/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=0.6 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product42.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 06:21:29,427 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 06:21:29,431 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 06:21:29,476 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 06:21:29,476 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 06:21:29,483 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 06:21:29,485 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 06:21:29,490 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 06:21:29,493 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 06:21:29,495 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 06:21:29,496 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 06:21:29,497 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 06:21:29,497 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 06:21:29,500 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 06:21:29,502 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 06:21:29,504 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 06:21:29,505 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 06:21:29,506 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 06:21:29,508 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 06:21:29,516 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 06:21:29,518 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 06:21:29,519 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 06:21:29,520 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 06:21:29,521 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 06:21:29,538 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 06:21:29,538 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 06:21:29,539 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 06:21:29,540 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 06:21:29,543 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 06:21:29,544 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 06:21:29,544 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 06:21:29,545 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 06:21:29,548 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 06:21:29,549 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 06:21:29,551 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 06:21:29,551 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 06:21:29,551 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 06:21:29,552 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 06:21:29,552 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 06:21:29,553 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 06:21:29,554 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 06:21:29,555 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 06:21:29,599 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 06:21:29,600 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 06:21:29,602 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 06:21:29,602 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 06:21:29,602 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 06:21:29,603 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 06:21:29,603 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 06:21:29,603 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 06:21:29,603 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 06:21:29,604 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 06:21:29,605 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 06:21:29,605 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 06:21:29,605 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 06:21:29,606 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 06:21:29,606 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 06:21:29,606 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 06:21:29,606 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 06:21:29,606 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 06:21:29,607 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 06:21:29,607 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 06:21:29,607 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 06:21:29,607 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:21:29,607 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 06:21:29,608 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 06:21:29,608 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 06:21:29,608 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 06:21:29,608 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 06:21:29,608 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 06:21:29,608 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 06:21:29,609 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=0.6;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=0.6;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=0.6;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=0.6;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=0.6;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=0.6;log-additional-information=true; [2020-09-25 06:21:30,051 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 06:21:30,071 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 06:21:30,076 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 06:21:30,078 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 06:21:30,079 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 06:21:30,080 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product42.cil.c [2020-09-25 06:21:30,173 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c02954fde/5bb3e689cfcc435abbb83e24f6e7ae05/FLAGd3bfc24cc [2020-09-25 06:21:30,840 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 06:21:30,841 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product42.cil.c [2020-09-25 06:21:30,855 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c02954fde/5bb3e689cfcc435abbb83e24f6e7ae05/FLAGd3bfc24cc [2020-09-25 06:21:31,058 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c02954fde/5bb3e689cfcc435abbb83e24f6e7ae05 [2020-09-25 06:21:31,071 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 06:21:31,077 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 06:21:31,078 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 06:21:31,078 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 06:21:31,083 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 06:21:31,084 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:21:31" (1/1) ... [2020-09-25 06:21:31,089 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a098cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:21:31, skipping insertion in model container [2020-09-25 06:21:31,089 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:21:31" (1/1) ... [2020-09-25 06:21:31,099 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 06:21:31,150 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 06:21:31,516 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:21:31,535 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 06:21:31,797 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:21:31,845 INFO L208 MainTranslator]: Completed translation [2020-09-25 06:21:31,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:21:31 WrapperNode [2020-09-25 06:21:31,846 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 06:21:31,847 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 06:21:31,847 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 06:21:31,848 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 06:21:31,862 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:21:31" (1/1) ... [2020-09-25 06:21:31,862 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:21:31" (1/1) ... [2020-09-25 06:21:31,885 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:21:31" (1/1) ... [2020-09-25 06:21:31,885 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:21:31" (1/1) ... [2020-09-25 06:21:31,916 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:21:31" (1/1) ... [2020-09-25 06:21:31,928 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:21:31" (1/1) ... [2020-09-25 06:21:31,935 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:21:31" (1/1) ... [2020-09-25 06:21:31,944 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 06:21:31,944 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 06:21:31,945 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 06:21:31,945 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 06:21:31,947 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:21:31" (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 06:21:32,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 06:21:32,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 06:21:32,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 06:21:32,050 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 06:21:32,050 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 06:21:32,050 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 06:21:32,050 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 06:21:32,050 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 06:21:32,051 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 06:21:32,051 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 06:21:32,051 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 06:21:32,051 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 06:21:32,051 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 06:21:32,052 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-25 06:21:32,052 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 06:21:32,052 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 06:21:32,052 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 06:21:32,052 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 06:21:32,053 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 06:21:32,053 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 06:21:32,053 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 06:21:32,053 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-25 06:21:32,054 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-25 06:21:32,054 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 06:21:32,054 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 06:21:32,054 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 06:21:32,054 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 06:21:32,055 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 06:21:32,055 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 06:21:32,055 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 06:21:32,055 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 06:21:32,055 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 06:21:32,056 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 06:21:32,056 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 06:21:32,056 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 06:21:32,056 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 06:21:32,056 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 06:21:32,057 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 06:21:32,057 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 06:21:32,057 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 06:21:32,057 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 06:21:32,057 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 06:21:32,057 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 06:21:32,058 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 06:21:32,058 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 06:21:32,058 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 06:21:32,058 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 06:21:32,058 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 06:21:32,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 06:21:32,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 06:21:32,059 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 06:21:32,059 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 06:21:32,059 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 06:21:32,059 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 06:21:32,059 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 06:21:32,060 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 06:21:32,060 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 06:21:32,060 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 06:21:32,060 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 06:21:32,060 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 06:21:32,060 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 06:21:32,061 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 06:21:32,061 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 06:21:32,061 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 06:21:32,061 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 06:21:32,061 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 06:21:32,061 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 06:21:32,062 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 06:21:32,062 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 06:21:32,062 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 06:21:32,062 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 06:21:32,062 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 06:21:32,062 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 06:21:32,063 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 06:21:32,063 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-25 06:21:32,063 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 06:21:32,063 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 06:21:32,063 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 06:21:32,063 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-25 06:21:32,064 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 06:21:32,064 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 06:21:32,064 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-25 06:21:32,064 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 06:21:32,064 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 06:21:32,065 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 06:21:32,065 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 06:21:32,065 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 06:21:32,065 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 06:21:32,065 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 06:21:32,065 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 06:21:32,065 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 06:21:32,066 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 06:21:32,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 06:21:32,066 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 06:21:33,244 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 06:21:33,245 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 06:21:33,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:21:33 BoogieIcfgContainer [2020-09-25 06:21:33,258 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 06:21:33,259 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 06:21:33,260 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 06:21:33,264 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 06:21:33,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 06:21:31" (1/3) ... [2020-09-25 06:21:33,265 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d4c2037 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:21:33, skipping insertion in model container [2020-09-25 06:21:33,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:21:31" (2/3) ... [2020-09-25 06:21:33,267 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d4c2037 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:21:33, skipping insertion in model container [2020-09-25 06:21:33,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:21:33" (3/3) ... [2020-09-25 06:21:33,270 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product42.cil.c [2020-09-25 06:21:33,281 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 06:21:33,295 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 06:21:33,314 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 06:21:33,344 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 06:21:33,344 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 06:21:33,345 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 06:21:33,345 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 06:21:33,345 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 06:21:33,345 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 06:21:33,345 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 06:21:33,345 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 06:21:33,370 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states. [2020-09-25 06:21:33,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 06:21:33,389 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:21:33,390 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:21:33,391 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:21:33,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:21:33,399 INFO L82 PathProgramCache]: Analyzing trace with hash 769335885, now seen corresponding path program 1 times [2020-09-25 06:21:33,411 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:21:33,411 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [80676522] [2020-09-25 06:21:33,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:21:33,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:34,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:34,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:35,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:36,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:37,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:38,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:38,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 06:21:38,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:21:38,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 06:21:38,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:38,861 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:38,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:38,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-25 06:21:38,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:38,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 14 [2020-09-25 06:21:39,340 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:21:39,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:21:39,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:39,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:39,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:39,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 06:21:39,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:39,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-09-25 06:21:39,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:39,499 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:39,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:39,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:39,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:39,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:39,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 06:21:39,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:39,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:39,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:39,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:21:39,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:39,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:21:39,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:39,595 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:39,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:39,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:39,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:39,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:39,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 06:21:39,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:39,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:39,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:39,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:21:39,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:39,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:21:39,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:39,606 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:39,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:39,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:39,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:39,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:39,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 06:21:39,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:39,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:39,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:39,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:21:39,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:39,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 06:21:39,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:39,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:39,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:39,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:39,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:39,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:39,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:21:39,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:39,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:39,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:39,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:21:39,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:39,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:21:39,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:39,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:39,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:39,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:39,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:39,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:39,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 06:21:39,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:39,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:39,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:39,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:21:39,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:39,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:21:39,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:39,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:39,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:39,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:39,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:39,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:39,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 06:21:39,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:39,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:39,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:39,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:21:39,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:39,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:21:39,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:39,667 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:39,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:39,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:21:39,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:39,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:39,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 06:21:39,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:39,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:39,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:39,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:21:39,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:39,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:21:39,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:39,678 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:39,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:39,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:21:39,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:39,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:39,752 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 06:21:39,753 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [80676522] [2020-09-25 06:21:39,756 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:21:39,756 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 06:21:39,757 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370707157] [2020-09-25 06:21:39,767 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 06:21:39,770 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:21:39,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 06:21:39,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 06:21:39,792 INFO L87 Difference]: Start difference. First operand 308 states. Second operand 4 states. [2020-09-25 06:21:41,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:21:41,283 INFO L93 Difference]: Finished difference Result 478 states and 564 transitions. [2020-09-25 06:21:41,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 06:21:41,286 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2020-09-25 06:21:41,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:21:41,308 INFO L225 Difference]: With dead ends: 478 [2020-09-25 06:21:41,309 INFO L226 Difference]: Without dead ends: 306 [2020-09-25 06:21:41,315 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 06:21:41,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2020-09-25 06:21:41,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 257. [2020-09-25 06:21:41,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 257 states. [2020-09-25 06:21:41,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 278 transitions. [2020-09-25 06:21:41,429 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 278 transitions. Word has length 148 [2020-09-25 06:21:41,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:21:41,430 INFO L479 AbstractCegarLoop]: Abstraction has 257 states and 278 transitions. [2020-09-25 06:21:41,430 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 06:21:41,430 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 278 transitions. [2020-09-25 06:21:41,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-09-25 06:21:41,435 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:21:41,435 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:21:41,436 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 06:21:41,436 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:21:41,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:21:41,436 INFO L82 PathProgramCache]: Analyzing trace with hash 1712592355, now seen corresponding path program 1 times [2020-09-25 06:21:41,437 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:21:41,437 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1172350089] [2020-09-25 06:21:41,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:21:41,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:41,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:41,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:43,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:44,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:45,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:45,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:46,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:46,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-09-25 06:21:46,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 06:21:46,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5032 [2020-09-25 06:21:46,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:46,538 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:46,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:21:46,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 06:21:46,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 06:21:46,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:46,845 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:21:46,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:21:46,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:46,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:46,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:46,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 06:21:46,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:46,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-25 06:21:46,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:46,967 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:46,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:46,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:46,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:46,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:47,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 06:21:47,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:47,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:47,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:47,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:21:47,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:47,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:21:47,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:47,018 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:47,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:47,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:47,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:47,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:47,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 06:21:47,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:47,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:47,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:47,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:21:47,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:47,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:21:47,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:47,026 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:47,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:47,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:47,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:47,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:47,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 06:21:47,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:47,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:47,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:47,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:21:47,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:47,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:21:47,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:47,034 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:47,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:47,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:47,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:47,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:47,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:21:47,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:47,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:47,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:47,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:21:47,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:47,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:21:47,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:47,042 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:47,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:47,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:47,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:47,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:47,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 06:21:47,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:47,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:47,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:47,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:21:47,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:47,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:21:47,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:47,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:47,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:47,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:47,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:47,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:47,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-25 06:21:47,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:47,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:47,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:47,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:21:47,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:47,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:21:47,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:47,071 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:47,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:47,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:21:47,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:47,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:21:47,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 06:21:47,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:47,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:47,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:47,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:21:47,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:47,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:21:47,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:47,079 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:47,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:47,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:21:47,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:47,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:47,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:21:47,105 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1172350089] [2020-09-25 06:21:47,106 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:21:47,106 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 06:21:47,106 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600850432] [2020-09-25 06:21:47,109 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 06:21:47,110 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:21:47,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 06:21:47,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:21:47,111 INFO L87 Difference]: Start difference. First operand 257 states and 278 transitions. Second operand 5 states. [2020-09-25 06:21:47,858 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:21:48,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:21:48,772 INFO L93 Difference]: Finished difference Result 403 states and 455 transitions. [2020-09-25 06:21:48,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 06:21:48,773 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 149 [2020-09-25 06:21:48,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:21:48,782 INFO L225 Difference]: With dead ends: 403 [2020-09-25 06:21:48,782 INFO L226 Difference]: Without dead ends: 295 [2020-09-25 06:21:48,784 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:21:48,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2020-09-25 06:21:48,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 247. [2020-09-25 06:21:48,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 247 states. [2020-09-25 06:21:48,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 265 transitions. [2020-09-25 06:21:48,829 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 265 transitions. Word has length 149 [2020-09-25 06:21:48,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:21:48,830 INFO L479 AbstractCegarLoop]: Abstraction has 247 states and 265 transitions. [2020-09-25 06:21:48,830 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 06:21:48,830 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 265 transitions. [2020-09-25 06:21:48,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-09-25 06:21:48,833 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:21:48,833 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:21:48,834 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 06:21:48,834 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:21:48,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:21:48,834 INFO L82 PathProgramCache]: Analyzing trace with hash -1803359450, now seen corresponding path program 1 times [2020-09-25 06:21:48,835 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:21:48,835 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [719569077] [2020-09-25 06:21:48,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:21:48,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:48,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:49,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:49,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:50,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:51,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:53,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:53,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 195 [2020-09-25 06:21:53,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:21:53,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 06:21:53,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:53,891 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:53,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:21:53,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-25 06:21:53,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 06:21:53,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:54,213 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:21:54,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:21:54,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:54,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:54,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:54,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 06:21:54,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:54,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-09-25 06:21:54,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:54,321 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:54,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:54,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:54,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:54,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:54,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 06:21:54,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:54,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:54,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:54,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:21:54,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:54,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:21:54,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:54,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:54,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:54,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:54,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:54,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:54,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 06:21:54,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:54,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:54,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:54,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:21:54,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:54,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:21:54,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:54,370 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:54,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:54,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:54,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:54,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:54,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 06:21:54,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:54,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:54,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:54,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:21:54,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:54,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 06:21:54,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:54,381 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:54,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:54,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:54,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:54,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:54,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:21:54,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:54,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:54,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:54,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:21:54,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:54,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:21:54,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:54,387 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:54,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:54,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:54,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:54,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:54,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 06:21:54,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:54,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:54,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:54,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:21:54,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:54,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:21:54,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:54,402 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:54,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:54,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:54,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:54,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:54,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 06:21:54,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:54,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:54,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:54,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:21:54,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:54,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:21:54,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:54,418 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:54,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:21:54,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:54,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 06:21:54,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:54,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 06:21:54,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:54,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:54,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:54,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:21:54,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:54,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:21:54,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:54,430 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:54,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:54,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:21:54,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:54,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:54,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 06:21:54,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:54,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:54,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:54,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:21:54,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:54,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:21:54,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:54,436 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:54,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:54,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:21:54,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:54,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:54,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:21:54,465 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [719569077] [2020-09-25 06:21:54,465 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:21:54,465 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 06:21:54,466 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068621106] [2020-09-25 06:21:54,467 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 06:21:54,468 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:21:54,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 06:21:54,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 06:21:54,469 INFO L87 Difference]: Start difference. First operand 247 states and 265 transitions. Second operand 6 states. [2020-09-25 06:21:55,082 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 06:21:56,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:21:56,207 INFO L93 Difference]: Finished difference Result 450 states and 520 transitions. [2020-09-25 06:21:56,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 06:21:56,208 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 162 [2020-09-25 06:21:56,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:21:56,213 INFO L225 Difference]: With dead ends: 450 [2020-09-25 06:21:56,213 INFO L226 Difference]: Without dead ends: 318 [2020-09-25 06:21:56,214 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 06:21:56,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2020-09-25 06:21:56,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 247. [2020-09-25 06:21:56,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 247 states. [2020-09-25 06:21:56,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 264 transitions. [2020-09-25 06:21:56,261 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 264 transitions. Word has length 162 [2020-09-25 06:21:56,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:21:56,262 INFO L479 AbstractCegarLoop]: Abstraction has 247 states and 264 transitions. [2020-09-25 06:21:56,262 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 06:21:56,262 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 264 transitions. [2020-09-25 06:21:56,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-09-25 06:21:56,270 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:21:56,271 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:21:56,271 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 06:21:56,271 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:21:56,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:21:56,272 INFO L82 PathProgramCache]: Analyzing trace with hash 1365821347, now seen corresponding path program 1 times [2020-09-25 06:21:56,272 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:21:56,272 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [772907871] [2020-09-25 06:21:56,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:21:56,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:56,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:56,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:57,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:58,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:58,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:00,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:01,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:01,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-09-25 06:22:01,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 06:22:01,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-09-25 06:22:01,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:01,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:01,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:22:01,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 159 [2020-09-25 06:22:01,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:22:01,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:01,704 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:22:01,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:22:01,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:01,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:01,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:01,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 06:22:01,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:01,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-09-25 06:22:01,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:01,828 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:01,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:01,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:01,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:01,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:01,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 06:22:01,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:01,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:01,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:01,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:22:01,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:01,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:22:01,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:01,874 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:01,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:01,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:01,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:01,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:01,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 06:22:01,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:01,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:01,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:01,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:22:01,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:01,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:22:01,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:01,882 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:01,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:01,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:01,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:01,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:01,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 06:22:01,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:01,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:01,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:01,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:22:01,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:01,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:22:01,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:01,891 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:01,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:01,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:01,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:01,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:01,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:22:01,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:01,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:01,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:01,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:22:01,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:01,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:22:01,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:01,899 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:01,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:01,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:01,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:01,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:01,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 06:22:01,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:01,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:01,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:01,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:22:01,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:01,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:22:01,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:01,915 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:01,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:01,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:01,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:01,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:01,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 06:22:01,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:01,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:01,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:01,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:22:01,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:01,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:22:01,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:01,935 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:01,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:01,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:01,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:01,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:01,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 06:22:01,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:01,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:01,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:01,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 06:22:01,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:01,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:22:01,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:01,960 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:01,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:22:01,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 06:22:01,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 06:22:01,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:22:01,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:22:01,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:01,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:02,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:02,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:22:02,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:02,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:22:02,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:02,004 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:02,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:22:02,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:02,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:22:02,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:02,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 06:22:02,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:02,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:02,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:02,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:22:02,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:02,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:22:02,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:02,011 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:02,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:02,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:22:02,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:02,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:22:02,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-25 06:22:02,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:02,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:02,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:02,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:22:02,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:02,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:22:02,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:02,019 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:02,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:02,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:22:02,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:02,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:02,051 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 06:22:02,052 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [772907871] [2020-09-25 06:22:02,052 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:22:02,053 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 06:22:02,053 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053703603] [2020-09-25 06:22:02,054 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 06:22:02,054 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:22:02,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 06:22:02,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-09-25 06:22:02,055 INFO L87 Difference]: Start difference. First operand 247 states and 264 transitions. Second operand 9 states. [2020-09-25 06:22:02,588 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 06:22:04,223 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:22:05,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:22:05,100 INFO L93 Difference]: Finished difference Result 629 states and 750 transitions. [2020-09-25 06:22:05,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-25 06:22:05,101 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 170 [2020-09-25 06:22:05,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:22:05,106 INFO L225 Difference]: With dead ends: 629 [2020-09-25 06:22:05,106 INFO L226 Difference]: Without dead ends: 497 [2020-09-25 06:22:05,107 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=159, Invalid=393, Unknown=0, NotChecked=0, Total=552 [2020-09-25 06:22:05,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2020-09-25 06:22:05,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 356. [2020-09-25 06:22:05,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2020-09-25 06:22:05,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 385 transitions. [2020-09-25 06:22:05,161 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 385 transitions. Word has length 170 [2020-09-25 06:22:05,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:22:05,162 INFO L479 AbstractCegarLoop]: Abstraction has 356 states and 385 transitions. [2020-09-25 06:22:05,162 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 06:22:05,162 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 385 transitions. [2020-09-25 06:22:05,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-09-25 06:22:05,165 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:22:05,165 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:22:05,165 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 06:22:05,166 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:22:05,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:22:05,166 INFO L82 PathProgramCache]: Analyzing trace with hash -193373180, now seen corresponding path program 1 times [2020-09-25 06:22:05,166 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:22:05,166 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [47407572] [2020-09-25 06:22:05,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:22:05,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:05,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:05,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:07,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:08,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:08,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:09,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:10,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:10,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-09-25 06:22:10,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 06:22:10,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-09-25 06:22:10,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:10,243 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:10,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 06:22:10,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-09-25 06:22:10,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-09-25 06:22:10,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:10,623 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:22:10,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:22:10,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:10,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:10,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:10,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 06:22:10,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:10,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-09-25 06:22:10,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:10,735 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:10,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:10,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:10,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:10,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:10,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 06:22:10,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:10,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:10,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:10,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:22:10,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:10,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:22:10,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:10,778 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:10,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:10,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:10,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:10,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:10,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 06:22:10,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:10,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:10,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:10,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:22:10,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:10,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:22:10,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:10,789 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:10,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:10,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:10,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:10,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:22:10,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 06:22:10,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:10,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:10,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:10,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:22:10,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:10,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 06:22:10,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:10,800 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:10,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:10,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:10,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:10,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:10,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:22:10,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:10,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:10,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:10,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:22:10,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:10,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:22:10,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:10,806 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:10,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:10,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:10,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:10,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:10,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 06:22:10,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:10,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:10,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:10,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:22:10,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:10,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:22:10,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:10,829 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:10,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:22:10,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:10,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 06:22:10,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:10,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 06:22:10,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:10,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:10,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:10,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:22:10,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:10,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:22:10,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:10,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:10,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:22:10,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:10,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 06:22:10,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:22:10,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 06:22:10,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:10,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:10,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:11,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:11,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:11,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 06:22:11,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 06:22:11,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 347 [2020-09-25 06:22:11,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:11,219 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:11,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:22:11,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:11,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-25 06:22:11,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:11,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:22:11,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:11,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:11,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:11,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:11,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 06:22:11,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:22:11,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-25 06:22:11,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:11,269 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:11,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:11,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:11,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:11,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:11,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 06:22:11,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:11,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:11,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:11,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 06:22:11,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:11,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:22:11,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:11,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:11,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:11,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:11,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:11,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:11,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 06:22:11,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:11,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:11,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:11,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:22:11,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:11,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:22:11,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:11,286 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:11,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:11,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:11,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:11,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:11,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-09-25 06:22:11,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:11,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:11,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:11,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:22:11,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:11,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:22:11,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:11,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:11,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:22:11,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:11,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:22:11,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:22:11,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-25 06:22:11,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:11,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:11,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:11,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:22:11,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:11,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:22:11,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:11,304 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:11,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:22:11,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:11,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:22:11,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:22:11,359 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 06:22:11,359 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [47407572] [2020-09-25 06:22:11,360 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:22:11,360 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 06:22:11,360 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512199856] [2020-09-25 06:22:11,361 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 06:22:11,361 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:22:11,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 06:22:11,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:22:11,362 INFO L87 Difference]: Start difference. First operand 356 states and 385 transitions. Second operand 7 states. [2020-09-25 06:22:11,920 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:22:14,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:22:14,306 INFO L93 Difference]: Finished difference Result 956 states and 1221 transitions. [2020-09-25 06:22:14,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 06:22:14,307 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 194 [2020-09-25 06:22:14,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:22:14,314 INFO L225 Difference]: With dead ends: 956 [2020-09-25 06:22:14,315 INFO L226 Difference]: Without dead ends: 953 [2020-09-25 06:22:14,315 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=108, Invalid=234, Unknown=0, NotChecked=0, Total=342 [2020-09-25 06:22:14,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 953 states. [2020-09-25 06:22:14,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 953 to 603. [2020-09-25 06:22:14,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 603 states. [2020-09-25 06:22:14,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 669 transitions. [2020-09-25 06:22:14,425 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 669 transitions. Word has length 194 [2020-09-25 06:22:14,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:22:14,426 INFO L479 AbstractCegarLoop]: Abstraction has 603 states and 669 transitions. [2020-09-25 06:22:14,426 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 06:22:14,426 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 669 transitions. [2020-09-25 06:22:14,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2020-09-25 06:22:14,432 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:22:14,433 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:22:14,433 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 06:22:14,433 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:22:14,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:22:14,434 INFO L82 PathProgramCache]: Analyzing trace with hash -631619088, now seen corresponding path program 1 times [2020-09-25 06:22:14,434 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:22:14,434 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2107499816] [2020-09-25 06:22:14,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:22:14,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:14,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:14,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:14,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:15,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:15,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking...