:01,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:01,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:01,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:01,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:13:01,832 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1030494459] [2020-09-21 11:13:01,832 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:13:01,833 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-21 11:13:01,833 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417473602] [2020-09-21 11:13:01,833 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 11:13:01,834 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:13:01,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 11:13:01,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-21 11:13:01,834 INFO L87 Difference]: Start difference. First operand 261 states and 306 transitions. Second operand 9 states. [2020-09-21 11:13:02,262 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:02,790 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:04,240 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:05,412 WARN L193 SmtUtils]: Spent 582.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-09-21 11:13:06,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:13:06,406 INFO L93 Difference]: Finished difference Result 656 states and 831 transitions. [2020-09-21 11:13:06,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-21 11:13:06,406 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 77 [2020-09-21 11:13:06,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:13:06,412 INFO L225 Difference]: With dead ends: 656 [2020-09-21 11:13:06,412 INFO L226 Difference]: Without dead ends: 508 [2020-09-21 11:13:06,414 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2020-09-21 11:13:06,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2020-09-21 11:13:06,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 463. [2020-09-21 11:13:06,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 463 states. [2020-09-21 11:13:06,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 559 transitions. [2020-09-21 11:13:06,521 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 559 transitions. Word has length 77 [2020-09-21 11:13:06,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:13:06,521 INFO L479 AbstractCegarLoop]: Abstraction has 463 states and 559 transitions. [2020-09-21 11:13:06,522 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 11:13:06,522 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 559 transitions. [2020-09-21 11:13:06,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-09-21 11:13:06,523 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:06,523 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:13:06,524 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 11:13:06,524 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:06,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:06,524 INFO L82 PathProgramCache]: Analyzing trace with hash 607069351, now seen corresponding path program 1 times [2020-09-21 11:13:06,525 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:06,525 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [178752087] [2020-09-21 11:13:06,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:06,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:06,607 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:06,607 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:06,607 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:06,607 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:06,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-09-21 11:13:06,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:06,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:13:06,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:06,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:13:06,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 75 [2020-09-21 11:13:06,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:06,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:06,880 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:13:06,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:13:06,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:06,888 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:06,889 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:06,889 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:06,889 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:06,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:06,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:06,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:06,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:06,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:06,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:06,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:06,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:06,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:13:06,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:06,925 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:06,925 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:06,925 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:06,926 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:06,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:06,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:06,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:06,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:06,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:06,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:06,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:06,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:06,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:13:06,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:06,931 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:06,931 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:06,931 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:06,931 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:06,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:06,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:06,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:06,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:06,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:06,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:06,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:06,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:06,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:06,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:06,936 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:06,936 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:06,936 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:06,936 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:06,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:06,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:06,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:06,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:06,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:06,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:06,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:06,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:06,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:13:06,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:06,941 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:06,941 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:06,941 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:06,941 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:06,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:06,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:06,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:06,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:06,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:06,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:06,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:06,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:06,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-21 11:13:06,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:06,955 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:06,956 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:06,956 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:06,956 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:06,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:06,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:06,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:06,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:06,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:06,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:06,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:06,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:06,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 11:13:06,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:06,978 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:06,978 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:06,978 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:06,979 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:06,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-21 11:13:06,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:06,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:13:06,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:06,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:13:06,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 11:13:06,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:06,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:06,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:06,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:06,990 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:06,991 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:06,991 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:06,991 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:06,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:13:06,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:06,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:13:06,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:06,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:13:06,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 11:13:06,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:06,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:07,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:07,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:07,027 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:07,028 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:07,028 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:07,028 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:07,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:13:07,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:07,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:07,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:07,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 11:13:07,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:07,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:07,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:07,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:13:07,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:07,043 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:07,043 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:07,043 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:07,043 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:07,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:07,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:07,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:07,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:07,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:07,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-21 11:13:07,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:07,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:07,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-09-21 11:13:07,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:07,048 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:07,048 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:07,048 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:07,049 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:07,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:07,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:07,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:07,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:07,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:07,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:07,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:07,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:07,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-09-21 11:13:07,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:07,054 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:07,054 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:07,054 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:07,055 