/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --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_spec1_product42.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 05:09:23,768 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 05:09:23,772 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 05:09:23,797 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 05:09:23,798 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 05:09:23,799 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 05:09:23,800 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 05:09:23,802 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 05:09:23,804 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 05:09:23,804 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 05:09:23,805 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 05:09:23,806 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 05:09:23,807 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 05:09:23,808 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 05:09:23,809 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 05:09:23,810 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 05:09:23,811 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 05:09:23,812 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 05:09:23,813 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 05:09:23,815 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 05:09:23,820 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 05:09:23,821 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 05:09:23,823 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 05:09:23,824 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 05:09:23,829 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 05:09:23,829 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 05:09:23,830 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 05:09:23,831 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 05:09:23,831 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 05:09:23,834 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 05:09:23,834 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 05:09:23,835 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 05:09:23,836 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 05:09:23,836 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 05:09:23,837 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 05:09:23,837 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 05:09:23,839 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 05:09:23,839 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 05:09:23,840 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 05:09:23,841 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 05:09:23,842 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 05:09:23,843 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 [2020-09-25 05:09:23,898 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 05:09:23,899 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 05:09:23,902 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 05:09:23,903 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 05:09:23,903 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 05:09:23,903 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 05:09:23,903 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 05:09:23,904 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 05:09:23,904 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 05:09:23,904 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 05:09:23,904 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 05:09:23,904 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 05:09:23,904 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 05:09:23,906 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 05:09:23,906 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 05:09:23,906 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 05:09:23,906 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 05:09:23,906 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 05:09:23,907 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 05:09:23,907 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 05:09:23,907 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 05:09:23,907 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 05:09:23,908 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 05:09:23,908 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 05:09:23,908 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 05:09:23,909 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 05:09:23,909 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 05:09:23,909 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 05:09:23,909 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 05:09:23,909 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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; [2020-09-25 05:09:24,360 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 05:09:24,377 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 05:09:24,381 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 05:09:24,383 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 05:09:24,384 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 05:09:24,385 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product42.cil.c [2020-09-25 05:09:24,479 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2121d0c1a/65ddf394fd1c4f57b5056dc30660c9df/FLAGdb8dcbc25 [2020-09-25 05:09:25,125 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 05:09:25,126 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product42.cil.c [2020-09-25 05:09:25,142 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2121d0c1a/65ddf394fd1c4f57b5056dc30660c9df/FLAGdb8dcbc25 [2020-09-25 05:09:25,340 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2121d0c1a/65ddf394fd1c4f57b5056dc30660c9df [2020-09-25 05:09:25,354 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 05:09:25,360 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 05:09:25,362 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 05:09:25,362 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 05:09:25,366 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 05:09:25,367 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:09:25" (1/1) ... [2020-09-25 05:09:25,371 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4365ba2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:09:25, skipping insertion in model container [2020-09-25 05:09:25,371 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:09:25" (1/1) ... [2020-09-25 05:09:25,380 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 05:09:25,460 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 05:09:25,817 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:09:25,841 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 05:09:26,012 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:09:26,057 INFO L208 MainTranslator]: Completed translation [2020-09-25 05:09:26,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:09:26 WrapperNode [2020-09-25 05:09:26,058 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 05:09:26,059 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 05:09:26,060 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 05:09:26,060 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 05:09:26,075 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:09:26" (1/1) ... [2020-09-25 05:09:26,076 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:09:26" (1/1) ... [2020-09-25 05:09:26,096 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:09:26" (1/1) ... [2020-09-25 05:09:26,096 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:09:26" (1/1) ... [2020-09-25 05:09:26,128 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:09:26" (1/1) ... [2020-09-25 05:09:26,139 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:09:26" (1/1) ... [2020-09-25 05:09:26,144 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:09:26" (1/1) ... [2020-09-25 05:09:26,152 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 05:09:26,153 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 05:09:26,153 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 05:09:26,153 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 05:09:26,154 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:09:26" (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 [2020-09-25 05:09:26,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 05:09:26,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 05:09:26,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 05:09:26,234 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 05:09:26,234 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 05:09:26,234 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 05:09:26,234 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 05:09:26,235 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 05:09:26,235 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 05:09:26,235 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 05:09:26,235 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 05:09:26,235 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 05:09:26,236 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 05:09:26,236 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 05:09:26,236 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 05:09:26,236 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 05:09:26,236 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 05:09:26,237 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 05:09:26,237 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 05:09:26,237 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 05:09:26,237 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-25 05:09:26,238 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 05:09:26,238 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 05:09:26,238 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 05:09:26,238 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 05:09:26,238 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 05:09:26,239 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 05:09:26,239 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 05:09:26,239 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 05:09:26,239 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 05:09:26,239 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 05:09:26,239 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 05:09:26,240 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 05:09:26,240 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 05:09:26,240 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 05:09:26,240 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 05:09:26,240 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 05:09:26,240 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 05:09:26,241 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 05:09:26,241 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 05:09:26,241 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 05:09:26,241 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 05:09:26,241 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 05:09:26,242 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 05:09:26,242 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 05:09:26,242 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 05:09:26,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 05:09:26,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 05:09:26,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 05:09:26,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 05:09:26,243 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 