/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options 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_spec2_product56.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 15:45:44,786 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 15:45:44,790 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 15:45:44,817 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 15:45:44,817 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 15:45:44,818 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 15:45:44,820 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 15:45:44,822 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 15:45:44,824 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 15:45:44,825 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 15:45:44,826 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 15:45:44,827 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 15:45:44,827 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 15:45:44,829 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 15:45:44,830 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 15:45:44,831 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 15:45:44,832 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 15:45:44,833 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 15:45:44,835 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 15:45:44,837 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 15:45:44,839 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 15:45:44,840 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 15:45:44,842 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 15:45:44,843 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 15:45:44,846 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 15:45:44,846 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 15:45:44,846 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 15:45:44,848 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 15:45:44,848 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 15:45:44,849 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 15:45:44,849 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 15:45:44,850 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 15:45:44,851 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 15:45:44,852 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 15:45:44,853 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 15:45:44,854 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 15:45:44,854 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 15:45:44,855 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 15:45:44,855 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 15:45:44,856 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 15:45:44,857 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 15:45:44,858 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 15:45:44,884 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 15:45:44,884 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 15:45:44,886 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 15:45:44,886 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 15:45:44,886 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 15:45:44,886 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 15:45:44,887 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 15:45:44,887 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 15:45:44,887 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 15:45:44,887 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 15:45:44,887 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 15:45:44,888 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 15:45:44,888 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 15:45:44,888 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 15:45:44,888 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 15:45:44,888 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 15:45:44,888 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 15:45:44,889 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 15:45:44,889 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 15:45:44,889 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 15:45:44,889 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 15:45:44,889 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 15:45:44,890 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 15:45:44,890 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 15:45:44,890 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 15:45:44,890 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 15:45:44,890 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 15:45:44,891 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 15:45:44,891 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 15:45:44,891 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;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; [2020-09-24 15:45:45,348 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 15:45:45,366 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 15:45:45,370 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 15:45:45,372 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 15:45:45,373 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 15:45:45,374 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product56.cil.c [2020-09-24 15:45:45,454 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5160cd1f7/26efcb0f3dbe482aab92859f697fa800/FLAGb35b4eff8 [2020-09-24 15:45:46,124 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 15:45:46,124 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product56.cil.c [2020-09-24 15:45:46,140 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5160cd1f7/26efcb0f3dbe482aab92859f697fa800/FLAGb35b4eff8 [2020-09-24 15:45:46,348 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5160cd1f7/26efcb0f3dbe482aab92859f697fa800 [2020-09-24 15:45:46,361 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 15:45:46,366 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 15:45:46,367 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 15:45:46,367 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 15:45:46,371 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 15:45:46,372 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 03:45:46" (1/1) ... [2020-09-24 15:45:46,377 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ecced43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:45:46, skipping insertion in model container [2020-09-24 15:45:46,377 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 03:45:46" (1/1) ... [2020-09-24 15:45:46,386 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 15:45:46,439 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 15:45:46,871 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 15:45:46,886 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 15:45:47,068 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 15:45:47,109 INFO L208 MainTranslator]: Completed translation [2020-09-24 15:45:47,109 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:45:47 WrapperNode [2020-09-24 15:45:47,109 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 15:45:47,110 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 15:45:47,110 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 15:45:47,110 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 15:45:47,126 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:45:47" (1/1) ... [2020-09-24 15:45:47,126 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:45:47" (1/1) ... [2020-09-24 15:45:47,147 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:45:47" (1/1) ... [2020-09-24 15:45:47,147 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:45:47" (1/1) ... [2020-09-24 15:45:47,183 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:45:47" (1/1) ... [2020-09-24 15:45:47,195 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:45:47" (1/1) ... [2020-09-24 15:45:47,201 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:45:47" (1/1) ... [2020-09-24 15:45:47,209 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 15:45:47,210 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 15:45:47,210 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 15:45:47,210 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 15:45:47,211 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:45:47" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 15:45:47,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 15:45:47,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 15:45:47,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 15:45:47,288 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 15:45:47,288 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 15:45:47,288 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 15:45:47,288 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 15:45:47,289 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 15:45:47,289 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 15:45:47,289 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 15:45:47,289 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 15:45:47,289 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 15:45:47,290 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 15:45:47,290 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 15:45:47,290 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 15:45:47,290 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 15:45:47,290 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 15:45:47,291 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 15:45:47,291 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-24 15:45:47,291 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-24 15:45:47,291 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 15:45:47,292 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 15:45:47,292 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 15:45:47,292 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-24 15:45:47,292 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 15:45:47,292 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 15:45:47,292 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 15:45:47,293 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 15:45:47,293 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 15:45:47,293 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 15:45:47,293 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 15:45:47,293 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 15:45:47,293 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 15:45:47,293 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 15:45:47,294 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 15:45:47,294 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 15:45:47,294 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 15:45:47,294 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 15:45:47,294 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 15:45:47,295 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 15:45:47,295 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 15:45:47,295 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 15:45:47,295 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 15:45:47,295 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 15:45:47,295 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 15:45:47,296 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 15:45:47,296 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 15:45:47,296 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 15:45:47,296 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 15:45:47,296 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 15:45:47,296 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 15:45:47,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 15:45:47,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 15:45:47,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 15:45:47,297 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 15:45:47,297 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 15:45:47,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 15:45:47,297 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 15:45:47,298 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 15:45:47,298 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 15:45:47,298 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 15:45:47,298 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 15:45:47,298 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 15:45:47,299 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 15:45:47,299 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 15:45:47,299 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 15:45:47,299 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 15:45:47,299 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 15:45:47,299 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 15:45:47,299 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 15:45:47,300 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 15:45:47,300 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 15:45:47,300 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 15:45:47,300 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 15:45:47,300 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-24 15:45:47,300 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-24 15:45:47,301 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 15:45:47,301 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 15:45:47,301 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 15:45:47,301 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 15:45:47,301 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 15:45:47,301 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 15:45:47,302 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 15:45:47,302 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 15:45:47,302 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 15:45:47,302 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 15:45:47,302 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 15:45:47,302 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-24 15:45:47,302 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 15:45:47,303 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 15:45:47,303 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 15:45:47,303 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 15:45:47,303 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 15:45:47,303 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 15:45:47,303 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 15:45:47,303 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 15:45:47,304 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 15:45:47,304 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 15:45:47,304 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 15:45:47,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 15:45:47,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 15:45:47,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 15:45:48,537 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 15:45:48,537 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 15:45:48,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 03:45:48 BoogieIcfgContainer [2020-09-24 15:45:48,545 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 15:45:48,547 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 15:45:48,547 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 15:45:48,550 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 15:45:48,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 03:45:46" (1/3) ... [2020-09-24 15:45:48,552 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70f11aa2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 03:45:48, skipping insertion in model container [2020-09-24 15:45:48,552 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:45:47" (2/3) ... [2020-09-24 15:45:48,552 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70f11aa2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 03:45:48, skipping insertion in model container [2020-09-24 15:45:48,552 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 03:45:48" (3/3) ... [2020-09-24 15:45:48,555 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product56.cil.c [2020-09-24 15:45:48,567 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 15:45:48,578 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 15:45:48,601 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 15:45:48,634 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 15:45:48,635 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 15:45:48,635 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 15:45:48,635 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 15:45:48,635 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 15:45:48,635 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 15:45:48,635 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 15:45:48,636 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 15:45:48,667 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states. [2020-09-24 15:45:48,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-24 15:45:48,685 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:45:48,687 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:45:48,687 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:45:48,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:45:48,695 INFO L82 PathProgramCache]: Analyzing trace with hash -1985307326, now seen corresponding path program 1 times [2020-09-24 15:45:48,706 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:45:48,706 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2109746036] [2020-09-24 15:45:48,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:45:49,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:49,091 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:49,092 