/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product42.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 17:58:59,780 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 17:58:59,784 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 17:58:59,834 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 17:58:59,836 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 17:58:59,846 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 17:58:59,849 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 17:58:59,852 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 17:58:59,855 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 17:58:59,859 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 17:58:59,860 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 17:58:59,862 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 17:58:59,862 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 17:58:59,865 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 17:58:59,869 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 17:58:59,871 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 17:58:59,873 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 17:58:59,874 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 17:58:59,876 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 17:58:59,886 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 17:58:59,889 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 17:58:59,890 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 17:58:59,891 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 17:58:59,892 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 17:58:59,895 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 17:58:59,896 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 17:58:59,896 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 17:58:59,899 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 17:58:59,900 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 17:58:59,901 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 17:58:59,901 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 17:58:59,902 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 17:58:59,903 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 17:58:59,904 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 17:58:59,905 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 17:58:59,905 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 17:58:59,906 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 17:58:59,906 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 17:58:59,907 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 17:58:59,908 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 17:58:59,909 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 17:58:59,910 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 17:58:59,939 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 17:58:59,939 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 17:58:59,941 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 17:58:59,941 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 17:58:59,941 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 17:58:59,942 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 17:58:59,942 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 17:58:59,942 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 17:58:59,942 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 17:58:59,942 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 17:58:59,943 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 17:58:59,943 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 17:58:59,943 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 17:58:59,943 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 17:58:59,943 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 17:58:59,944 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 17:58:59,944 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 17:58:59,944 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 17:58:59,944 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 17:58:59,945 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 17:58:59,945 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 17:58:59,945 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 17:58:59,945 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 17:58:59,945 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 17:58:59,946 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 17:58:59,946 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 17:58:59,946 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 17:58:59,946 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 17:58:59,947 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 17:58:59,947 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-24 17:59:00,391 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 17:59:00,408 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 17:59:00,412 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 17:59:00,414 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 17:59:00,414 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 17:59:00,416 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product42.cil.c [2020-09-24 17:59:00,497 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0db0c0a9d/975da976250f4a79aeff0d8d2a3ae3de/FLAGff5e6c2c3 [2020-09-24 17:59:01,125 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 17:59:01,126 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product42.cil.c [2020-09-24 17:59:01,140 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0db0c0a9d/975da976250f4a79aeff0d8d2a3ae3de/FLAGff5e6c2c3 [2020-09-24 17:59:01,343 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0db0c0a9d/975da976250f4a79aeff0d8d2a3ae3de [2020-09-24 17:59:01,357 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 17:59:01,362 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 17:59:01,363 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 17:59:01,363 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 17:59:01,367 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 17:59:01,368 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:59:01" (1/1) ... [2020-09-24 17:59:01,372 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11967da3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:59:01, skipping insertion in model container [2020-09-24 17:59:01,372 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:59:01" (1/1) ... [2020-09-24 17:59:01,381 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 17:59:01,430 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 17:59:01,775 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 17:59:01,790 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 17:59:02,052 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 17:59:02,093 INFO L208 MainTranslator]: Completed translation [2020-09-24 17:59:02,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:59:02 WrapperNode [2020-09-24 17:59:02,094 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 17:59:02,094 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 17:59:02,094 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 17:59:02,095 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 17:59:02,109 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:59:02" (1/1) ... [2020-09-24 17:59:02,109 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:59:02" (1/1) ... [2020-09-24 17:59:02,130 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:59:02" (1/1) ... [2020-09-24 17:59:02,130 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:59:02" (1/1) ... [2020-09-24 17:59:02,164 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:59:02" (1/1) ... [2020-09-24 17:59:02,176 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:59:02" (1/1) ... [2020-09-24 17:59:02,184 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:59:02" (1/1) ... [2020-09-24 17:59:02,201 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 17:59:02,201 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 17:59:02,202 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 17:59:02,203 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 17:59:02,207 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:59:02" (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 17:59:02,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 17:59:02,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 17:59:02,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 17:59:02,302 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 17:59:02,302 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 17:59:02,302 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 17:59:02,302 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 17:59:02,303 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 17:59:02,304 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 17:59:02,304 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 17:59:02,304 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 17:59:02,304 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 17:59:02,304 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 17:59:02,305 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-24 17:59:02,305 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 17:59:02,306 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 17:59:02,306 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 17:59:02,306 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 17:59:02,307 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 17:59:02,307 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 17:59:02,307 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 17:59:02,307 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-24 17:59:02,308 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-24 17:59:02,308 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 17:59:02,309 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 17:59:02,309 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 17:59:02,309 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 17:59:02,309 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 17:59:02,309 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 17:59:02,310 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 17:59:02,310 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 17:59:02,310 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 17:59:02,310 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 17:59:02,310 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 17:59:02,310 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 17:59:02,311 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 17:59:02,311 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 17:59:02,311 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 17:59:02,311 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 17:59:02,311 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 17:59:02,313 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 17:59:02,313 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 17:59:02,314 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 17:59:02,314 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 17:59:02,314 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 17:59:02,314 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 17:59:02,314 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 17:59:02,314 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 17:59:02,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 17:59:02,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 17:59:02,315 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 17:59:02,315 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 17:59:02,316 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 17:59:02,316 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 17:59:02,316 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 17:59:02,316 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 17:59:02,317 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 17:59:02,317 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 17:59:02,317 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 17:59:02,318 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 17:59:02,318 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 17:59:02,318 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 17:59:02,318 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 17:59:02,318 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 17:59:02,318 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 17:59:02,319 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 17:59:02,319 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 17:59:02,319 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 17:59:02,319 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 17:59:02,319 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 17:59:02,320 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 17:59:02,321 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 17:59:02,322 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 17:59:02,322 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 17:59:02,322 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-24 17:59:02,322 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 17:59:02,322 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 17:59:02,323 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 17:59:02,323 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-24 17:59:02,323 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 17:59:02,323 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 17:59:02,323 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-24 17:59:02,323 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 17:59:02,324 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 17:59:02,324 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 17:59:02,325 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 17:59:02,325 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 17:59:02,325 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 17:59:02,325 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 17:59:02,325 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 17:59:02,326 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 17:59:02,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 17:59:02,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 17:59:02,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 17:59:03,611 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 17:59:03,611 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 17:59:03,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:59:03 BoogieIcfgContainer [2020-09-24 17:59:03,626 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 17:59:03,628 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 17:59:03,628 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 17:59:03,632 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 17:59:03,632 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 05:59:01" (1/3) ... [2020-09-24 17:59:03,633 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2870aa95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:59:03, skipping insertion in model container [2020-09-24 17:59:03,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:59:02" (2/3) ... [2020-09-24 17:59:03,634 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2870aa95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:59:03, skipping insertion in model container [2020-09-24 17:59:03,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:59:03" (3/3) ... [2020-09-24 17:59:03,636 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product42.cil.c [2020-09-24 17:59:03,648 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 17:59:03,660 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 17:59:03,683 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 17:59:03,716 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 17:59:03,716 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 17:59:03,717 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 17:59:03,717 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 17:59:03,717 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 17:59:03,717 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 17:59:03,717 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 17:59:03,717 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 17:59:03,743 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states. [2020-09-24 17:59:03,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-24 17:59:03,761 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:59:03,763 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 17:59:03,763 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:59:03,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:59:03,771 INFO L82 PathProgramCache]: Analyzing trace with hash 769335885, now seen corresponding path program 1 times [2020-09-24 17:59:03,783 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:59:03,783 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1088692208] [2020-09-24 17:59:03,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:59:04,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:04,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:04,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:06,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:07,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:07,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:09,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:09,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-24 17:59:09,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 17:59:09,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-09-24 17:59:09,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:09,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:09,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-24 17:59:09,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:09,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 17:59:09,770 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 17:59:09,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:59:09,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:09,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:09,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:09,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 17:59:09,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:09,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 135 [2020-09-24 17:59:09,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:09,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:09,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:09,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:09,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:59:10,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 17:59:10,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:10,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:10,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:10,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:59:10,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:10,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 17:59:10,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:10,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:10,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:10,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:10,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:10,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 17:59:10,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:10,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:10,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:10,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:59:10,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:10,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:59:10,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:10,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:10,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:10,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:10,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:59:10,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 17:59:10,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:10,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:10,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:10,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:59:10,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:10,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-24 17:59:10,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:10,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:10,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:10,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:10,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:59:10,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 17:59:10,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:10,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:10,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:10,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:59:10,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:10,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:59:10,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:10,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:10,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:10,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:10,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:59:10,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 17:59:10,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:10,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:10,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:10,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 17:59:10,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:10,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:59:10,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:10,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:10,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:10,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:10,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:10,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 17:59:10,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:10,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:10,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:10,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:59:10,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:10,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:59:10,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:10,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:10,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:59:10,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:10,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:59:10,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 17:59:10,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:10,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:10,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:10,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:59:10,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:10,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:59:10,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:10,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:10,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:59:10,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:10,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 17:59:10,180 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 17:59:10,181 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1088692208] [2020-09-24 17:59:10,184 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:59:10,185 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 