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:07,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:07,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:07,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:07,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:07,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:07,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:07,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:07,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:07,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:13:07,070 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [178752087] [2020-09-21 11:13:07,070 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:13:07,070 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-21 11:13:07,070 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420499465] [2020-09-21 11:13:07,071 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:13:07,071 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:13:07,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:13:07,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:13:07,072 INFO L87 Difference]: Start difference. First operand 463 states and 559 transitions. Second operand 8 states. [2020-09-21 11:13:07,985 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:13:08,277 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:13:08,594 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:13:09,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:13:09,498 INFO L93 Difference]: Finished difference Result 851 states and 1067 transitions. [2020-09-21 11:13:09,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 11:13:09,499 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 77 [2020-09-21 11:13:09,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:13:09,503 INFO L225 Difference]: With dead ends: 851 [2020-09-21 11:13:09,503 INFO L226 Difference]: Without dead ends: 505 [2020-09-21 11:13:09,505 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-09-21 11:13:09,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2020-09-21 11:13:09,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 463. [2020-09-21 11:13:09,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 463 states. [2020-09-21 11:13:09,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 558 transitions. [2020-09-21 11:13:09,601 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 558 transitions. Word has length 77 [2020-09-21 11:13:09,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:13:09,602 INFO L479 AbstractCegarLoop]: Abstraction has 463 states and 558 transitions. [2020-09-21 11:13:09,602 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:13:09,602 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 558 transitions. [2020-09-21 11:13:09,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-09-21 11:13:09,603 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:09,604 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:13:09,604 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-21 11:13:09,604 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:09,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:09,605 INFO L82 PathProgramCache]: Analyzing trace with hash -1764669911, now seen corresponding path program 1 times [2020-09-21 11:13:09,605 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:09,605 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [919013085] [2020-09-21 11:13:09,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:09,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:09,658 FATAL L256 erpolLogProxyWrapper]: Difference in size: 4 [2020-09-21 11:13:09,658 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -53 [2020-09-21 11:13:09,658 FATAL L256 erpolLogProxyWrapper]: Difference in width: 53 [2020-09-21 11:13:09,658 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:09,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-09-21 11:13:09,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:09,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 11:13:09,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:09,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:13:09,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-21 11:13:09,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:13:09,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:09,926 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:13:09,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:13:09,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:09,936 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:09,936 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:09,936 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:09,937 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:09,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:09,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:09,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:09,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:09,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:09,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:09,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:09,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:09,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:13:09,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:09,970 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:09,970 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:09,970 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:09,970 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:09,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:09,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:09,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:09,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:09,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:09,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:09,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:09,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:09,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:13:09,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:09,976 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:09,976 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:09,976 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:09,976 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:09,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:09,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:09,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:09,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:09,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:09,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:09,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:09,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:09,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:09,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:09,980 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:09,980 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:09,980 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:09,980 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:09,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:09,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:09,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:13:09,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:09,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:09,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:09,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:09,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:09,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:13:09,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:09,985 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:09,985 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:09,985 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:09,985 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:09,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:09,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:09,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:13:09,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:09,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:09,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:09,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:09,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:09,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-21 11:13:09,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:09,995 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:09,995 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:09,995 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:09,995 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:09,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:09,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:09,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:09,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:09,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:09,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:09,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:09,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:10,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 11:13:10,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:10,015 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:10,016 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:10,016 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:10,016 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:10,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-21 11:13:10,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:10,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:13:10,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:10,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:13:10,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-21 11:13:10,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:13:10,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:10,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:10,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:10,052 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:10,052 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:10,052 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:10,053 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:10,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:13:10,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:10,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:13:10,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:10,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:13:10,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:10,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-21 11:13:10,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:10,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:10,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:10,078 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:10,078 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:10,078 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:10,079 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:10,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:13:10,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:10,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:10,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:10,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:10,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:10,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:10,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:10,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:13:10,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:10,083 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:10,083 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:10,084 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:10,084 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:10,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:10,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:10,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:10,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:10,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:10,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-21 11:13:10,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:10,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:10,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-09-21 11:13:10,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:10,088 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:10,088 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:10,088 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:10,089 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:10,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:10,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:10,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:13:10,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:10,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:10,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:10,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:10,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:10,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-09-21 11:13:10,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:10,093 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:10,093 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:10,093 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:10,093 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:10,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:10,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:10,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:10,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:10,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:10,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:10,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:10,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:10,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:13:10,105 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [919013085] [2020-09-21 11:13:10,106 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:13:10,106 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-21 11:13:10,106 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306929413] [2020-09-21 11:13:10,107 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 11:13:10,107 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:13:10,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 11:13:10,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-21 11:13:10,107 INFO L87 Difference]: Start difference. First operand 463 states and 558 transitions. Second operand 9 states. [2020-09-21 11:13:11,109 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:13:11,400 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 11:13:11,717 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:13:12,011 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:13:12,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:13:12,783 INFO L93 Difference]: Finished difference Result 918 states and 1146 transitions. [2020-09-21 11:13:12,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-21 11:13:12,787 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 77 [2020-09-21 11:13:12,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:13:12,796 INFO L225 Difference]: With dead ends: 918 [2020-09-21 11:13:12,796 INFO L226 Difference]: Without dead ends: 479 [2020-09-21 11:13:12,798 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2020-09-21 11:13:12,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2020-09-21 11:13:12,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 442. [2020-09-21 11:13:12,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 442 states. [2020-09-21 11:13:12,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 530 transitions. [2020-09-21 11:13:12,985 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 530 transitions. Word has length 77 [2020-09-21 11:13:12,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:13:13,006 INFO L479 AbstractCegarLoop]: Abstraction has 442 states and 530 transitions. [2020-09-21 11:13:13,006 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 11:13:13,006 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 530 transitions. [2020-09-21 11:13:13,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-09-21 11:13:13,007 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:13,008 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:13:13,008 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-21 11:13:13,008 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:13,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:13,008 INFO L82 PathProgramCache]: Analyzing trace with hash 645350210, now seen corresponding path program 1 times [2020-09-21 11:13:13,009 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:13,009 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [21546352] [2020-09-21 11:13:13,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:13,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:13,060 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:13,060 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:13,061 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:13,061 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:13,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-09-21 11:13:13,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:13,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 11:13:13,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:13,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:13:13,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 75 [2020-09-21 11:13:13,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-21 11:13:13,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:13,318 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:13:13,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:13:13,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:13,326 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:13,326 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:13,326 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:13,327 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:13,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:13,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:13,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:13,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:13,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:13,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:13,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:13,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:13,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:13:13,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:13,352 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:13,353 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:13,353 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:13,353 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:13,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:13,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:13,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:13:13,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:13,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:13,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:13,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:13,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:13,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:13:13,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:13,356 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:13,357 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:13,357 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:13,357 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:13,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:13,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:13,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:13:13,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:13,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:13,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:13,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:13,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:13,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:13,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:13,360 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:13,361 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:13,361 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:13,361 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:13,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:13,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:13,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:13:13,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:13,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:13,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:13,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:13,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:13,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:13:13,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:13,365 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:13,365 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:13,365 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:13,365 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:13,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:13,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:13,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:13:13,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:13,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:13,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:13,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:13,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:13,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-21 11:13:13,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:13,378 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:13,378 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:13,378 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:13,378 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:13,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:13,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:13,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:13,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:13,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:13,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:13,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:13,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:13,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 11:13:13,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:13,395 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:13,395 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:13,395 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:13,396 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:13,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:13:13,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:13,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:13,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:13,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:13,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:13,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-21 11:13:13,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:13,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:13,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:13,408 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:13,408 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:13,408 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:13,408 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:13,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:13:13,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:13,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:13,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:13,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:13,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:13,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:13:13,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:13,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:13,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:13,419 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:13,419 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:13,419 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:13,420 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:13,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:13:13,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:13,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:13,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:13,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:13,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:13,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:13:13,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:13,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:13:13,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:13,428 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:13,428 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:13,428 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:13,428 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:13,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:13,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:13,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:13,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:13,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:13,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:13,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:13,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:13,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-21 11:13:13,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:13,435 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:13,436 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:13,436 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:13,436 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:13,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:13,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:13,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:13:13,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:13,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:13:13,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:13,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:13,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:13,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-09-21 