05:09:26,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 05:09:26,243 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 05:09:26,243 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 05:09:26,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 05:09:26,244 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 05:09:26,244 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 05:09:26,244 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 05:09:26,244 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 05:09:26,244 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 05:09:26,244 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 05:09:26,245 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 05:09:26,245 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 05:09:26,245 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 05:09:26,245 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 05:09:26,245 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 05:09:26,245 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 05:09:26,245 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 05:09:26,246 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 05:09:26,246 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 05:09:26,246 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 05:09:26,246 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 05:09:26,246 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 05:09:26,246 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 05:09:26,247 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 05:09:26,247 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 05:09:26,247 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 05:09:26,247 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 05:09:26,247 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-25 05:09:26,248 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 05:09:26,248 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 05:09:26,248 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 05:09:26,248 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 05:09:26,248 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 05:09:26,248 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 05:09:26,248 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 05:09:26,249 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 05:09:26,249 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 05:09:26,249 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 05:09:26,249 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 05:09:26,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 05:09:26,249 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 05:09:27,501 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 05:09:27,502 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 05:09:27,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:09:27 BoogieIcfgContainer [2020-09-25 05:09:27,511 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 05:09:27,512 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 05:09:27,512 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 05:09:27,516 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 05:09:27,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 05:09:25" (1/3) ... [2020-09-25 05:09:27,517 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@116300d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:09:27, skipping insertion in model container [2020-09-25 05:09:27,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:09:26" (2/3) ... [2020-09-25 05:09:27,518 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@116300d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:09:27, skipping insertion in model container [2020-09-25 05:09:27,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:09:27" (3/3) ... [2020-09-25 05:09:27,520 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product42.cil.c [2020-09-25 05:09:27,532 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 05:09:27,544 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 05:09:27,567 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 05:09:27,609 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 05:09:27,610 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 05:09:27,610 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 05:09:27,610 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 05:09:27,610 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 05:09:27,610 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 05:09:27,611 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 05:09:27,611 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 05:09:27,641 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states. [2020-09-25 05:09:27,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 05:09:27,659 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:09:27,660 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] [2020-09-25 05:09:27,661 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:09:27,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:09:27,669 INFO L82 PathProgramCache]: Analyzing trace with hash -2111431698, now seen corresponding path program 1 times [2020-09-25 05:09:27,680 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:09:27,680 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [831655267] [2020-09-25 05:09:27,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:09:28,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:28,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:28,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:29,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:30,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:33,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:33,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 05:09:33,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 05:09:33,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-09-25 05:09:33,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:33,064 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:33,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:33,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 05:09:33,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:33,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 05:09:33,421 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 05:09:33,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:09:33,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:33,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:33,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:33,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 05:09:33,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:33,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-09-25 05:09:33,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:33,547 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:33,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:33,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:33,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:33,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:33,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 05:09:33,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:33,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:33,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:33,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:09:33,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:33,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:09:33,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:33,617 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:33,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:33,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:33,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:33,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:33,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 05:09:33,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:33,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:33,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:33,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:09:33,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:33,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:09:33,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:33,625 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:33,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:33,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:33,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:33,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:33,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 05:09:33,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:33,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:33,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:33,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:09:33,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:33,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:09:33,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:33,662 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:33,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:33,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:33,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:33,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:33,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 05:09:33,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:33,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:33,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:33,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:09:33,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:33,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:09:33,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:33,670 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:33,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:33,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:33,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:33,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:33,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 05:09:33,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:33,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:33,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:33,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:09:33,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:33,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:09:33,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:33,678 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:33,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:33,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:09:33,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:33,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:33,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 05:09:33,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:33,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:33,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:33,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:09:33,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:33,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:09:33,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:33,686 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:33,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:33,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:09:33,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:33,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:33,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:09:33,717 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [831655267] [2020-09-25 05:09:33,719 