17:59:10,186 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535817779] [2020-09-24 17:59:10,195 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 17:59:10,195 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:59:10,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 17:59:10,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-24 17:59:10,218 INFO L87 Difference]: Start difference. First operand 308 states. Second operand 4 states. [2020-09-24 17:59:11,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:59:11,815 INFO L93 Difference]: Finished difference Result 478 states and 564 transitions. [2020-09-24 17:59:11,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-24 17:59:11,817 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2020-09-24 17:59:11,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:59:11,838 INFO L225 Difference]: With dead ends: 478 [2020-09-24 17:59:11,838 INFO L226 Difference]: Without dead ends: 306 [2020-09-24 17:59:11,844 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-24 17:59:11,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2020-09-24 17:59:11,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 257. [2020-09-24 17:59:11,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 257 states. [2020-09-24 17:59:11,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 278 transitions. [2020-09-24 17:59:11,956 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 278 transitions. Word has length 148 [2020-09-24 17:59:11,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:59:11,957 INFO L479 AbstractCegarLoop]: Abstraction has 257 states and 278 transitions. [2020-09-24 17:59:11,957 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 17:59:11,957 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 278 transitions. [2020-09-24 17:59:11,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-09-24 17:59:11,961 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:59:11,962 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 17:59:11,962 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 17:59:11,962 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:59:11,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:59:11,963 INFO L82 PathProgramCache]: Analyzing trace with hash 1712592355, now seen corresponding path program 1 times [2020-09-24 17:59:11,963 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:59:11,963 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1035937100] [2020-09-24 17:59:11,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:59:12,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:12,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:12,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:13,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:14,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:15,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:16,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:17,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:17,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-09-24 17:59:17,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 17:59:17,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-24 17:59:17,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:17,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:59:17,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-24 17:59:17,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 17:59:17,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:17,312 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 17:59:17,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:59:17,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:17,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:17,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:17,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 17:59:17,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:17,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-09-24 17:59:17,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:17,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:17,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:17,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:17,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:17,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 17:59:17,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:17,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:17,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:17,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:59:17,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:17,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:59:17,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:17,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:17,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:17,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:17,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:17,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 17:59:17,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:17,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:17,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:17,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:59:17,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:17,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:59:17,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:17,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:17,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:17,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:17,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:17,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 17:59:17,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:17,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:17,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:17,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:59:17,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:17,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 17:59:17,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:17,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:17,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:17,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:17,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:17,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 17:59:17,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:17,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:17,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:17,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:59:17,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:17,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:59:17,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:17,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:17,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:17,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:17,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:17,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 17:59:17,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:17,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:17,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:17,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 17:59:17,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:17,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:59:17,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:17,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:17,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:17,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:17,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:17,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-24 17:59:17,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:17,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:17,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:17,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:59:17,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:17,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:59:17,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:17,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:17,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:59:17,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:17,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:59:17,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 17:59:17,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:17,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:17,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:17,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:59:17,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:17,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:59:17,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:17,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:17,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:59:17,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:17,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:17,571 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 17:59:17,572 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1035937100] [2020-09-24 17:59:17,572 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:59:17,572 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 17:59:17,573 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142897860] [2020-09-24 17:59:17,575 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 17:59:17,575 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:59:17,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 17:59:17,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 17:59:17,576 INFO L87 Difference]: Start difference. First operand 257 states and 278 transitions. Second operand 5 states. [2020-09-24 17:59:18,238 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 17:59:19,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:59:19,296 INFO L93 Difference]: Finished difference Result 403 states and 455 transitions. [2020-09-24 17:59:19,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 17:59:19,297 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 149 [2020-09-24 17:59:19,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:59:19,302 INFO L225 Difference]: With dead ends: 403 [2020-09-24 17:59:19,302 INFO L226 Difference]: Without dead ends: 295 [2020-09-24 17:59:19,304 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 17:59:19,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2020-09-24 17:59:19,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 247. [2020-09-24 17:59:19,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 247 states. [2020-09-24 17:59:19,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 265 transitions. [2020-09-24 17:59:19,350 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 265 transitions. Word has length 149 [2020-09-24 17:59:19,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:59:19,351 INFO L479 AbstractCegarLoop]: Abstraction has 247 states and 265 transitions. [2020-09-24 17:59:19,351 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 17:59:19,351 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 265 transitions. [2020-09-24 17:59:19,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-09-24 17:59:19,354 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:59:19,354 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 17:59:19,354 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 17:59:19,354 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:59:19,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:59:19,355 INFO L82 PathProgramCache]: Analyzing trace with hash -1803359450, now seen corresponding path program 1 times [2020-09-24 17:59:19,355 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:59:19,355 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1643459] [2020-09-24 