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:49,092 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:49,092 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:49,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-24 15:45:49,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:49,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 15:45:49,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:49,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:49,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-24 15:45:49,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:49,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:45:49,616 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:45:49,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:45:49,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:49,653 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:49,653 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:49,653 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:49,653 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:49,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 15:45:49,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:49,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 15:45:49,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:49,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:49,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:49,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:49,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:49,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 15:45:49,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:49,738 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:49,738 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:49,738 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:49,739 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:49,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:45:49,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:49,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:49,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:49,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:49,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:49,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:49,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:49,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 15:45:49,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:49,744 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:49,744 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:49,744 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:49,745 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:49,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:45:49,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:49,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:49,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:49,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:49,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:49,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:49,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:49,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 15:45:49,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:49,750 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:49,750 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:49,751 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:49,751 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:49,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:45:49,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:49,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:49,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:49,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:49,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:49,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:49,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:45:49,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 15:45:49,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:49,757 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:49,757 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:49,758 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:49,758 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:49,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:45:49,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:49,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:49,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:49,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:49,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:49,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:49,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:45:49,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 15:45:49,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:49,770 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:49,770 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:49,771 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:49,771 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:49,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:45:49,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:49,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:49,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:49,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:49,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:49,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:49,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:49,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 15:45:49,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:49,780 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:49,780 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:49,781 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:49,781 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:49,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:45:49,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:49,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:49,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:49,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:49,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:45:49,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:49,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:49,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 15:45:49,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:49,788 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:49,788 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:49,788 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:49,788 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:49,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:45:49,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:49,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:49,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:49,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:49,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:45:49,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:49,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:45:49,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:45:49,820 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2109746036] [2020-09-24 15:45:49,823 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:45:49,823 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 15:45:49,824 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407969522] [2020-09-24 15:45:49,831 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 15:45:49,832 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:45:49,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 15:45:49,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-24 15:45:49,855 INFO L87 Difference]: Start difference. First operand 351 states. Second operand 4 states. [2020-09-24 15:45:51,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:45:51,324 INFO L93 Difference]: Finished difference Result 569 states and 677 transitions. [2020-09-24 15:45:51,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-24 15:45:51,326 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2020-09-24 15:45:51,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:45:51,347 INFO L225 Difference]: With dead ends: 569 [2020-09-24 15:45:51,348 INFO L226 Difference]: Without dead ends: 354 [2020-09-24 15:45:51,354 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-24 15:45:51,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2020-09-24 15:45:51,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 300. [2020-09-24 15:45:51,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 300 states. [2020-09-24 15:45:51,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 330 transitions. [2020-09-24 15:45:51,468 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 330 transitions. Word has length 148 [2020-09-24 15:45:51,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:45:51,469 INFO L479 AbstractCegarLoop]: Abstraction has 300 states and 330 transitions. [2020-09-24 15:45:51,469 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 15:45:51,469 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 330 transitions. [2020-09-24 15:45:51,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-09-24 15:45:51,474 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:45:51,475 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:45:51,475 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 15:45:51,475 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:45:51,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:45:51,476 INFO L82 PathProgramCache]: Analyzing trace with hash 918955076, now seen corresponding path program 1 times [2020-09-24 15:45:51,476 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:45:51,476 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1652493418] [2020-09-24 15:45:51,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:45:51,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:51,560 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:51,560 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:51,560 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:51,561 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:51,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-09-24 15:45:51,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:51,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 15:45:51,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:51,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:45:51,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-24 15:45:51,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 15:45:51,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:51,939 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:45:51,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:45:51,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:51,951 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:51,951 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:51,951 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:51,952 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:51,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 15:45:51,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:51,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:51,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:51,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:51,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:51,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:51,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:52,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 15:45:52,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:52,017 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:52,017 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:52,018 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:52,018 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:52,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:45:52,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:52,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:52,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:52,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:52,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:52,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:52,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:52,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 15:45:52,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:52,024 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:52,024 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:52,025 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:52,025 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:52,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:45:52,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:52,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:45:52,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:52,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:52,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:52,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:52,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:52,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 15:45:52,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:52,030 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:52,030 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:52,030 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:52,030 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:52,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:45:52,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:52,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:52,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:52,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:52,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:52,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:52,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:52,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 15:45:52,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:52,036 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:52,036 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:52,036 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:52,036 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:52,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:45:52,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:52,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:52,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:52,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:52,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:52,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:52,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:52,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 15:45:52,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:52,052 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:52,053 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:52,057 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:52,057 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:52,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:45:52,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:52,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 15:45:52,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:52,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:52,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:52,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:52,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:45:52,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-24 15:45:52,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:52,066 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:52,066 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:52,067 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:52,067 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:52,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:45:52,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:52,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:45:52,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:52,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:52,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:45:52,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:52,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:45:52,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 15:45:52,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:52,074 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:52,074 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:52,074 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:52,075 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:52,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:45:52,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:52,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:52,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:52,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:52,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:45:52,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:52,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:52,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:45:52,108 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1652493418] [2020-09-24 15:45:52,108 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:45:52,108 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 15:45:52,109 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672836442] [2020-09-24 15:45:52,112 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 15:45:52,112 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:45:52,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 15:45:52,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 15:45:52,113 INFO L87 Difference]: Start