11:13:13,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:13,451 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:13,452 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:13,452 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:13,452 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:13,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:13,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:13,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:13,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:13,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:13,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:13,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:13,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:13,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:13:13,464 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [21546352] [2020-09-21 11:13:13,465 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:13:13,465 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-21 11:13:13,465 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910180555] [2020-09-21 11:13:13,465 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 11:13:13,466 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:13:13,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 11:13:13,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-21 11:13:13,466 INFO L87 Difference]: Start difference. First operand 442 states and 530 transitions. Second operand 9 states. [2020-09-21 11:13:14,376 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:14,964 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:15,354 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:15,700 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:16,013 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:16,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:13:16,932 INFO L93 Difference]: Finished difference Result 798 states and 990 transitions. [2020-09-21 11:13:16,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-21 11:13:16,933 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 78 [2020-09-21 11:13:16,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:13:16,937 INFO L225 Difference]: With dead ends: 798 [2020-09-21 11:13:16,937 INFO L226 Difference]: Without dead ends: 489 [2020-09-21 11:13:16,939 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 25 SyntacticMatches, 3 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=83, Invalid=189, Unknown=0, NotChecked=0, Total=272 [2020-09-21 11:13:16,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2020-09-21 11:13:17,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 436. [2020-09-21 11:13:17,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 436 states. [2020-09-21 11:13:17,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 522 transitions. [2020-09-21 11:13:17,024 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 522 transitions. Word has length 78 [2020-09-21 11:13:17,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:13:17,024 INFO L479 AbstractCegarLoop]: Abstraction has 436 states and 522 transitions. [2020-09-21 11:13:17,024 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 11:13:17,024 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 522 transitions. [2020-09-21 11:13:17,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-09-21 11:13:17,026 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:17,027 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:13:17,027 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-21 11:13:17,027 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:17,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:17,028 INFO L82 PathProgramCache]: Analyzing trace with hash -1648815792, now seen corresponding path program 1 times [2020-09-21 11:13:17,028 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:17,028 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1369927688] [2020-09-21 11:13:17,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:17,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:17,078 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:17,079 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:17,079 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:17,079 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:17,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-09-21 11:13:17,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:17,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:13:17,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:17,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:13:17,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-09-21 11:13:17,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:13:17,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:17,328 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:13:17,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:13:17,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:17,337 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:17,337 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:17,337 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:17,338 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:17,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:17,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:17,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:17,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:17,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:17,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:17,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:17,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:17,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:13:17,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:17,367 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:17,367 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:17,367 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:17,367 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:17,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:17,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:17,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:17,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:17,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:17,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:17,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:17,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:17,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:13:17,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:17,371 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:17,372 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:17,372 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:17,372 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:17,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:17,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:17,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:17,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:17,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:17,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:17,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:17,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:17,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:17,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:17,376 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:17,376 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:17,377 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:17,377 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:17,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:17,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:17,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:17,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:17,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:17,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:17,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:17,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:17,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:13:17,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:17,384 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:17,384 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:17,385 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:17,385 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:17,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:17,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:17,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:13:17,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:17,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:17,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:17,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:17,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:17,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 11:13:17,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:17,409 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:17,410 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:17,410 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:17,410 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:17,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-21 11:13:17,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:17,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 11:13:17,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:17,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:13:17,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-21 11:13:17,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:13:17,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:17,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:17,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:17,467 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:17,468 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:17,468 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:17,468 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:17,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:13:17,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:17,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-21 11:13:17,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:17,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:13:17,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-21 11:13:17,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:13:17,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:17,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:17,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:17,522 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:17,522 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:17,522 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:17,522 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:17,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:13:17,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:17,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:13:17,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:17,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:13:17,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:17,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-21 11:13:17,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:17,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:17,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:17,565 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:17,565 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:17,566 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:17,566 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:17,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:13:17,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:17,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:17,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:17,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:17,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:17,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:17,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:17,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:13:17,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:17,579 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:17,579 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:17,580 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:17,580 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:17,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:17,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:17,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:17,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:17,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:17,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:17,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:17,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:17,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-21 11:13:17,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:17,588 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:17,589 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:17,589 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:17,590 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:17,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 