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:09:33,719 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 05:09:33,720 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245843314] [2020-09-25 05:09:33,727 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 05:09:33,727 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:09:33,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 05:09:33,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 05:09:33,752 INFO L87 Difference]: Start difference. First operand 299 states. Second operand 3 states. [2020-09-25 05:09:35,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:09:35,060 INFO L93 Difference]: Finished difference Result 464 states and 551 transitions. [2020-09-25 05:09:35,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 05:09:35,064 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-25 05:09:35,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:09:35,091 INFO L225 Difference]: With dead ends: 464 [2020-09-25 05:09:35,091 INFO L226 Difference]: Without dead ends: 290 [2020-09-25 05:09:35,099 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 05:09:35,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2020-09-25 05:09:35,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 248. [2020-09-25 05:09:35,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 248 states. [2020-09-25 05:09:35,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 268 transitions. [2020-09-25 05:09:35,201 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 268 transitions. Word has length 142 [2020-09-25 05:09:35,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:09:35,202 INFO L479 AbstractCegarLoop]: Abstraction has 248 states and 268 transitions. [2020-09-25 05:09:35,202 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 05:09:35,202 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 268 transitions. [2020-09-25 05:09:35,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-25 05:09:35,207 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:09:35,207 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] [2020-09-25 05:09:35,208 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 05:09:35,208 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:09:35,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:09:35,209 INFO L82 PathProgramCache]: Analyzing trace with hash -1885599248, now seen corresponding path program 1 times [2020-09-25 05:09:35,209 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:09:35,209 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [512390765] [2020-09-25 05:09:35,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:09:35,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:35,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:35,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:36,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:37,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:38,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:40,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:40,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 05:09:40,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 05:09:40,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-09-25 05:09:40,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:40,284 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:40,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:09:40,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 05:09:40,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 05:09:40,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:40,581 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 05:09:40,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:09:40,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:40,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:40,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:40,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 05:09:40,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:40,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-09-25 05:09:40,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:40,701 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:40,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:40,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:40,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:40,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:40,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 05:09:40,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:40,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:40,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:40,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:09:40,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:40,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:09:40,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:40,743 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:40,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:40,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:40,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:40,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:40,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 05:09:40,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:40,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:40,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:40,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:09:40,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:40,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:09:40,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:40,749 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:40,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:40,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:40,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:40,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:40,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 05:09:40,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:40,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:40,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:40,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:09:40,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:40,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:09:40,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:40,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:40,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:40,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:40,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:40,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:40,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 05:09:40,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:40,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:40,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:40,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:09:40,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:40,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:09:40,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:40,763 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:40,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:40,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:40,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:40,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:40,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 05:09:40,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:40,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:40,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:40,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:09:40,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:40,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:09:40,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:40,770 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:40,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:40,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:09:40,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:40,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:40,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 05:09:40,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:40,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:40,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:40,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:09:40,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:40,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:09:40,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:40,777 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:40,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:40,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:09:40,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:40,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:40,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:09:40,803 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [512390765] [2020-09-25 05:09:40,803 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:09:40,804 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 05:09:40,804 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319700120] [2020-09-25 05:09:40,806 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 05:09:40,807 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:09:40,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 05:09:40,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 05:09:40,808 INFO L87 Difference]: Start difference. First operand 248 states and 268 transitions. Second operand 4 states. [2020-09-25 05:09:41,560 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:09:42,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:09:42,547 INFO L93 Difference]: Finished difference Result 377 states and 422 transitions. [2020-09-25 05:09:42,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 05:09:42,548 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-25 05:09:42,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:09:42,552 INFO L225 Difference]: With dead ends: 377 [2020-09-25 05:09:42,552 INFO L226 Difference]: Without dead ends: 273 [2020-09-25 05:09:42,554 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 05:09:42,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2020-09-25 05:09:42,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 238. [2020-09-25 05:09:42,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2020-09-25 05:09:42,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 255 transitions. [2020-09-25 05:09:42,631 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 255 transitions. Word has length 143 [2020-09-25 05:09:42,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:09:42,632 INFO L479 AbstractCegarLoop]: Abstraction has 238 states and 255 transitions. [2020-09-25 05:09:42,632 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 05:09:42,632 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 255 transitions. [2020-09-25 05:09:42,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-25 05:09:42,646 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:09:42,646 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] [2020-09-25 05:09:42,646 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 05:09:42,647 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:09:42,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:09:42,647 INFO L82 PathProgramCache]: Analyzing trace with hash 2133556188, now seen corresponding path program 1 times [2020-09-25 05:09:42,647 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:09:42,648 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1010795145] [2020-09-25 