difference. First operand 300 states and 330 transitions. Second operand 5 states. [2020-09-24 15:45:52,788 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:45:54,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:45:54,179 INFO L93 Difference]: Finished difference Result 488 states and 560 transitions. [2020-09-24 15:45:54,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 15:45:54,180 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 149 [2020-09-24 15:45:54,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:45:54,184 INFO L225 Difference]: With dead ends: 488 [2020-09-24 15:45:54,185 INFO L226 Difference]: Without dead ends: 343 [2020-09-24 15:45:54,187 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 15:45:54,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2020-09-24 15:45:54,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 290. [2020-09-24 15:45:54,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2020-09-24 15:45:54,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 317 transitions. [2020-09-24 15:45:54,234 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 317 transitions. Word has length 149 [2020-09-24 15:45:54,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:45:54,235 INFO L479 AbstractCegarLoop]: Abstraction has 290 states and 317 transitions. [2020-09-24 15:45:54,235 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 15:45:54,235 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 317 transitions. [2020-09-24 15:45:54,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-09-24 15:45:54,238 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:45:54,238 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:45:54,239 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 15:45:54,239 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:45:54,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:45:54,239 INFO L82 PathProgramCache]: Analyzing trace with hash 1584362740, now seen corresponding path program 1 times [2020-09-24 15:45:54,240 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:45:54,240 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [700807017] [2020-09-24 15:45:54,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:45:54,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:54,306 FATAL L256 erpolLogProxyWrapper]: Difference in size: 5 [2020-09-24 15:45:54,306 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -48 [2020-09-24 15:45:54,306 FATAL L256 erpolLogProxyWrapper]: Difference in width: 48 [2020-09-24 15:45:54,306 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:54,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 195 [2020-09-24 15:45:54,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:54,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:45:54,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:54,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:45:54,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-24 15:45:54,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:45:54,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:54,635 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:45:54,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:45:54,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:54,647 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:54,648 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:54,648 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:54,648 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:54,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 15:45:54,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:54,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:54,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:54,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:54,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:54,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:54,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:54,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 15:45:54,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:54,695 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:54,695 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:54,696 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:54,696 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:54,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:45:54,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:54,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:54,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:54,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:54,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:54,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:54,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:54,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 15:45:54,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:54,700 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:54,701 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:54,701 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:54,701 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:54,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:45:54,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:54,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:54,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:54,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:54,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:54,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:54,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:54,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 15:45:54,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:54,705 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:54,706 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:54,706 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:54,706 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:54,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:45:54,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:54,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:54,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:54,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:54,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:54,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:54,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:54,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 15:45:54,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:54,712 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:54,712 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:54,712 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:54,712 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:54,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:45:54,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:54,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:54,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:54,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:54,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:54,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:54,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:54,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 15:45:54,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:54,770 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:54,770 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:54,770 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:54,771 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:54,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:45:54,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:54,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:54,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:54,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:54,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:54,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:54,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:54,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 15:45:54,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:54,785 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:54,785 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:54,786 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:54,786 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:54,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:45:54,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:54,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:45:54,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:54,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:45:54,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:54,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 15:45:54,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:54,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-24 15:45:54,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:54,792 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:54,793 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:54,793 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:54,793 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:54,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:45:54,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:54,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:54,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:54,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:54,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:45:54,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:54,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:54,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-24 15:45:54,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:54,797 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:54,798 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:54,798 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:54,798 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:54,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:45:54,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:54,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:54,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:54,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:54,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:45:54,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:54,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:54,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:45:54,839 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [700807017] [2020-09-24 15:45:54,840 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:45:54,840 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 15:45:54,841 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329446176] [2020-09-24 15:45:54,842 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 15:45:54,842 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:45:54,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 15:45:54,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 15:45:54,843 INFO L87 Difference]: Start difference. First operand 290 states and 317 transitions. Second operand 6 states. [2020-09-24 15:45:55,365 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:45:58,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:45:58,263 INFO L93 Difference]: Finished difference Result 728 states and 857 transitions. [2020-09-24 15:45:58,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 15:45:58,264 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 162 [2020-09-24 15:45:58,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:45:58,269 INFO L225 Difference]: With dead ends: 728 [2020-09-24 15:45:58,269 INFO L226 Difference]: Without dead ends: 553 [2020-09-24 15:45:58,271 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-24 15:45:58,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2020-09-24 15:45:58,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 455. [2020-09-24 15:45:58,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 455 states. [2020-09-24 15:45:58,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 510 transitions. [2020-09-24 15:45:58,356 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 510 transitions. Word has length 162 [2020-09-24 15:45:58,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:45:58,357 INFO L479 AbstractCegarLoop]: Abstraction has 455 states and 510 transitions. [2020-09-24 15:45:58,357 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 15:45:58,357 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 510 transitions. [2020-09-24 15:45:58,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-24 15:45:58,360 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:45:58,361 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:45:58,361 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 15:45:58,361 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:45:58,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:45:58,362 INFO L82 PathProgramCache]: Analyzing trace with hash 247268501, now seen corresponding path program 1 times [2020-09-24 15:45:58,362 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:45:58,362 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1184872464] [2020-09-24 15:45:58,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:45:58,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:58,464 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:58,464 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:58,464 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:58,464 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:58,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-24 15:45:58,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:58,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-24 15:45:58,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:58,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 15:45:58,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 15:45:58,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-09-24 15:45:58,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:58,818 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:45:58,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:45:58,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:58,861 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:58,862 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:58,862 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:58,862 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:58,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 15:45:58,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:58,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:45:58,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:58,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:45:58,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:58,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 15:45:58,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:58,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 15:45:58,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:58,914 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:58,914 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:58,915 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:58,915 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:58,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:45:58,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:58,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:58,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:58,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:45:58,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:58,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:45:58,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:58,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 15:45:58,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:58,920 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:58,920 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:58,921 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:58,921 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:58,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:45:58,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:58,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:58,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:58,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:45:58,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:58,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:45:58,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:58,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 15:45:58,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:58,927 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:58,927 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:58,927 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:58,927 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:58,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:45:58,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:58,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:58,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:58,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:45:58,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:58,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:45:58,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:58,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 15:45:58,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:58,933 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:58,934 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:58,934 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:58,934 