11:13:17,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:17,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:17,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:17,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:17,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-21 11:13:17,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:17,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:17,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:17,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:17,596 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:17,596 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:17,596 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:17,596 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:17,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:17,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:17,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:17,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:17,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:17,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:17,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:17,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:17,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-09-21 11:13:17,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:17,626 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:17,626 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:17,627 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:17,627 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:17,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:17,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:17,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:17,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:17,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:17,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:17,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:17,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:17,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-21 11:13:17,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:17,634 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:17,634 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:17,634 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:17,635 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:17,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 11:13:17,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:17,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:17,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:17,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:17,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-21 11:13:17,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:17,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:17,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:17,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:17,640 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:17,640 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:17,641 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:17,641 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:17,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:17,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:17,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:17,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:17,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:17,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:17,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:17,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:17,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-09-21 11:13:17,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:17,647 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:17,648 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:17,648 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:17,648 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:17,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:17,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:17,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:17,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:17,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:17,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:17,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:17,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:17,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-09-21 11:13:17,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:17,652 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:17,653 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:17,653 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:17,653 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:17,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:17,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:17,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:17,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:17,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:17,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:17,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:17,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:17,694 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-21 11:13:17,695 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1369927688] [2020-09-21 11:13:17,695 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:13:17,695 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-21 11:13:17,696 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162939247] [2020-09-21 11:13:17,696 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-21 11:13:17,697 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:13:17,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-21 11:13:17,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-09-21 11:13:17,698 INFO L87 Difference]: Start difference. First operand 436 states and 522 transitions. Second operand 10 states. [2020-09-21 11:13:19,203 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:19,514 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 11:13:19,826 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:20,143 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:21,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:13:21,051 INFO L93 Difference]: Finished difference Result 879 states and 1083 transitions. [2020-09-21 11:13:21,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-21 11:13:21,052 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 109 [2020-09-21 11:13:21,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:13:21,056 INFO L225 Difference]: With dead ends: 879 [2020-09-21 11:13:21,056 INFO L226 Difference]: Without dead ends: 467 [2020-09-21 11:13:21,058 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-09-21 11:13:21,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2020-09-21 11:13:21,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 436. [2020-09-21 11:13:21,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 436 states. [2020-09-21 11:13:21,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 520 transitions. [2020-09-21 11:13:21,147 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 520 transitions. Word has length 109 [2020-09-21 11:13:21,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:13:21,148 INFO L479 AbstractCegarLoop]: Abstraction has 436 states and 520 transitions. [2020-09-21 11:13:21,149 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-21 11:13:21,149 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 520 transitions. [2020-09-21 11:13:21,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-09-21 11:13:21,150 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:21,151 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:13:21,151 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-21 11:13:21,151 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:21,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:21,151 INFO L82 PathProgramCache]: Analyzing trace with hash -2066212398, now seen corresponding path program 1 times [2020-09-21 11:13:21,152 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:21,152 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [340058137] [2020-09-21 11:13:21,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:21,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:21,207 FATAL L256 erpolLogProxyWrapper]: Difference in size: 4 [2020-09-21 11:13:21,207 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -43 [2020-09-21 11:13:21,207 FATAL L256 erpolLogProxyWrapper]: Difference in width: 43 [2020-09-21 11:13:21,207 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:21,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-09-21 11:13:21,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:21,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-21 11:13:21,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:21,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:13:21,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-09-21 11:13:21,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:21,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:21,508 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:13:21,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:13:21,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:21,525 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:21,526 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:21,526 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:21,526 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:21,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:21,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:21,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:21,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:21,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:21,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:21,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:21,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:21,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:13:21,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:21,557 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:21,557 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:21,558 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:21,558 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:21,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:21,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:21,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:21,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:21,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:21,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:21,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:21,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:21,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:13:21,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:21,563 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:21,563 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:21,564 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:21,564 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:21,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:21,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:21,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:21,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:21,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:21,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:21,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:21,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:21,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:21,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:21,570 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:21,570 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:21,570 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:21,571 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:21,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:21,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:21,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:21,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:21,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:21,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:21,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:21,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:21,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:13:21,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:21,577 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:21,577 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:21,578 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:21,578 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:21,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:21,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:21,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:21,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:21,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:21,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:21,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:21,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:21,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 11:13:21,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:21,612 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:21,612 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:21,613 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:21,613 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:21,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-21 11:13:21,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:21,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 11:13:21,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:21,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:13:21,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-21 11:13:21,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:21,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:21,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:21,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:21,642 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:21,642 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:21,642 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:21,643 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:21,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:13:21,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:21,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:13:21,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:21,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:13:21,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 11:13:21,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:21,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:21,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:21,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:21,661 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:21,662 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:21,662 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:21,663 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:21,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:13:21,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:21,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 11:13:21,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:21,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:13:21,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 11:13:21,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:21,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:21,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:21,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:21,708 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:21,708 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:21,708 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:21,709 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:21,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:13:21,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:21,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:13:21,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:21,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 11:13:21,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:21,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:21,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:21,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:13:21,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:21,732 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:21,733 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:21,733 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:21,733 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:21,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:21,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:21,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:21,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:21,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:21,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:21,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:21,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:21,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-21 11:13:21,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:21,745 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:21,745 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:21,745 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:21,746 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:21,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 11:13:21,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:21,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:21,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:21,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:21,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-21 11:13:21,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:21,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:21,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:21,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:21,756 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:21,756 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:21,757 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:21,757 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:21,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:21,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:21,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:21,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:21,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:21,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:21,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:21,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:21,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-09-21 11:13:21,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:21,782 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:21,783 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:21,783 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:21,783 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:21,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:21,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:21,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:21,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:21,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:21,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:21,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:21,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:21,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-21 11:13:21,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:21,789 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:21,790 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:21,790 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:21,790 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:21,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 11:13:21,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:21,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:21,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:21,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:21,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-21 11:13:21,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:21,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:21,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:21,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:21,797 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:21,797 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:21,798 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:21,798 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:21,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:21,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:21,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:21,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:21,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:21,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:21,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:21,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:21,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-09-21 11:13:21,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:21,803 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:21,804 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:21,804 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:21,804 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:21,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:21,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:21,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:21,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:21,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:21,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:21,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:21,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:21,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-09-21 11:13:21,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:21,810 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:21,810 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:21,810 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:21,811 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:21,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:21,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:21,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:13:21,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:21,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:21,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:21,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:21,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:21,844 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-21 11:13:21,845 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [340058137] [2020-09-21 11:13:21,845 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:13:21,845 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-21 11:13:21,846 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402517294] [2020-09-21 11:13:21,846 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 11:13:21,847 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:13:21,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 11:13:21,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-09-21 11:13:21,848 INFO L87 Difference]: Start difference. First operand 436 states and 520 transitions. Second operand 9 states. [2020-09-21 11:13:22,884 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:13:23,126 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:23,412 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:24,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:13:24,063 INFO L93 Difference]: Finished difference Result 787 states and 957 transitions. [2020-09-21 11:13:24,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 11:13:24,064 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 109 [2020-09-21 11:13:24,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:13:24,068 INFO L225 Difference]: With dead ends: 787 [2020-09-21 11:13:24,068 INFO L226 Difference]: Without dead ends: 375 [2020-09-21 11:13:24,071 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-09-21 11:13:24,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2020-09-21 11:13:24,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 363. [2020-09-21 11:13:24,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 363 states. [2020-09-21 11:13:24,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 428 transitions. [2020-09-21 11:13:24,160 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 428 transitions. Word has length 109 [2020-09-21 11:13:24,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:13:24,160 INFO L479 AbstractCegarLoop]: Abstraction has 363 states and 428 transitions. [2020-09-21 11:13:24,160 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 11:13:24,161 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 428 transitions. [2020-09-21 11:13:24,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-09-21 11:13:24,162 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:24,162 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:13:24,162 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-21 11:13:24,162 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:24,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:24,163 INFO L82 PathProgramCache]: Analyzing trace with hash 147640793, now seen corresponding path program 1 times [2020-09-21 11:13:24,163 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:24,164 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [340526295] [2020-09-21 11:13:24,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:24,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:24,238 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:24,239 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:24,239 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:24,239 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:24,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-09-21 11:13:24,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:24,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-21 11:13:24,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:24,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-21 11:13:24,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 75 [2020-09-21 11:13:24,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-21 11:13:24,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:24,561 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:13:24,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:13:24,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:24,568 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:24,569 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:24,569 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:24,570 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:24,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:24,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:24,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:24,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:24,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:24,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:24,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:24,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:24,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:13:24,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:24,598 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:24,598 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:24,599 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:24,599 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:24,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:24,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:24,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:24,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:24,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:24,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:24,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:24,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:24,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:13:24,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:24,603 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:24,603 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:24,604 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:24,604 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:24,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:24,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:24,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:13:24,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:24,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:24,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:24,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:24,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:24,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:24,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:24,607 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:24,607 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:24,608 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:24,608 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:24,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:24,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:24,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:13:24,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:24,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:24,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:24,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:24,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:24,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:13:24,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:24,613 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:24,613 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:24,614 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:24,614 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:24,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:24,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:24,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:24,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:24,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:24,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:24,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:24,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:24,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-21 11:13:24,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:24,629 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:24,629 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:24,630 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:24,630 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:24,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:24,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:24,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:24,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:24,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:24,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:24,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:24,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:24,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-21 11:13:24,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:24,655 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:24,656 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:24,656 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:24,656 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:24,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-21 11:13:24,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:24,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:24,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:24,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:24,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:24,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-21 11:13:24,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:24,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:24,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:24,681 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:24,681 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:24,681 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:24,682 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:24,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:13:24,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:24,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:24,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:24,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:24,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:24,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-21 11:13:24,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:24,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:24,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:24,695 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:24,695 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:24,695 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:24,695 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:24,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:13:24,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:24,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:24,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:24,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:24,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:24,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:13:24,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:24,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:24,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:24,705 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:24,705 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:24,705 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:24,706 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:24,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:13:24,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:24,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:24,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:24,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:24,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:24,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:13:24,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:24,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:13:24,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:24,714 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:24,714 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:24,715 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:24,715 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:24,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:24,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:24,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:24,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:24,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:24,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:24,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:24,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:24,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-21 11:13:24,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:24,726 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:24,726 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:24,726 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:24,727 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:24,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 11:13:24,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:24,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:24,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:24,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:24,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:24,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-21 11:13:24,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:24,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:24,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:24,736 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:24,736 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:24,736 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:24,737 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:24,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:24,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:24,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:24,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:24,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:24,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:24,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:24,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:24,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-21 11:13:24,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:24,747 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:24,748 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:24,748 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:24,748 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:24,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:24,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:24,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:13:24,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:24,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:13:24,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:13:24,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 11:13:24,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:24,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-21 11:13:24,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:24,772 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:24,772 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:24,773 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:24,773 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:24,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 11:13:24,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:24,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:24,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:24,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:24,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:24,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 11:13:24,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:24,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:24,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:24,777 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:24,777 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:24,777 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:24,777 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:24,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:24,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:24,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:13:24,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:24,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:24,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:24,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:24,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:24,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-21 11:13:24,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:24,783 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:24,784 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:24,784 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:24,784 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:24,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:24,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:24,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:13:24,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:24,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:13:24,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:24,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:24,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:24,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-09-21 11:13:24,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:24,803 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:24,803 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:24,803 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:24,803 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:24,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:24,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:24,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:13:24,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:24,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:24,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:24,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:24,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:24,824 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 17 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-21 11:13:24,824 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [340526295] [2020-09-21 11:13:24,825 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:13:24,825 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-21 11:13:24,825 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188980715] [2020-09-21 11:13:24,826 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-21 11:13:24,826 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:13:24,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-21 11:13:24,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-09-21 11:13:24,828 INFO L87 Difference]: Start difference. First operand 363 states and 428 transitions. Second operand 12 states. [2020-09-21 11:13:25,298 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:25,999 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:26,776 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:27,126 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:27,438 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:27,761 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:28,108 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 11:13:28,420 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 11:13:29,228 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:29,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:13:29,893 INFO L93 Difference]: Finished difference Result 801 states and 996 transitions. [2020-09-21 11:13:29,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-09-21 11:13:29,894 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 113 [2020-09-21 11:13:29,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:13:29,899 INFO L225 Difference]: With dead ends: 801 [2020-09-21 11:13:29,899 INFO L226 Difference]: Without dead ends: 527 [2020-09-21 11:13:29,901 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 41 SyntacticMatches, 4 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=224, Invalid=532, Unknown=0, NotChecked=0, Total=756 [2020-09-21 11:13:29,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2020-09-21 11:13:29,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 459. [2020-09-21 11:13:29,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 459 states. [2020-09-21 11:13:29,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 546 transitions. [2020-09-21 11:13:29,987 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 546 transitions. Word has length 113 [2020-09-21 11:13:29,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:13:29,988 INFO L479 AbstractCegarLoop]: Abstraction has 459 states and 546 transitions. [2020-09-21 11:13:29,988 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-21 11:13:29,988 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 546 transitions. [2020-09-21 11:13:29,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-21 11:13:29,990 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:29,990 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:13:29,990 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-21 11:13:29,990 INFO L427 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:29,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:29,991 INFO L82 PathProgramCache]: Analyzing trace with hash 1088865250, now seen corresponding path program 2 times [2020-09-21 11:13:29,991 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:29,991 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [927064876] [2020-09-21 11:13:29,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:30,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-21 11:13:30,101 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-21 11:13:30,101 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-21 11:13:30,108 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-21 11:13:30,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 11:13:30 BoogieIcfgContainer [2020-09-21 11:13:30,163 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-21 11:13:30,170 INFO L168 Benchmark]: Toolchain (without parser) took 45792.39 ms. Allocated memory was 142.6 MB in the beginning and 661.7 MB in the end (delta: 519.0 MB). Free memory was 104.9 MB in the beginning and 277.1 MB in the end (delta: -172.2 MB). Peak memory consumption was 346.8 MB. Max. memory is 7.1 GB. [2020-09-21 11:13:30,175 INFO L168 Benchmark]: CDTParser took 0.84 ms. Allocated memory is still 142.6 MB. Free memory was 124.1 MB in the beginning and 123.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-21 11:13:30,178 INFO L168 Benchmark]: CACSL2BoogieTranslator took 747.67 ms. Allocated memory was 142.6 MB in the beginning and 205.0 MB in the end (delta: 62.4 MB). Free memory was 104.2 MB in the beginning and 174.5 MB in the end (delta: -70.3 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. [2020-09-21 11:13:30,181 INFO L168 Benchmark]: Boogie Preprocessor took 107.42 ms. Allocated memory is still 205.0 MB. Free memory was 174.5 MB in the beginning and 170.6 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. [2020-09-21 11:13:30,181 INFO L168 Benchmark]: RCFGBuilder took 1207.45 ms. Allocated memory was 205.0 MB in the beginning and 233.3 MB in the end (delta: 28.3 MB). Free memory was 170.6 MB in the beginning and 192.4 MB in the end (delta: -21.7 MB). Peak memory consumption was 79.3 MB. Max. memory is 7.1 GB. [2020-09-21 11:13:30,182 INFO L168 Benchmark]: TraceAbstraction took 43719.16 ms. Allocated memory was 233.3 MB in the beginning and 661.7 MB in the end (delta: 428.3 MB). Free memory was 191.0 MB in the beginning and 277.1 MB in the end (delta: -86.1 MB). Peak memory consumption was 342.3 MB. Max. memory is 7.1 GB. [2020-09-21 11:13:30,187 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.84 ms. Allocated memory is still 142.6 MB. Free memory was 124.1 MB in the beginning and 123.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 747.67 ms. Allocated memory was 142.6 MB in the beginning and 205.0 MB in the end (delta: 62.4 MB). Free memory was 104.2 MB in the beginning and 174.5 MB in the end (delta: -70.3 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 107.42 ms. Allocated memory is still 205.0 MB. Free memory was 174.5 MB in the beginning and 170.6 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1207.45 ms. Allocated memory was 205.0 MB in the beginning and 233.3 MB in the end (delta: 28.3 MB). Free memory was 170.6 MB in the beginning and 192.4 MB in the end (delta: -21.7 MB). Peak memory consumption was 79.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 43719.16 ms. Allocated memory was 233.3 MB in the beginning and 661.7 MB in the end (delta: 428.3 MB). Free memory was 191.0 MB in the beginning and 277.1 MB in the end (delta: -86.1 MB). Peak memory consumption was 342.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 869]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L406] int cleanupTimeShifts = 4; [L615] int waterLevel = 1; [L616] int methaneLevelCritical = 0; [L712] int pumpRunning = 0; [L713] int systemActive = 1; [L487] int retValue_acc ; [L488] int tmp ; [L492] FCALL select_helpers() [L493] FCALL select_features() [L494] CALL, EXPR valid_product() [L536] int retValue_acc ; [L539] retValue_acc = 1 [L540] return (retValue_acc); [L494] RET, EXPR valid_product() [L494] tmp = valid_product() [L496] COND TRUE \read(tmp) [L498] FCALL setup() [L499] CALL runTest() [L478] CALL test() [L546] int splverifierCounter ; [L547] int tmp ; [L548] int tmp___0 ; [L549] int tmp___1 ; [L550] int tmp___2 ; [L553] splverifierCounter = 0 [L555] COND TRUE 1 [L557] COND TRUE splverifierCounter < 4 [L563] tmp = __VERIFIER_nondet_int() [L565] COND TRUE \read(tmp) [L567] CALL waterRise() [L633] COND TRUE waterLevel < 2 [L634] waterLevel = waterLevel + 1 [L567] RET waterRise() [L573] tmp___0 = __VERIFIER_nondet_int() [L575] COND FALSE !(\read(tmp___0)) [L583] tmp___2 = __VERIFIER_nondet_int() [L585] COND TRUE \read(tmp___2) [L598] CALL timeShift() [L720] COND FALSE !(\read(pumpRunning)) [L727] COND TRUE \read(systemActive) [L729] CALL processEnvironment() [L749] int tmp ; [L752] COND TRUE ! pumpRunning [L754] CALL, EXPR isHighWaterLevel() [L846] int retValue_acc ; [L847] int tmp ; [L848] int tmp___0 ; [L852] CALL, EXPR isHighWaterSensorDry() [L695] int retValue_acc ; [L698] COND FALSE !(waterLevel < 2) [L702] retValue_acc = 0 [L703] return (retValue_acc); [L852] RET, EXPR isHighWaterSensorDry() [L852] tmp = isHighWaterSensorDry() [L854] COND FALSE !(\read(tmp)) [L857] tmp___0 = 1 [L859] retValue_acc = tmp___0 [L860] return (retValue_acc); [L754] RET, EXPR isHighWaterLevel() [L754] tmp = isHighWaterLevel() [L756] COND TRUE \read(tmp) [L758] CALL activatePump() [L777] pumpRunning = 1 [L758] RET activatePump() [L729] RET processEnvironment() [L735] CALL __utac_acc__Specification4_spec__1() [L875] int tmp ; [L876] int tmp___0 ; [L880] CALL, EXPR getWaterLevel() [L686] int retValue_acc ; [L689] retValue_acc = waterLevel [L690] return (retValue_acc); [L880] RET, EXPR getWaterLevel() [L880] tmp = getWaterLevel() [L882] COND FALSE !(tmp == 0) [L735] RET __utac_acc__Specification4_spec__1() [L598] RET timeShift() [L555] COND TRUE 1 [L557] COND TRUE splverifierCounter < 4 [L563] tmp = __VERIFIER_nondet_int() [L565] COND FALSE !(\read(tmp)) [L573] tmp___0 = __VERIFIER_nondet_int() [L575] COND FALSE !(\read(tmp___0)) [L583] tmp___2 = __VERIFIER_nondet_int() [L585] COND TRUE \read(tmp___2) [L598] CALL timeShift() [L720] COND TRUE \read(pumpRunning) [L722] CALL lowerWaterLevel() [L621] COND TRUE waterLevel > 0 [L622] waterLevel = waterLevel - 1 [L722] RET lowerWaterLevel() [L727] COND TRUE \read(systemActive) [L729] CALL processEnvironment() [L749] int tmp ; [L752] COND FALSE !(! pumpRunning) [L767] FCALL processEnvironment__wrappee__base() [L729] RET processEnvironment() [L735] CALL __utac_acc__Specification4_spec__1() [L875] int tmp ; [L876] int tmp___0 ; [L880] CALL, EXPR getWaterLevel() [L686] int retValue_acc ; [L689] retValue_acc = waterLevel [L690] return (retValue_acc); [L880] RET, EXPR getWaterLevel() [L880] tmp = getWaterLevel() [L882] COND FALSE !(tmp == 0) [L735] RET __utac_acc__Specification4_spec__1() [L598] RET timeShift() [L555] COND TRUE 1 [L557] COND TRUE splverifierCounter < 4 [L563] tmp = __VERIFIER_nondet_int() [L565] COND FALSE !(\read(tmp)) [L573] tmp___0 = __VERIFIER_nondet_int() [L575] COND FALSE !(\read(tmp___0)) [L583] tmp___2 = __VERIFIER_nondet_int() [L585] COND TRUE \read(tmp___2) [L598] CALL timeShift() [L720] COND TRUE \read(pumpRunning) [L722] CALL lowerWaterLevel() [L621] COND TRUE waterLevel > 0 [L622] waterLevel = waterLevel - 1 [L722] RET lowerWaterLevel() [L727] COND TRUE \read(systemActive) [L729] CALL processEnvironment() [L749] int tmp ; [L752] COND FALSE !(! pumpRunning) [L767] FCALL processEnvironment__wrappee__base() [L729] RET processEnvironment() [L735] CALL __utac_acc__Specification4_spec__1() [L875] int tmp ; [L876] int tmp___0 ; [L880] CALL, EXPR getWaterLevel() [L686] int retValue_acc ; [L689] retValue_acc = waterLevel [L690] return (retValue_acc); [L880] RET, EXPR getWaterLevel() [L880] tmp = getWaterLevel() [L882] COND TRUE tmp == 0 [L884] CALL, EXPR isPumpRunning() [L801] int retValue_acc ; [L804] retValue_acc = pumpRunning [L805] return (retValue_acc); [L884] RET, EXPR isPumpRunning() [L884] tmp___0 = isPumpRunning() [L886] COND TRUE \read(tmp___0) [L888] CALL __automaton_fail() [L869] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 37 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 43.5s, OverallIterations: 13, TraceHistogramMax: 3, AutomataDifference: 33.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1228 SDtfs, 2323 SDslu, 1342 SDs, 0 SdLazy, 5515 SolverSat, 1498 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 16.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 452 GetRequests, 310 SyntacticMatches, 7 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 334 ImplicationChecksByTransitivity, 15.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=463occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 12 MinimizatonAttempts, 441 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 7.7s InterpolantComputationTime, 1064 NumberOfCodeBlocks, 1064 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 904 ConstructedInterpolants, 0 QuantifiedInterpolants, 282802 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 9 PerfectInterpolantSequences, 64/72 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...