17:59:19,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:59:19,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:19,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:19,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:20,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:20,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:22,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:24,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:24,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 195 [2020-09-24 17:59:24,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 17:59:24,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-09-24 17:59:24,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:24,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:59:24,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-24 17:59:24,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 17:59:24,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:24,811 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 17:59:24,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:59:24,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:24,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:24,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:24,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 17:59:24,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:24,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-09-24 17:59:24,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:24,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:24,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:24,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:24,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:24,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 17:59:24,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:24,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:24,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:24,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:59:24,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:24,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:59:24,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:24,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:24,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:24,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:24,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:24,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 17:59:24,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:24,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:24,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:24,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:59:24,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:24,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:59:24,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:24,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:24,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:24,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:24,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:24,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 17:59:24,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:24,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:24,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:24,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:59:24,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:24,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 17:59:24,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:24,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:24,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:24,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:24,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:24,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 17:59:24,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:24,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:24,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:24,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:59:24,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:25,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 17:59:25,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:25,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:25,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:25,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:25,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:25,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 17:59:25,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:25,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:25,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:25,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 17:59:25,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:25,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:59:25,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:25,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:25,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:25,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:25,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:25,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 17:59:25,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:25,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:25,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:25,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 17:59:25,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:25,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:59:25,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:25,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:59:25,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:25,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 17:59:25,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:25,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-24 17:59:25,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:25,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:25,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:25,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:59:25,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:25,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 17:59:25,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:25,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:25,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:59:25,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:25,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:25,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-24 17:59:25,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:25,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:25,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:25,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:59:25,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:25,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:59:25,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:25,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:25,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:59:25,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:25,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:25,087 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 17:59:25,088 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1643459] [2020-09-24 17:59:25,088 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:59:25,089 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 17:59:25,089 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713176807] [2020-09-24 17:59:25,091 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 17:59:25,091 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:59:25,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 17:59:25,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 17:59:25,093 INFO L87 Difference]: Start difference. First operand 247 states and 265 transitions. Second operand 6 states. [2020-09-24 17:59:25,703 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:59:26,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:59:26,739 INFO L93 Difference]: Finished difference Result 450 states and 520 transitions. [2020-09-24 17:59:26,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 17:59:26,739 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 162 [2020-09-24 17:59:26,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:59:26,743 INFO L225 Difference]: With dead ends: 450 [2020-09-24 17:59:26,744 INFO L226 Difference]: Without dead ends: 318 [2020-09-24 17:59:26,749 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-24 17:59:26,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2020-09-24 17:59:26,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 247. [2020-09-24 17:59:26,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 247 states. [2020-09-24 17:59:26,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 264 transitions. [2020-09-24 17:59:26,794 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 264 transitions. Word has length 162 [2020-09-24 17:59:26,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:59:26,795 INFO L479 AbstractCegarLoop]: Abstraction has 247 states and 264 transitions. [2020-09-24 17:59:26,795 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 17:59:26,795 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 264 transitions. [2020-09-24 17:59:26,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-09-24 17:59:26,798 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:59:26,798 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] [2020-09-24 17:59:26,798 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 17:59:26,798 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:59:26,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:59:26,799 INFO L82 PathProgramCache]: Analyzing trace with hash 1365821347, now seen corresponding path program 1 times [2020-09-24 17:59:26,799 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:59:26,799 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1573976491] [2020-09-24 17:59:26,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:59:26,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:26,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:27,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:27,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:28,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:28,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:30,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:31,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:31,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-09-24 17:59:31,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 17:59:31,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-09-24 17:59:31,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:31,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 17:59:31,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 159 [2020-09-24 17:59:31,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 17:59:31,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:59:32,181 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 17:59:32,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:59:32,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:32,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:32,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:32,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 17:59:32,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:32,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-09-24 17:59:32,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:32,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:32,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:32,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:32,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:59:32,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 17:59:32,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:32,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:32,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:32,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:59:32,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:32,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:59:32,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:32,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:32,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:32,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:32,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:32,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 17:59:32,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:32,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:32,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:32,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:59:32,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:32,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:59:32,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:32,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:32,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:32,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:32,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:59:32,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 17:59:32,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:32,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:32,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:32,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:59:32,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:32,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 17:59:32,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:32,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:32,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:32,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:32,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:59:32,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 17:59:32,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:32,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:32,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:32,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:59:32,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:32,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:59:32,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:32,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:32,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:32,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:32,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:59:32,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 17:59:32,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:32,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:32,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:32,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 17:59:32,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:32,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:59:32,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:32,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:32,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:32,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:32,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:59:32,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 17:59:32,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:32,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:32,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:32,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 17:59:32,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:32,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:59:32,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:32,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:32,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:32,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:32,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:59:32,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 17:59:32,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:32,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:32,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:32,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 17:59:32,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:32,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 17:59:32,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:32,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 17:59:32,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 17:59:32,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 17:59:32,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:59:32,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:59:32,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:32,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:32,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:32,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:59:32,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:32,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:59:32,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:32,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:59:32,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:32,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 17:59:32,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:59:32,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-24 17:59:32,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:32,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:32,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:32,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:59:32,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:32,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:59:32,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:32,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:32,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:59:32,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:32,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:59:32,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-24 17:59:32,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:32,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:32,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:32,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:59:32,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:32,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:59:32,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:32,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:32,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:59:32,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:32,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:59:32,532 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 17:59:32,533 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1573976491] [2020-09-24 17:59:32,533 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:59:32,534 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 17:59:32,534 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94966991] [2020-09-24 17:59:32,535 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 17:59:32,535 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:59:32,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 17:59:32,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-24 17:59:32,537 INFO L87 Difference]: Start difference. First operand 247 states and 264 transitions. Second operand 8 states. [2020-09-24 17:59:33,170 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:59:34,754 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 17:59:35,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:59:35,622 INFO L93 Difference]: Finished difference Result 629 states and 750 transitions. [2020-09-24 17:59:35,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-24 17:59:35,623 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 170 [2020-09-24 17:59:35,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:59:35,629 INFO L225 Difference]: With dead ends: 629 [2020-09-24 17:59:35,629 INFO L226 Difference]: Without dead ends: 497 [2020-09-24 17:59:35,630 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=140, Invalid=366, Unknown=0, NotChecked=0, Total=506 [2020-09-24 17:59:35,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2020-09-24 17:59:35,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 356. [2020-09-24 17:59:35,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2020-09-24 17:59:35,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 385 transitions. [2020-09-24 17:59:35,687 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 385 transitions. Word has length 170 [2020-09-24 17:59:35,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:59:35,688 INFO L479 AbstractCegarLoop]: Abstraction has 356 states and 385 transitions. [2020-09-24 17:59:35,688 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 17:59:35,688 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 385 transitions. [2020-09-24 17:59:35,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-09-24 17:59:35,690 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:59:35,691 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] [2020-09-24 17:59:35,691 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 17:59:35,691 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:59:35,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:59:35,691 INFO L82 PathProgramCache]: Analyzing trace with hash -193373180, now seen corresponding path program 1 times [2020-09-24 17:59:35,692 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:59:35,692 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [543403203] [2020-09-24 17:59:35,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:59:35,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:35,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:35,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:37,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:38,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:38,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:39,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:40,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:40,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-09-24 17:59:40,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 17:59:40,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-09-24 17:59:40,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:40,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 17:59:40,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-09-24 17:59:40,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 17:59:40,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:41,040 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 17:59:41,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:59:41,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:41,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:41,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:41,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 17:59:41,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:41,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-09-24 17:59:41,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:41,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:41,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:41,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:41,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:41,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 17:59:41,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:41,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:41,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:41,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:59:41,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:41,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:59:41,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:41,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:41,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:41,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:41,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:41,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 17:59:41,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:41,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:41,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:41,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:59:41,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:41,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:59:41,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:41,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:41,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:41,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:41,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:41,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 17:59:41,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:41,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:41,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:41,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:59:41,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:41,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 17:59:41,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:41,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:41,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:41,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:41,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:41,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 17:59:41,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:41,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:41,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:41,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:59:41,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:41,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:59:41,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:41,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:41,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:41,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:41,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:41,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 17:59:41,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:41,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:41,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:41,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 17:59:41,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:41,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:59:41,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:41,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:41,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:41,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:41,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:41,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 17:59:41,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:41,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:41,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:41,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 17:59:41,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:41,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:59:41,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:41,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:41,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:41,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:41,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:41,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 17:59:41,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:41,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:41,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:41,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:41,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 17:59:41,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 17:59:41,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 146 [2020-09-24 17:59:41,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:41,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 17:59:41,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 17:59:41,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 17:59:41,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:41,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:59:41,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:41,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:41,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:41,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 17:59:41,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:41,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 17:59:41,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:41,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 17:59:41,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 17:59:41,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 17:59:41,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:41,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 17:59:41,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:41,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:41,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:41,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 17:59:41,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:41,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 17:59:41,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:41,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 17:59:41,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:41,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 17:59:41,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:41,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 17:59:41,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:41,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:41,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:41,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:59:41,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:41,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:59:41,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:41,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:41,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-24 17:59:41,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:41,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:41,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-09-24 17:59:41,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:41,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:41,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:41,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:59:41,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:41,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:59:41,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:41,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:41,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:59:41,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:41,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:41,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-24 17:59:41,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:41,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:41,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:41,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:59:41,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:41,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:59:41,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:41,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:41,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:59:41,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:41,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:41,569 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 17:59:41,570 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [543403203] [2020-09-24 17:59:41,570 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:59:41,570 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 17:59:41,570 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545472230] [2020-09-24 17:59:41,571 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 17:59:41,571 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:59:41,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 17:59:41,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-24 17:59:41,572 INFO L87 Difference]: Start difference. First operand 356 states and 385 transitions. Second operand 10 states. [2020-09-24 17:59:42,826 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 17:59:43,132 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 17:59:43,435 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 17:59:43,738 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 17:59:44,038 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 17:59:45,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:59:45,177 INFO L93 Difference]: Finished difference Result 743 states and 885 transitions. [2020-09-24 17:59:45,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 17:59:45,178 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 194 [2020-09-24 17:59:45,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:59:45,183 INFO L225 Difference]: With dead ends: 743 [2020-09-24 17:59:45,183 INFO L226 Difference]: Without dead ends: 502 [2020-09-24 17:59:45,185 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-09-24 17:59:45,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2020-09-24 17:59:45,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 362. [2020-09-24 17:59:45,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 362 states. [2020-09-24 17:59:45,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 391 transitions. [2020-09-24 17:59:45,236 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 391 transitions. Word has length 194 [2020-09-24 17:59:45,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:59:45,236 INFO L479 AbstractCegarLoop]: Abstraction has 362 states and 391 transitions. [2020-09-24 17:59:45,236 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 17:59:45,237 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 391 transitions. [2020-09-24 17:59:45,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-09-24 17:59:45,239 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:59:45,240 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] [2020-09-24 17:59:45,240 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 17:59:45,240 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:59:45,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:59:45,241 INFO L82 PathProgramCache]: Analyzing trace with hash 1228867684, now seen corresponding path program 1 times [2020-09-24 17:59:45,241 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:59:45,241 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [52598627] [2020-09-24 17:59:45,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:59:45,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:45,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:46,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:46,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:46,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:48,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:50,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:50,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-09-24 17:59:50,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 17:59:50,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-09-24 17:59:50,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:50,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 17:59:50,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 165 [2020-09-24 17:59:50,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-09-24 17:59:50,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0