05:09:42,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:09:42,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:42,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:43,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:43,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:44,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:47,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:47,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 05:09:47,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 05:09:47,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-09-25 05:09:47,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:47,741 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:47,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:09:47,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 05:09:47,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 05:09:47,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:09:48,007 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 05:09:48,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:09:48,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:48,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:48,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:48,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 05:09:48,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:48,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-09-25 05:09:48,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:48,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:48,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:48,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:48,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:48,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:48,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 05:09:48,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:48,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:48,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:48,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:09:48,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:48,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:09:48,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:48,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:48,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:48,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:48,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:48,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:48,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 05:09:48,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:48,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:48,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:48,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:09:48,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:48,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:09:48,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:48,164 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:48,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:48,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:48,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:48,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:48,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 05:09:48,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:48,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:48,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:48,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:09:48,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:48,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:09:48,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:48,172 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:48,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:48,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:48,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:48,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:48,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 05:09:48,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:48,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:48,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:48,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:09:48,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:48,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:09:48,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:48,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:48,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:48,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:48,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:48,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:48,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 05:09:48,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:48,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:48,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:48,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:09:48,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:48,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:09:48,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:48,197 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:48,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:09:48,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:48,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 05:09:48,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:48,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 05:09:48,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:48,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:48,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:48,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:09:48,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:48,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:09:48,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:48,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:48,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:48,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:09:48,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:48,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:09:48,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 05:09:48,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:48,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:48,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:48,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:09:48,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:48,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:09:48,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:48,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:48,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:48,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:09:48,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:48,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:48,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:09:48,240 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1010795145] [2020-09-25 05:09:48,241 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:09:48,241 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 05:09:48,241 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052517420] [2020-09-25 05:09:48,242 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 05:09:48,242 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:09:48,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 05:09:48,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 05:09:48,243 INFO L87 Difference]: Start difference. First operand 238 states and 255 transitions. Second operand 5 states. [2020-09-25 05:09:48,870 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 05:09:49,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:09:49,937 INFO L93 Difference]: Finished difference Result 423 states and 484 transitions. [2020-09-25 05:09:49,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 05:09:49,938 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2020-09-25 05:09:49,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:09:49,943 INFO L225 Difference]: With dead ends: 423 [2020-09-25 05:09:49,943 INFO L226 Difference]: Without dead ends: 295 [2020-09-25 05:09:49,944 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 05:09:49,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2020-09-25 05:09:49,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 238. [2020-09-25 05:09:49,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2020-09-25 05:09:49,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 254 transitions. [2020-09-25 05:09:49,984 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 254 transitions. Word has length 156 [2020-09-25 05:09:49,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:09:49,985 INFO L479 AbstractCegarLoop]: Abstraction has 238 states and 254 transitions. [2020-09-25 05:09:49,985 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 05:09:49,985 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 254 transitions. [2020-09-25 05:09:49,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-09-25 05:09:49,987 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:09:49,988 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] [2020-09-25 05:09:49,988 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 05:09:49,988 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:09:49,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:09:49,989 INFO L82 PathProgramCache]: Analyzing trace with hash -874630023, now seen corresponding path program 1 times [2020-09-25 05:09:49,989 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:09:49,989 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1887780165] [2020-09-25 05:09:49,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:09:50,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:50,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:50,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:51,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:52,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:54,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:55,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:55,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-09-25 05:09:55,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 05:09:55,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-09-25 05:09:55,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:55,057 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:55,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:09:55,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 152 [2020-09-25 05:09:55,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:09:55,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:55,351 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 05:09:55,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:09:55,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:55,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:55,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:55,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 05:09:55,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:55,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-25 05:09:55,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:55,469 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:55,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:55,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:55,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:55,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:55,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 