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:58,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:45:58,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:58,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:58,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:58,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:45:58,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:58,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:45:58,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:58,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 15:45:58,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:58,952 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:58,952 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:58,952 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:58,953 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:58,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:45:58,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:58,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:58,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:58,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:45:58,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:58,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 15:45:58,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:58,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-24 15:45:58,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:58,972 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:58,972 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:58,972 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:58,972 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:58,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 15:45:58,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:58,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:58,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:58,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:45:58,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:58,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 15:45:58,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:58,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 15:45:58,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:58,983 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:58,983 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:58,983 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:58,984 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:58,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:45:58,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:58,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 15:45:58,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:58,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:45:58,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:45:58,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:45:58,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:59,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-24 15:45:59,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:45:59,020 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:45:59,020 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:45:59,020 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:45:59,020 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:45:59,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:45:59,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:45:59,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:45:59,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:45:59,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:45:59,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:45:59,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:45:59,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:45:59,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:45:59,074 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1184872464] [2020-09-24 15:45:59,074 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:45:59,074 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 15:45:59,074 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864415230] [2020-09-24 15:45:59,075 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 15:45:59,075 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:45:59,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 15:45:59,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 15:45:59,076 INFO L87 Difference]: Start difference. First operand 455 states and 510 transitions. Second operand 10 states. [2020-09-24 15:45:59,755 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:46:01,163 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:46:01,563 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 15:46:02,038 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:46:02,337 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:46:02,699 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:46:03,197 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 15:46:03,565 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:46:04,315 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:46:06,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:46:06,134 INFO L93 Difference]: Finished difference Result 1272 states and 1540 transitions. [2020-09-24 15:46:06,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-24 15:46:06,135 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 167 [2020-09-24 15:46:06,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:46:06,150 INFO L225 Difference]: With dead ends: 1272 [2020-09-24 15:46:06,150 INFO L226 Difference]: Without dead ends: 932 [2020-09-24 15:46:06,153 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=159, Invalid=441, Unknown=0, NotChecked=0, Total=600 [2020-09-24 15:46:06,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 932 states. [2020-09-24 15:46:06,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 932 to 762. [2020-09-24 15:46:06,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 762 states. [2020-09-24 15:46:06,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 762 states to 762 states and 867 transitions. [2020-09-24 15:46:06,325 INFO L78 Accepts]: Start accepts. Automaton has 762 states and 867 transitions. Word has length 167 [2020-09-24 15:46:06,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:46:06,325 INFO L479 AbstractCegarLoop]: Abstraction has 762 states and 867 transitions. [2020-09-24 15:46:06,326 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 15:46:06,326 INFO L276 IsEmpty]: Start isEmpty. Operand 762 states and 867 transitions. [2020-09-24 15:46:06,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-24 15:46:06,331 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:46:06,331 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:46:06,332 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 15:46:06,332 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:46:06,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:46:06,332 INFO L82 PathProgramCache]: Analyzing trace with hash 1017465386, now seen corresponding path program 1 times [2020-09-24 15:46:06,333 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:46:06,333 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2068804018] [2020-09-24 15:46:06,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:46:06,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:06,487 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:06,487 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:06,487 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:06,487 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:06,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-09-24 15:46:06,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:06,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-09-24 15:46:06,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:06,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 15:46:06,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-24 15:46:06,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 121 [2020-09-24 15:46:06,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:06,872 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:46:06,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:46:06,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:06,914 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:06,915 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:06,915 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:06,915 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:06,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 15:46:06,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:06,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:46:06,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:06,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:06,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:06,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 15:46:06,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:06,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 15:46:06,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:06,964 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:06,964 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:06,965 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:06,965 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:06,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:06,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:06,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:06,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:06,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:06,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:06,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:46:06,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:06,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 15:46:06,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:06,971 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:06,971 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:06,971 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:06,971 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:06,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:06,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:06,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:06,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:06,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:06,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:06,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:46:06,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:06,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 15:46:06,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:06,977 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:06,978 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:06,978 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:06,978 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:06,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:06,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:06,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:06,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:06,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:06,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:06,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:46:06,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:06,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 15:46:06,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:06,984 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:06,984 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:06,985 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:06,985 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:06,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:06,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:06,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:06,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:06,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:06,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:06,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:46:06,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:07,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 15:46:07,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:07,004 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:07,004 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:07,004 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:07,004 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:07,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:46:07,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:07,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:07,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:07,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:07,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:07,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 15:46:07,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:07,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 15:46:07,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:07,025 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:07,026 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:07,026 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:07,026 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:07,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 15:46:07,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:07,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:46:07,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:07,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:07,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:07,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 15:46:07,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:07,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-24 15:46:07,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:07,056 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:07,057 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:07,057 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:07,057 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:07,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 15:46:07,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:07,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:07,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:07,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:07,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:07,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 15:46:07,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:07,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-24 15:46:07,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:07,068 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:07,069 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:07,069 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:07,069 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:07,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:07,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:07,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:46:07,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:07,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:07,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:07,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:46:07,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:07,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-24 15:46:07,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:07,080 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:07,080 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:07,080 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:07,081 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:07,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:07,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:07,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:46:07,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:07,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:46:07,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:07,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:46:07,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:07,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:46:07,174 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2068804018] [2020-09-24 15:46:07,175 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:46:07,175 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 15:46:07,176 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143235409] [2020-09-24 15:46:07,176 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 15:46:07,177 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:46:07,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 15:46:07,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-24 15:46:07,178 INFO L87 Difference]: Start difference. First operand 762 states and 867 transitions. Second operand 11 states. [2020-09-24 15:46:07,735 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:46:09,183 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:46:09,416 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:46:09,716 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:46:10,059 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:46:10,381 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:46:11,241 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:46:11,533 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:46:11,915 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:46:13,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:46:13,680 INFO L93 Difference]: Finished difference Result 2030 states and 2533 transitions. [2020-09-24 15:46:13,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-09-24 15:46:13,681 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 172 [2020-09-24 15:46:13,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:46:13,689 INFO L225 Difference]: With dead ends: 2030 [2020-09-24 15:46:13,690 INFO L226 Difference]: Without dead ends: 1383 [2020-09-24 15:46:13,693 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=283, Invalid=773, Unknown=0, NotChecked=0, Total=1056 [2020-09-24 15:46:13,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1383 states. [2020-09-24 15:46:13,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1383 to 1116. [2020-09-24 15:46:13,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1116 states. [2020-09-24 15:46:13,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1116 states to 1116 states and 1279 transitions. [2020-09-24 15:46:13,839 INFO L78 Accepts]: Start accepts. Automaton has 1116 states and 1279 transitions. Word has length 172 [2020-09-24 15:46:13,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:46:13,840 INFO L479 AbstractCegarLoop]: Abstraction has 1116 states and 1279 transitions. [2020-09-24 15:46:13,840 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 15:46:13,840 INFO L276 IsEmpty]: Start isEmpty. Operand 1116 states and 1279 transitions. [2020-09-24 15:46:13,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2020-09-24 15:46:13,844 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:46:13,844 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:46:13,844 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 15:46:13,845 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:46:13,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:46:13,845 INFO L82 PathProgramCache]: Analyzing trace with hash -1694641181, now seen corresponding path program 1 times [2020-09-24 15:46:13,845 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:46:13,846 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2125738416] [2020-09-24 15:46:13,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:46:13,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:13,909 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:13,910 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:13,910 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:13,910 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:13,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 257 [2020-09-24 15:46:13,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:13,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 15:46:13,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:13,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 15:46:13,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 202 [2020-09-24 15:46:13,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:46:13,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:14,175 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:46:14,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:46:14,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:14,185 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:14,185 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:14,186 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:14,186 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:14,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 15:46:14,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:14,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:14,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:14,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:14,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:14,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:14,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:14,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 15:46:14,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:14,226 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:14,226 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:14,226 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:14,227 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:14,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:14,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:14,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:14,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:14,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:14,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:14,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:14,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:14,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 15:46:14,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:14,231 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:14,231 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:14,231 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:14,231 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:14,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:14,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:14,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:14,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:14,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:14,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:14,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:14,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:14,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 15:46:14,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:14,236 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:14,236 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:14,237 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:14,237 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:14,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:14,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:14,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:14,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:14,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:14,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:14,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:14,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:14,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 15:46:14,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:14,242 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:14,242 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:14,242 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:14,242 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:14,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:14,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:14,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:14,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:14,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:14,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:14,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:14,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:14,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 15:46:14,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:14,253 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:14,254 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:14,254 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:14,254 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:14,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:46:14,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:14,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:14,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:14,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:14,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:14,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:14,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:14,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 15:46:14,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:14,265 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:14,266 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:14,266 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:14,266 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:14,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 15:46:14,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:14,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:14,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:14,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:14,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:14,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:14,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:14,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 15:46:14,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:14,279 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:14,279 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:14,279 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:14,279 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:14,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:46:14,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:14,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:14,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:14,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:14,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:14,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:14,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:14,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 15:46:14,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:14,302 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:14,303 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:14,303 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:14,303 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:14,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-24 15:46:14,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:14,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 15:46:14,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:14,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 15:46:14,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 15:46:14,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:46:14,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:14,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:46:14,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:14,326 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:14,326 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:14,326 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:14,327 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:14,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 15:46:14,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:14,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 15:46:14,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:14,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 15:46:14,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-24 15:46:14,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:46:14,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:14,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:46:14,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:14,343 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:14,343 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:14,344 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:14,344 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:14,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 15:46:14,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:14,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 15:46:14,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:14,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 15:46:14,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 15:46:14,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:46:14,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:14,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:46:14,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:14,376 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:14,376 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:14,377 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:14,377 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:14,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 15:46:14,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:14,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:46:14,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:14,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:46:14,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:14,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 15:46:14,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:14,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:46:14,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:14,439 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:14,440 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:14,440 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:14,440 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:14,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:46:14,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:14,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:14,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:14,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:14,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:14,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:14,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:14,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 15:46:14,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:14,446 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:14,446 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:14,447 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:14,447 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:14,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:46:14,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:14,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:14,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:14,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:14,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 15:46:14,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:14,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:14,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-09-24 15:46:14,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:14,456 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:14,457 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:14,457 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:14,457 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:14,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:14,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:14,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:14,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:14,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:14,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:46:14,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:14,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:14,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2020-09-24 15:46:14,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:14,462 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:14,462 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:14,463 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:14,463 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:14,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:14,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:14,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:14,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:14,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:14,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:46:14,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:14,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:14,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:46:14,512 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2125738416] [2020-09-24 15:46:14,512 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:46:14,512 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-24 15:46:14,512 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868729899] [2020-09-24 15:46:14,513 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-24 15:46:14,513 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:46:14,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-24 15:46:14,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-09-24 15:46:14,514 INFO L87 Difference]: Start difference. First operand 1116 states and 1279 transitions. Second operand 12 states. [2020-09-24 15:46:16,406 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:46:16,741 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 15:46:17,088 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-09-24 15:46:17,471 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:46:17,800 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 15:46:18,116 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:46:20,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:46:20,446 INFO L93 Difference]: Finished difference Result 2677 states and 3350 transitions. [2020-09-24 15:46:20,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-09-24 15:46:20,447 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 210 [2020-09-24 15:46:20,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:46:20,458 INFO L225 Difference]: With dead ends: 2677 [2020-09-24 15:46:20,459 INFO L226 Difference]: Without dead ends: 1676 [2020-09-24 15:46:20,463 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=217, Invalid=539, Unknown=0, NotChecked=0, Total=756 [2020-09-24 15:46:20,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1676 states. [2020-09-24 15:46:20,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1676 to 1154. [2020-09-24 15:46:20,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1154 states. [2020-09-24 15:46:20,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1154 states to 1154 states and 1319 transitions. [2020-09-24 15:46:20,637 INFO L78 Accepts]: Start accepts. Automaton has 1154 states and 1319 transitions. Word has length 210 [2020-09-24 15:46:20,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:46:20,638 INFO L479 AbstractCegarLoop]: Abstraction has 1154 states and 1319 transitions. [2020-09-24 15:46:20,638 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-24 15:46:20,638 INFO L276 IsEmpty]: Start isEmpty. Operand 1154 states and 1319 transitions. [2020-09-24 15:46:20,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2020-09-24 15:46:20,643 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:46:20,643 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:46:20,644 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 15:46:20,644 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:46:20,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:46:20,644 INFO L82 PathProgramCache]: Analyzing trace with hash -1756969917, now seen corresponding path program 1 times [2020-09-24 15:46:20,644 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:46:20,650 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2019643460] [2020-09-24 15:46:20,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:46:20,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:20,736 FATAL L256 erpolLogProxyWrapper]: Difference in size: 5 [2020-09-24 15:46:20,737 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -89 [2020-09-24 15:46:20,737 FATAL L256 erpolLogProxyWrapper]: Difference in width: 89 [2020-09-24 15:46:20,737 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:20,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 257 [2020-09-24 15:46:20,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:20,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 15:46:20,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:20,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:46:20,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 194 [2020-09-24 15:46:20,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:46:20,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:21,077 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:46:21,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:46:21,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:21,086 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:21,141 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:21,141 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:21,141 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:21,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 15:46:21,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:21,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-09-24 15:46:21,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:21,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:21,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:21,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:21,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:21,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 15:46:21,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:21,183 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:21,183 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:21,183 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:21,183 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:21,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:21,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:21,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:21,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:21,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:21,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:21,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:21,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:21,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 15:46:21,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:21,187 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:21,187 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:21,187 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:21,188 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:21,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:21,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:21,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:21,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:21,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:21,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:21,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:21,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:21,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 15:46:21,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:21,192 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:21,192 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:21,192 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:21,192 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:21,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:21,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:21,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:21,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:21,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:21,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:21,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:21,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:21,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 15:46:21,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:21,197 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:21,198 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:21,198 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:21,198 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:21,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:21,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:21,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:21,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:21,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:21,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:21,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:21,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:21,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 15:46:21,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:21,212 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:21,212 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:21,213 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:21,213 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:21,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:46:21,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:21,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:21,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:21,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:21,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:21,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:21,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:21,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 15:46:21,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:21,228 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:21,228 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:21,229 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:21,229 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:21,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 15:46:21,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:21,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:21,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:21,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:21,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:21,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:21,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:21,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 15:46:21,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:21,242 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:21,242 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:21,243 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:21,243 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:21,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:46:21,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:21,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:21,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:21,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:21,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:21,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:21,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:21,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 15:46:21,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:21,266 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:21,266 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:21,267 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:21,267 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:21,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-24 15:46:21,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:21,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 15:46:21,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:21,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:46:21,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-09-24 15:46:21,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:46:21,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:21,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:46:21,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:21,292 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:21,292 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:21,292 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:21,292 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:21,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 15:46:21,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:21,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 15:46:21,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:21,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:46:21,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-24 15:46:21,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:46:21,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:21,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:46:21,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:21,313 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:21,314 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:21,314 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:21,314 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:21,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 15:46:21,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:21,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:46:21,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:21,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:46:21,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 15:46:21,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:46:21,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:21,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:46:21,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:21,328 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:21,328 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:21,329 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:21,329 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:21,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 15:46:21,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:21,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 15:46:21,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:21,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:46:21,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:46:21,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:46:21,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:21,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:46:21,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:21,359 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:21,360 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:21,360 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:21,360 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:21,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:46:21,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:21,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:46:21,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:21,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 15:46:21,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:21,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:46:21,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:21,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 15:46:21,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:21,391 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:21,391 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:21,391 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:21,392 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:21,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:46:21,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:21,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:21,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:21,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:21,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 15:46:21,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:21,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:21,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-09-24 15:46:21,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:21,401 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:21,402 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:21,402 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:21,402 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:21,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:21,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:21,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:21,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:21,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:21,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:46:21,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:21,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:21,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2020-09-24 15:46:21,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:21,408 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:21,409 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:21,409 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:21,409 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:21,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:21,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:21,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:21,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:21,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:21,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:46:21,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:21,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:21,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:46:21,457 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2019643460] [2020-09-24 15:46:21,457 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:46:21,458 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 15:46:21,458 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537616191] [2020-09-24 15:46:21,459 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 15:46:21,459 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:46:21,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 15:46:21,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-09-24 15:46:21,460 INFO L87 Difference]: Start difference. First operand 1154 states and 1319 transitions. Second operand 11 states. [2020-09-24 15:46:22,962 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:46:23,277 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 15:46:23,605 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:46:23,952 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 15:46:24,285 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:46:26,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:46:26,727 INFO L93 Difference]: Finished difference Result 2759 states and 3500 transitions. [2020-09-24 15:46:26,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-24 15:46:26,728 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 210 [2020-09-24 15:46:26,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:46:26,741 INFO L225 Difference]: With dead ends: 2759 [2020-09-24 15:46:26,742 INFO L226 Difference]: Without dead ends: 1720 [2020-09-24 15:46:26,747 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2020-09-24 15:46:26,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1720 states. [2020-09-24 15:46:26,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1720 to 1178. [2020-09-24 15:46:26,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1178 states. [2020-09-24 15:46:26,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1178 states to 1178 states and 1343 transitions. [2020-09-24 15:46:26,936 INFO L78 Accepts]: Start accepts. Automaton has 1178 states and 1343 transitions. Word has length 210 [2020-09-24 15:46:26,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:46:26,936 INFO L479 AbstractCegarLoop]: Abstraction has 1178 states and 1343 transitions. [2020-09-24 15:46:26,936 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 15:46:26,936 INFO L276 IsEmpty]: Start isEmpty. Operand 1178 states and 1343 transitions. [2020-09-24 15:46:26,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2020-09-24 15:46:26,941 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:46:26,941 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:46:26,941 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 15:46:26,942 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:46:26,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:46:26,942 INFO L82 PathProgramCache]: Analyzing trace with hash 382936000, now seen corresponding path program 1 times [2020-09-24 15:46:26,942 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:46:26,942 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [786956244] [2020-09-24 15:46:26,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:46:26,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:27,028 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:27,028 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:27,029 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:27,029 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:27,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 257 [2020-09-24 15:46:27,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:27,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-24 15:46:27,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:27,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 15:46:27,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 15:46:27,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-09-24 15:46:27,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:27,318 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:46:27,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:46:27,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:27,407 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:27,407 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:27,408 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:27,408 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:27,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 15:46:27,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:27,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:27,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:27,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:27,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:27,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 15:46:27,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:27,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 15:46:27,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:27,452 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:27,452 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:27,453 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:27,453 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:27,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:27,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:27,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:27,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:27,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:27,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:27,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:46:27,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:27,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 15:46:27,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:27,458 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:27,458 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:27,458 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:27,459 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:27,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:27,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:27,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:27,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:27,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:27,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:27,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:46:27,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:27,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 15:46:27,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:27,464 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:27,464 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:27,464 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:27,464 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:27,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:27,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:27,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:27,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:27,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:27,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:27,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:46:27,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:27,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 15:46:27,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:27,470 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:27,470 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:27,470 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:27,470 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:27,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:27,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:27,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:27,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:27,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:27,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:27,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:46:27,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:27,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 15:46:27,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:27,486 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:27,486 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:27,486 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:27,486 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:27,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:46:27,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:27,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:27,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:27,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:27,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:27,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 15:46:27,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:27,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 15:46:27,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:27,504 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:27,504 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:27,504 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:27,504 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:27,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 15:46:27,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:27,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:27,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:27,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:27,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:27,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 15:46:27,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:27,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 15:46:27,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:27,520 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:27,520 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:27,520 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:27,520 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:27,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:46:27,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:27,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:27,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:27,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:27,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:27,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 15:46:27,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:27,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 15:46:27,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:27,538 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:27,539 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:27,539 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:27,539 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:27,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-24 15:46:27,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:27,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:27,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:27,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:27,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-09-24 15:46:27,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 15:46:27,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:27,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:46:27,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:27,567 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:27,567 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:27,567 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:27,568 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:27,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 15:46:27,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:27,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:46:27,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:27,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:27,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:27,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-24 15:46:27,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:27,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:46:27,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:27,595 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:27,595 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:27,595 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:27,595 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:27,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 15:46:27,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:27,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:46:27,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:27,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:27,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:27,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 15:46:27,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:27,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:46:27,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:27,615 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:27,616 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:27,616 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:27,616 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:27,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 15:46:27,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:27,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:27,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:27,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:27,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:27,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:46:27,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:27,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:46:27,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:27,635 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:27,635 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:27,635 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:27,635 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:27,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:46:27,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:27,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:27,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:27,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:27,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:27,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 15:46:27,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:27,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 15:46:27,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:27,652 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:27,652 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:27,652 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:27,652 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:27,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:46:27,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:27,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:27,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:27,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:27,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:27,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 15:46:27,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:27,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-09-24 15:46:27,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:27,664 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:27,664 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:27,664 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:27,665 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:27,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:27,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:27,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:46:27,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:27,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:27,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:46:27,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:27,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:27,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2020-09-24 15:46:27,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:27,669 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:27,669 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:27,670 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:27,670 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:27,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:27,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:27,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:27,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:27,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:27,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:46:27,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:27,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:27,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:46:27,719 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [786956244] [2020-09-24 15:46:27,719 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:46:27,719 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 15:46:27,720 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803689195] [2020-09-24 15:46:27,720 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 15:46:27,720 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:46:27,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 15:46:27,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-24 15:46:27,721 INFO L87 Difference]: Start difference. First operand 1178 states and 1343 transitions. Second operand 9 states. [2020-09-24 15:46:28,321 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:46:29,009 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:46:34,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:46:34,241 INFO L93 Difference]: Finished difference Result 4133 states and 5307 transitions. [2020-09-24 15:46:34,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-09-24 15:46:34,242 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 210 [2020-09-24 15:46:34,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:46:34,260 INFO L225 Difference]: With dead ends: 4133 [2020-09-24 15:46:34,260 INFO L226 Difference]: Without dead ends: 3070 [2020-09-24 15:46:34,265 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 44 SyntacticMatches, 4 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 518 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=329, Invalid=1231, Unknown=0, NotChecked=0, Total=1560 [2020-09-24 15:46:34,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3070 states. [2020-09-24 15:46:34,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3070 to 2194. [2020-09-24 15:46:34,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2194 states. [2020-09-24 15:46:34,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2194 states to 2194 states and 2529 transitions. [2020-09-24 15:46:34,568 INFO L78 Accepts]: Start accepts. Automaton has 2194 states and 2529 transitions. Word has length 210 [2020-09-24 15:46:34,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:46:34,569 INFO L479 AbstractCegarLoop]: Abstraction has 2194 states and 2529 transitions. [2020-09-24 15:46:34,569 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 15:46:34,569 INFO L276 IsEmpty]: Start isEmpty. Operand 2194 states and 2529 transitions. [2020-09-24 15:46:34,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2020-09-24 15:46:34,574 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:46:34,574 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:46:34,574 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 15:46:34,575 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:46:34,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:46:34,575 INFO L82 PathProgramCache]: Analyzing trace with hash 245237427, now seen corresponding path program 1 times [2020-09-24 15:46:34,575 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:46:34,575 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2009341554] [2020-09-24 15:46:34,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:46:34,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:34,677 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:34,677 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:34,678 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:34,678 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:34,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 264 [2020-09-24 15:46:34,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:34,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 15:46:34,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:34,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 15:46:34,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-09-24 15:46:34,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-09-24 15:46:34,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:35,039 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:46:35,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:46:35,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:35,048 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:35,048 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:35,049 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:35,049 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:35,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 15:46:35,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:35,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:35,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:35,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:35,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:35,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:35,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:35,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 15:46:35,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:35,086 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:35,086 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:35,087 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:35,087 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:35,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:35,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:35,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:35,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:35,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:35,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:35,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:35,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:35,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 15:46:35,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:35,092 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:35,092 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:35,092 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:35,093 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:35,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:35,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:35,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:46:35,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:35,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:35,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:35,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:35,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:35,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 15:46:35,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:35,097 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:35,097 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:35,097 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:35,097 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:35,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:35,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:35,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:35,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:35,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:35,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:35,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:35,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:35,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 15:46:35,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:35,101 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:35,102 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:35,102 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:35,102 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:35,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:35,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:35,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:35,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:35,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:35,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:35,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:35,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:35,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 15:46:35,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:35,127 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:35,127 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:35,127 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:35,127 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:35,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:46:35,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:35,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:35,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:35,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:35,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:35,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 15:46:35,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:35,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 15:46:35,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:35,143 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:35,143 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:35,143 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:35,143 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:35,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 15:46:35,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:35,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:35,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:35,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:35,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:35,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 15:46:35,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:35,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 15:46:35,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:35,160 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:35,160 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:35,160 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:35,160 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:35,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 15:46:35,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:35,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:35,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:35,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:35,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:35,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 15:46:35,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:35,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-24 15:46:35,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:35,179 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:35,180 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:35,180 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:35,180 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:35,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:46:35,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:35,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:35,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:35,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:35,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:35,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 15:46:35,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:35,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-09-24 15:46:35,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:35,206 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:35,206 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:35,207 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:35,207 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:35,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-24 15:46:35,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:35,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:46:35,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:35,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:35,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:35,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-24 15:46:35,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:35,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:46:35,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:35,216 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:35,217 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:35,217 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:35,217 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:35,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 15:46:35,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:35,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:35,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:35,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:35,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:35,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:35,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:35,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:46:35,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:35,227 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:35,227 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:35,227 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:35,227 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:35,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 15:46:35,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:35,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:35,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:35,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:35,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:35,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:35,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:35,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:46:35,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:35,234 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:35,235 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:35,235 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:35,235 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:35,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 15:46:35,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:35,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:35,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:35,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:35,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:35,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:35,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:35,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:46:35,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:35,241 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:35,241 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:35,241 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:35,242 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:35,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:46:35,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:35,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:35,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:35,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:35,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:35,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:35,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:35,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 15:46:35,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:35,247 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:35,247 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:35,248 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:35,248 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:35,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:46:35,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:35,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:35,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:35,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:35,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:35,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:35,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:35,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-09-24 15:46:35,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:35,256 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:35,256 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:35,256 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:35,256 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:35,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:35,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:35,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:35,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:35,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:35,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:35,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:46:35,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:35,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2020-09-24 15:46:35,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:35,262 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:35,263 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:35,263 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:35,263 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:35,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:35,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:35,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:35,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:35,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:35,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:35,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:46:35,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:35,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:46:35,319 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2009341554] [2020-09-24 15:46:35,320 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:46:35,320 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 15:46:35,320 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706094448] [2020-09-24 15:46:35,321 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 15:46:35,321 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:46:35,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 15:46:35,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-09-24 15:46:35,321 INFO L87 Difference]: Start difference. First operand 2194 states and 2529 transitions. Second operand 9 states. [2020-09-24 15:46:35,969 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:46:40,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:46:40,384 INFO L93 Difference]: Finished difference Result 5080 states and 6658 transitions. [2020-09-24 15:46:40,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-09-24 15:46:40,385 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 215 [2020-09-24 15:46:40,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:46:40,415 INFO L225 Difference]: With dead ends: 5080 [2020-09-24 15:46:40,416 INFO L226 Difference]: Without dead ends: 5077 [2020-09-24 15:46:40,419 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 42 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 488 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=367, Invalid=1273, Unknown=0, NotChecked=0, Total=1640 [2020-09-24 15:46:40,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5077 states. [2020-09-24 15:46:41,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5077 to 3651. [2020-09-24 15:46:41,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3651 states. [2020-09-24 15:46:41,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3651 states to 3651 states and 4327 transitions. [2020-09-24 15:46:41,085 INFO L78 Accepts]: Start accepts. Automaton has 3651 states and 4327 transitions. Word has length 215 [2020-09-24 15:46:41,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:46:41,086 INFO L479 AbstractCegarLoop]: Abstraction has 3651 states and 4327 transitions. [2020-09-24 15:46:41,086 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 15:46:41,086 INFO L276 IsEmpty]: Start isEmpty. Operand 3651 states and 4327 transitions. [2020-09-24 15:46:41,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2020-09-24 15:46:41,095 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:46:41,096 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:46:41,096 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-24 15:46:41,097 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:46:41,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:46:41,097 INFO L82 PathProgramCache]: Analyzing trace with hash -33293103, now seen corresponding path program 1 times [2020-09-24 15:46:41,097 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:46:41,098 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2094847929] [2020-09-24 15:46:41,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:46:41,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:41,168 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:41,168 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:41,168 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:41,169 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:41,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 334 [2020-09-24 15:46:41,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:41,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:46:41,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:41,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:41,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 172 [2020-09-24 15:46:41,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:46:41,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0