05:09:55,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:55,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:55,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:55,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:09:55,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:55,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:09:55,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:55,515 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:55,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:55,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:55,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:55,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:55,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 05:09:55,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:55,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:55,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:55,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:09:55,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:55,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:09:55,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:55,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:55,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:55,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:55,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:55,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:55,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 05:09:55,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:55,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:55,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:55,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:09:55,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:55,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:09:55,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:55,532 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:55,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:55,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:55,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:55,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:55,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 05:09:55,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:55,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:55,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:55,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:09:55,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:55,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:09:55,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:55,539 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:55,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:55,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:55,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:55,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:09:55,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 05:09:55,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:55,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:55,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:55,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:09:55,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:55,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:09:55,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:55,559 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:55,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:55,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:55,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:55,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:55,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 05:09:55,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:55,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:55,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:55,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 05:09:55,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:55,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 05:09:55,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:55,579 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:55,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:09:55,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 05:09:55,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 05:09:55,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:55,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:09:55,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:55,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:55,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:55,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:09:55,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:55,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:09:55,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:55,600 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:55,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:09:55,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:55,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 05:09:55,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:55,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-25 05:09:55,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:55,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:55,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:55,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:09:55,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:55,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:09:55,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:55,607 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:55,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:55,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:09:55,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:55,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:55,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-09-25 05:09:55,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:55,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:55,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:55,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:09:55,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:55,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:09:55,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:55,614 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:55,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:55,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:09:55,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:55,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:55,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:09:55,644 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1887780165] [2020-09-25 05:09:55,644 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:09:55,644 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 05:09:55,644 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575029477] [2020-09-25 05:09:55,645 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 05:09:55,645 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:09:55,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 05:09:55,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 05:09:55,646 INFO L87 Difference]: Start difference. First operand 238 states and 254 transitions. Second operand 7 states. [2020-09-25 05:09:56,158 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 05:09:57,710 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:09:58,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:09:58,615 INFO L93 Difference]: Finished difference Result 594 states and 701 transitions. [2020-09-25 05:09:58,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 05:09:58,616 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 164 [2020-09-25 05:09:58,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:09:58,621 INFO L225 Difference]: With dead ends: 594 [2020-09-25 05:09:58,621 INFO L226 Difference]: Without dead ends: 466 [2020-09-25 05:09:58,623 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-09-25 05:09:58,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2020-09-25 05:09:58,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 339. [2020-09-25 05:09:58,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 339 states. [2020-09-25 05:09:58,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 365 transitions. [2020-09-25 05:09:58,676 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 365 transitions. Word has length 164 [2020-09-25 05:09:58,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:09:58,676 INFO L479 AbstractCegarLoop]: Abstraction has 339 states and 365 transitions. [2020-09-25 05:09:58,676 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 05:09:58,676 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 365 transitions. [2020-09-25 05:09:58,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2020-09-25 05:09:58,679 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:09:58,679 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] [2020-09-25 05:09:58,679 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 05:09:58,679 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:09:58,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:09:58,680 INFO L82 PathProgramCache]: Analyzing trace with hash -1983899201, now seen corresponding path program 1 times [2020-09-25 05:09:58,680 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:09:58,680 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1184900077] [2020-09-25 05:09:58,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:09:58,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:58,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:58,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:00,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:01,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:01,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:03,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:03,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 227 [2020-09-25 05:10:03,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 05:10:03,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5033 [2020-09-25 05:10:03,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:03,761 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:03,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 05:10:03,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 158 [2020-09-25 05:10:03,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-09-25 05:10:03,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:10:04,093 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 05:10:04,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:10:04,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:04,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:04,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:04,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 05:10:04,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:10:04,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-09-25 05:10:04,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:04,190 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:04,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:10:04,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:10:04,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:10:04,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:10:04,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 05:10:04,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:04,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:04,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:04,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:10:04,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:10:04,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:10:04,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:04,224 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:04,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:10:04,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:10:04,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:10:04,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:10:04,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 05:10:04,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:04,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:04,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:04,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:10:04,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:10:04,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:10:04,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:04,230 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:04,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:10:04,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:10:04,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:10:04,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:10:04,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 05:10:04,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:04,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:04,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:04,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:10:04,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:10:04,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:10:04,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:04,238 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:04,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:10:04,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:10:04,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:10:04,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:10:04,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 05:10:04,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:04,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:04,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:04,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:10:04,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:10:04,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:10:04,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:04,245 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:04,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:10:04,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:10:04,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:10:04,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:10:04,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 05:10:04,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:04,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:04,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:04,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:10:04,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:10:04,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:10:04,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:04,270 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:04,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:10:04,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:10:04,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:10:04,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:10:04,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 05:10:04,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:04,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:04,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:04,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:04,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:04,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 05:10:04,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 05:10:04,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 534 [2020-09-25 05:10:04,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:04,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:04,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:10:04,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:10:04,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 05:10:04,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:10:04,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:10:04,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:04,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:04,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:04,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:04,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 05:10:04,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:10:04,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-09-25 05:10:04,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:04,932 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:04,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:10:04,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:10:04,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 05:10:04,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:10:04,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 05:10:04,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:04,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:04,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:04,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 05:10:04,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:10:04,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:10:04,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:04,944 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:04,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:10:04,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:10:04,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:10:04,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:10:04,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 05:10:04,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:04,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:04,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:04,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:10:04,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:10:04,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:10:04,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:04,952 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:04,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:10:04,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:10:04,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 05:10:04,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 05:10:04,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2020-09-25 05:10:04,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:04,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:04,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:04,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:10:04,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:10:04,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:10:04,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:04,963 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:04,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:10:04,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:10:04,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:10:04,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:10:04,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2020-09-25 05:10:04,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:04,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:04,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:04,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:10:04,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:10:04,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 05:10:04,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:04,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:04,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:10:04,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:10:04,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:10:04,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:10:05,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:10:05,042 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1184900077] [2020-09-25 05:10:05,042 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:10:05,043 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 05:10:05,043 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934562111] [2020-09-25 05:10:05,044 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 05:10:05,044 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:10:05,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 05:10:05,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 05:10:05,046 INFO L87 Difference]: Start difference. First operand 339 states and 365 transitions. Second operand 10 states. [2020-09-25 05:10:05,652 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 05:10:07,379 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 05:10:07,715 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 05:10:08,088 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:10:09,021 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 05:10:09,446 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 05:10:09,768 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 05:10:10,090 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 05:10:10,372 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 05:10:10,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:10:10,647 INFO L93 Difference]: Finished difference Result 469 states and 549 transitions. [2020-09-25 05:10:10,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 05:10:10,648 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 188 [2020-09-25 05:10:10,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:10:10,652 INFO L225 Difference]: With dead ends: 469 [2020-09-25 05:10:10,653 INFO L226 Difference]: Without dead ends: 466 [2020-09-25 05:10:10,654 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-09-25 05:10:10,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2020-09-25 05:10:10,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 339. [2020-09-25 05:10:10,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 339 states. [2020-09-25 05:10:10,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 364 transitions. [2020-09-25 05:10:10,701 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 364 transitions. Word has length 188 [2020-09-25 05:10:10,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:10:10,702 INFO L479 AbstractCegarLoop]: Abstraction has 339 states and 364 transitions. [2020-09-25 05:10:10,702 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 05:10:10,702 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 364 transitions. [2020-09-25 05:10:10,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-09-25 05:10:10,705 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:10:10,705 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:10:10,706 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 05:10:10,706 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:10:10,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:10:10,706 INFO L82 PathProgramCache]: Analyzing trace with hash 1735522133, now seen corresponding path program 1 times [2020-09-25 05:10:10,707 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:10:10,707 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2099413682] [2020-09-25 05:10:10,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:10:10,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:10,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:11,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:11,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking...