/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=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product49.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 01:44:51,806 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 01:44:51,810 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 01:44:51,856 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 01:44:51,857 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 01:44:51,867 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 01:44:51,869 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 01:44:51,874 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 01:44:51,876 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 01:44:51,877 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 01:44:51,878 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 01:44:51,879 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 01:44:51,880 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 01:44:51,881 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 01:44:51,882 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 01:44:51,883 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 01:44:51,884 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 01:44:51,885 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 01:44:51,887 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 01:44:51,889 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 01:44:51,890 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 01:44:51,891 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 01:44:51,892 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 01:44:51,893 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 01:44:51,896 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 01:44:51,896 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 01:44:51,896 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 01:44:51,897 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 01:44:51,898 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 01:44:51,899 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 01:44:51,899 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 01:44:51,900 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 01:44:51,901 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 01:44:51,902 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 01:44:51,903 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 01:44:51,903 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 01:44:51,904 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 01:44:51,904 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 01:44:51,904 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 01:44:51,905 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 01:44:51,906 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 01:44:51,907 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 01:44:51,933 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 01:44:51,933 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 01:44:51,934 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 01:44:51,934 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 01:44:51,935 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 01:44:51,935 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 01:44:51,935 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 01:44:51,935 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 01:44:51,936 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 01:44:51,936 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 01:44:51,936 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 01:44:51,936 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 01:44:51,936 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 01:44:51,937 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 01:44:51,937 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 01:44:51,937 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 01:44:51,937 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 01:44:51,937 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 01:44:51,938 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 01:44:51,938 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 01:44:51,938 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 01:44:51,938 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 01:44:51,938 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 01:44:51,939 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 01:44:51,939 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 01:44:51,939 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 01:44:51,939 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 01:44:51,939 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 01:44:51,940 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 01:44:51,940 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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;log-additional-information=true; [2020-09-25 01:44:52,363 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 01:44:52,387 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 01:44:52,392 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 01:44:52,394 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 01:44:52,395 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 01:44:52,396 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product49.cil.c [2020-09-25 01:44:52,490 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dc8b00f76/541c07ce981940f9882dc30fbf6aebf2/FLAG1fd5a5ef8 [2020-09-25 01:44:53,087 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 01:44:53,088 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product49.cil.c [2020-09-25 01:44:53,101 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dc8b00f76/541c07ce981940f9882dc30fbf6aebf2/FLAG1fd5a5ef8 [2020-09-25 01:44:53,361 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dc8b00f76/541c07ce981940f9882dc30fbf6aebf2 [2020-09-25 01:44:53,375 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 01:44:53,380 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 01:44:53,381 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 01:44:53,381 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 01:44:53,385 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 01:44:53,386 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:44:53" (1/1) ... [2020-09-25 01:44:53,390 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51a556b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:44:53, skipping insertion in model container [2020-09-25 01:44:53,391 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:44:53" (1/1) ... [2020-09-25 01:44:53,399 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 01:44:53,450 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 01:44:53,851 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:44:53,866 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 01:44:54,050 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:44:54,092 INFO L208 MainTranslator]: Completed translation [2020-09-25 01:44:54,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:44:54 WrapperNode [2020-09-25 01:44:54,093 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 01:44:54,094 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 01:44:54,094 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 01:44:54,094 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 01:44:54,110 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:44:54" (1/1) ... [2020-09-25 01:44:54,110 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:44:54" (1/1) ... [2020-09-25 01:44:54,131 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:44:54" (1/1) ... [2020-09-25 01:44:54,132 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:44:54" (1/1) ... [2020-09-25 01:44:54,179 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:44:54" (1/1) ... [2020-09-25 01:44:54,197 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:44:54" (1/1) ... [2020-09-25 01:44:54,205 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:44:54" (1/1) ... [2020-09-25 01:44:54,213 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 01:44:54,213 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 01:44:54,214 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 01:44:54,214 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 01:44:54,215 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:44:54" (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 01:44:54,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 01:44:54,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 01:44:54,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 01:44:54,297 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 01:44:54,297 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 01:44:54,297 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 01:44:54,297 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 01:44:54,297 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 01:44:54,297 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 01:44:54,298 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 01:44:54,298 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 01:44:54,298 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 01:44:54,298 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 01:44:54,298 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 01:44:54,299 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 01:44:54,299 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 01:44:54,299 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 01:44:54,299 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 01:44:54,299 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 01:44:54,301 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 01:44:54,301 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 01:44:54,301 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 01:44:54,301 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 01:44:54,301 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 01:44:54,302 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 01:44:54,302 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 01:44:54,302 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 01:44:54,302 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 01:44:54,302 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 01:44:54,302 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 01:44:54,303 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 01:44:54,304 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 01:44:54,304 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 01:44:54,304 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 01:44:54,304 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 01:44:54,304 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 01:44:54,304 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 01:44:54,305 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 01:44:54,305 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 01:44:54,305 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 01:44:54,305 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 01:44:54,305 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 01:44:54,305 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 01:44:54,305 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 01:44:54,306 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 01:44:54,306 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 01:44:54,306 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 01:44:54,306 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 01:44:54,306 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 01:44:54,306 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 01:44:54,307 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 01:44:54,307 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 01:44:54,307 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 01:44:54,308 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 01:44:54,308 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 01:44:54,308 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 01:44:54,308 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 01:44:54,308 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 01:44:54,308 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 01:44:54,309 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 01:44:54,309 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 01:44:54,309 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 01:44:54,309 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 01:44:54,309 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 01:44:54,310 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 01:44:54,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 01:44:54,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 01:44:54,310 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 01:44:54,310 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 01:44:54,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 01:44:54,311 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 01:44:54,312 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 01:44:54,313 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 01:44:54,313 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 01:44:54,313 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 01:44:54,313 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 01:44:54,313 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 01:44:54,313 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 01:44:54,314 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 01:44:54,314 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 01:44:54,314 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 01:44:54,314 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 01:44:54,315 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 01:44:54,315 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 01:44:54,316 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 01:44:54,316 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 01:44:54,316 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 01:44:54,316 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 01:44:54,316 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 01:44:54,316 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 01:44:54,316 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 01:44:54,317 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 01:44:54,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 01:44:54,317 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 01:44:55,420 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 01:44:55,421 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 01:44:55,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:44:55 BoogieIcfgContainer [2020-09-25 01:44:55,428 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 01:44:55,429 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 01:44:55,429 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 01:44:55,433 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 01:44:55,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:44:53" (1/3) ... [2020-09-25 01:44:55,434 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e7841b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:44:55, skipping insertion in model container [2020-09-25 01:44:55,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:44:54" (2/3) ... [2020-09-25 01:44:55,435 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e7841b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:44:55, skipping insertion in model container [2020-09-25 01:44:55,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:44:55" (3/3) ... [2020-09-25 01:44:55,437 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product49.cil.c [2020-09-25 01:44:55,448 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 01:44:55,459 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 01:44:55,482 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 01:44:55,515 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 01:44:55,515 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 01:44:55,516 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 01:44:55,516 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 01:44:55,516 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 01:44:55,516 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 01:44:55,516 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 01:44:55,516 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 01:44:55,549 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states. [2020-09-25 01:44:55,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 01:44:55,567 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:44:55,568 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:44:55,569 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:44:55,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:44:55,576 INFO L82 PathProgramCache]: Analyzing trace with hash -231713174, now seen corresponding path program 1 times [2020-09-25 01:44:55,586 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:44:55,586 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1407888474] [2020-09-25 01:44:55,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:44:55,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:44:56,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:44:56,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:44:56,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:44:57,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:44:58,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:00,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:00,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 01:45:00,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 01:45:00,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5059 [2020-09-25 01:45:00,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:01,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:01,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 01:45:01,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:01,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 30 [2020-09-25 01:45:01,563 WARN L193 SmtUtils]: Spent 383.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:45:01,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:45:01,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:01,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:01,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:01,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:45:01,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:01,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 132 [2020-09-25 01:45:01,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:01,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:01,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:01,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:01,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:01,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:45:01,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:01,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:01,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:01,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:45:01,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:01,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:45:01,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:01,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:01,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:01,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:01,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:01,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:45:01,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:01,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:01,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:01,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:45:01,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:01,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:45:01,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:01,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:01,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:01,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:01,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:01,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:45:01,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:01,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:01,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:01,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:45:01,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:01,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 01:45:01,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:01,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:01,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:01,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:01,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:01,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:45:01,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:01,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:01,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:01,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:45:01,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:01,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:45:01,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:01,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:01,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:01,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:01,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:01,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 01:45:01,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:01,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:01,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:01,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:45:01,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:01,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:45:01,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:01,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:01,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:45:01,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:01,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:01,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 01:45:01,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:01,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:01,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:01,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:45:01,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:01,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:45:01,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:01,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:01,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:45:01,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:01,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:01,894 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 01:45:01,895 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1407888474] [2020-09-25 01:45:01,897 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:45:01,898 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 01:45:01,899 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516059009] [2020-09-25 01:45:01,905 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 01:45:01,906 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:45:01,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 01:45:01,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 01:45:01,927 INFO L87 Difference]: Start difference. First operand 318 states. Second operand 3 states. [2020-09-25 01:45:03,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:45:03,317 INFO L93 Difference]: Finished difference Result 489 states and 580 transitions. [2020-09-25 01:45:03,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 01:45:03,320 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-25 01:45:03,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:45:03,352 INFO L225 Difference]: With dead ends: 489 [2020-09-25 01:45:03,352 INFO L226 Difference]: Without dead ends: 302 [2020-09-25 01:45:03,359 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 01:45:03,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2020-09-25 01:45:03,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 261. [2020-09-25 01:45:03,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261 states. [2020-09-25 01:45:03,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 283 transitions. [2020-09-25 01:45:03,489 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 283 transitions. Word has length 142 [2020-09-25 01:45:03,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:45:03,490 INFO L479 AbstractCegarLoop]: Abstraction has 261 states and 283 transitions. [2020-09-25 01:45:03,490 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 01:45:03,490 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 283 transitions. [2020-09-25 01:45:03,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-25 01:45:03,495 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:45:03,495 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:45:03,495 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 01:45:03,496 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:45:03,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:45:03,496 INFO L82 PathProgramCache]: Analyzing trace with hash 259002356, now seen corresponding path program 1 times [2020-09-25 01:45:03,496 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:45:03,497 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [382533203] [2020-09-25 01:45:03,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:45:03,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:03,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:03,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:04,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:04,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:05,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:08,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:08,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 01:45:08,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 01:45:08,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5039 [2020-09-25 01:45:08,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:08,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:45:08,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 01:45:08,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 01:45:08,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:08,900 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:45:08,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:45:08,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:08,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:09,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:09,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:45:09,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:09,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-25 01:45:09,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:09,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:09,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:09,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:09,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:09,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:45:09,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:09,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:09,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:09,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:45:09,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:09,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:45:09,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:09,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:09,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:09,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:09,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:09,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:45:09,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:09,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:09,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:09,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:45:09,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:09,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:45:09,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:09,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:09,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:09,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:09,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:09,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:45:09,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:09,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:09,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:09,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:45:09,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:09,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 01:45:09,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:09,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:09,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:09,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:09,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:09,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:45:09,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:09,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:09,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:09,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:45:09,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:09,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:45:09,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:09,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:09,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:09,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:09,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:09,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 01:45:09,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:09,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:09,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:09,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:45:09,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:09,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:45:09,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:09,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:09,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:45:09,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:09,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:09,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 01:45:09,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:09,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:09,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:09,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:45:09,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:09,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:45:09,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:09,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:09,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:45:09,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:09,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:09,124 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 01:45:09,124 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [382533203] [2020-09-25 01:45:09,125 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:45:09,125 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 01:45:09,125 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068257263] [2020-09-25 01:45:09,128 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 01:45:09,128 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:45:09,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 01:45:09,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 01:45:09,130 INFO L87 Difference]: Start difference. First operand 261 states and 283 transitions. Second operand 4 states. [2020-09-25 01:45:09,711 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:45:10,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:45:10,686 INFO L93 Difference]: Finished difference Result 406 states and 455 transitions. [2020-09-25 01:45:10,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 01:45:10,687 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-25 01:45:10,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:45:10,691 INFO L225 Difference]: With dead ends: 406 [2020-09-25 01:45:10,692 INFO L226 Difference]: Without dead ends: 285 [2020-09-25 01:45:10,696 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 01:45:10,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2020-09-25 01:45:10,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 251. [2020-09-25 01:45:10,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 251 states. [2020-09-25 01:45:10,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 270 transitions. [2020-09-25 01:45:10,743 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 270 transitions. Word has length 143 [2020-09-25 01:45:10,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:45:10,743 INFO L479 AbstractCegarLoop]: Abstraction has 251 states and 270 transitions. [2020-09-25 01:45:10,744 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 01:45:10,744 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 270 transitions. [2020-09-25 01:45:10,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-09-25 01:45:10,746 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:45:10,746 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] [2020-09-25 01:45:10,747 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 01:45:10,747 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:45:10,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:45:10,747 INFO L82 PathProgramCache]: Analyzing trace with hash 1790714059, now seen corresponding path program 1 times [2020-09-25 01:45:10,748 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:45:10,748 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1850560549] [2020-09-25 01:45:10,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:45:10,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:10,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:11,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:11,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:11,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:15,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:15,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 01:45:15,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 01:45:15,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5042 [2020-09-25 01:45:15,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:15,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 01:45:15,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 01:45:15,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 01:45:15,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:45:16,141 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:45:16,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:45:16,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:16,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:16,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:16,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:45:16,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:16,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-09-25 01:45:16,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:16,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:16,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:16,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:16,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:16,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:45:16,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:16,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:16,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:16,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:45:16,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:16,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:45:16,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:16,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:16,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:16,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:16,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:16,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:45:16,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:16,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:16,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:16,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:45:16,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:16,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:45:16,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:16,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:16,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:16,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:16,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:16,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:45:16,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:16,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:16,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:16,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:45:16,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:16,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:45:16,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:16,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:16,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:16,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:16,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:16,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:45:16,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:16,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:16,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:16,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:45:16,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:16,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:45:16,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:16,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:16,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:16,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:16,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:16,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 01:45:16,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:16,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:16,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:16,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:45:16,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:16,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:45:16,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:16,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:45:16,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:16,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:45:16,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:16,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-25 01:45:16,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:16,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:16,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:16,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:45:16,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:16,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 01:45:16,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:16,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:45:16,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:16,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:45:16,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:16,362 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 01:45:16,362 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1850560549] [2020-09-25 01:45:16,362 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:45:16,363 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 01:45:16,363 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086875513] [2020-09-25 01:45:16,364 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 01:45:16,364 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:45:16,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 01:45:16,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 01:45:16,364 INFO L87 Difference]: Start difference. First operand 251 states and 270 transitions. Second operand 8 states. [2020-09-25 01:45:16,890 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:45:17,898 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:45:18,226 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:45:18,518 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:45:18,852 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:45:19,177 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:45:19,755 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:45:20,047 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:45:20,379 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:45:21,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:45:21,166 INFO L93 Difference]: Finished difference Result 507 states and 586 transitions. [2020-09-25 01:45:21,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 01:45:21,167 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 152 [2020-09-25 01:45:21,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:45:21,171 INFO L225 Difference]: With dead ends: 507 [2020-09-25 01:45:21,172 INFO L226 Difference]: Without dead ends: 366 [2020-09-25 01:45:21,174 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2020-09-25 01:45:21,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2020-09-25 01:45:21,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 337. [2020-09-25 01:45:21,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 337 states. [2020-09-25 01:45:21,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 375 transitions. [2020-09-25 01:45:21,228 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 375 transitions. Word has length 152 [2020-09-25 01:45:21,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:45:21,229 INFO L479 AbstractCegarLoop]: Abstraction has 337 states and 375 transitions. [2020-09-25 01:45:21,229 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 01:45:21,229 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 375 transitions. [2020-09-25 01:45:21,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-09-25 01:45:21,232 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:45:21,232 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] [2020-09-25 01:45:21,232 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 01:45:21,232 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:45:21,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:45:21,233 INFO L82 PathProgramCache]: Analyzing trace with hash 1922205741, now seen corresponding path program 1 times [2020-09-25 01:45:21,233 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:45:21,233 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1034053471] [2020-09-25 01:45:21,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:45:21,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:21,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:21,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:26,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:26,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 229 [2020-09-25 01:45:26,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 01:45:26,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-09-25 01:45:26,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:26,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 01:45:26,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-09-25 01:45:26,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 01:45:26,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:26,651 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:45:26,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:45:26,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:26,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:26,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:26,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:45:26,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:26,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-09-25 01:45:26,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:26,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:26,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:26,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:26,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:26,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:45:26,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:26,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:26,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:26,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:45:26,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:26,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:45:26,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:26,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:26,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:26,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:26,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:26,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:45:26,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:26,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:26,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:26,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:45:26,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:26,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:45:26,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:26,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:26,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:26,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:26,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:26,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:45:26,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:26,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:26,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:26,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:45:26,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:26,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:45:26,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:26,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:26,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:26,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:26,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:26,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:45:26,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:26,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:26,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:26,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:45:26,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:26,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:45:26,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:26,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:26,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:26,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:26,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:26,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 01:45:26,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:26,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:26,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:26,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 01:45:26,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:26,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-09-25 01:45:26,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:26,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 01:45:26,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 01:45:26,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 01:45:26,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:26,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:45:26,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:26,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:26,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:26,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 01:45:26,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:26,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-25 01:45:26,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:26,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 01:45:26,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 01:45:26,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 01:45:26,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:45:27,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:45:27,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:27,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:27,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:27,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 01:45:27,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:27,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-09-25 01:45:27,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:27,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:45:27,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:27,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 01:45:27,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:45:27,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 01:45:27,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:27,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:27,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:27,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 01:45:27,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:27,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 01:45:27,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:27,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:27,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:27,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:27,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:45:27,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 01:45:27,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:27,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:27,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:27,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:45:27,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:27,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:45:27,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:27,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:27,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 01:45:27,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:27,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:45:27,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-09-25 01:45:27,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:27,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:27,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:27,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:45:27,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:27,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:45:27,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:27,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:27,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:45:27,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:27,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:45:27,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-09-25 01:45:27,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:27,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:27,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:27,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:45:27,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:27,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:45:27,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:27,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:27,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:45:27,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:27,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:45:27,331 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 01:45:27,332 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1034053471] [2020-09-25 01:45:27,332 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:45:27,332 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 01:45:27,333 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082107563] [2020-09-25 01:45:27,333 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 01:45:27,334 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:45:27,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 01:45:27,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 01:45:27,334 INFO L87 Difference]: Start difference. First operand 337 states and 375 transitions. Second operand 9 states. [2020-09-25 01:45:28,940 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:45:29,177 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 01:45:29,419 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 01:45:29,725 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:45:30,047 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 01:45:30,332 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:45:31,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:45:31,132 INFO L93 Difference]: Finished difference Result 624 states and 730 transitions. [2020-09-25 01:45:31,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 01:45:31,133 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 190 [2020-09-25 01:45:31,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:45:31,137 INFO L225 Difference]: With dead ends: 624 [2020-09-25 01:45:31,137 INFO L226 Difference]: Without dead ends: 397 [2020-09-25 01:45:31,139 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2020-09-25 01:45:31,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2020-09-25 01:45:31,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 345. [2020-09-25 01:45:31,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 345 states. [2020-09-25 01:45:31,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 383 transitions. [2020-09-25 01:45:31,188 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 383 transitions. Word has length 190 [2020-09-25 01:45:31,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:45:31,188 INFO L479 AbstractCegarLoop]: Abstraction has 345 states and 383 transitions. [2020-09-25 01:45:31,189 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 01:45:31,189 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 383 transitions. [2020-09-25 01:45:31,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-09-25 01:45:31,191 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:45:31,191 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] [2020-09-25 01:45:31,192 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 01:45:31,192 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:45:31,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:45:31,192 INFO L82 PathProgramCache]: Analyzing trace with hash 948335565, now seen corresponding path program 1 times [2020-09-25 01:45:31,193 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:45:31,193 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [753478501] [2020-09-25 01:45:31,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:45:31,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:31,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:31,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:35,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:35,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 229 [2020-09-25 01:45:35,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 01:45:35,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4231 [2020-09-25 01:45:35,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:35,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:45:35,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 169 [2020-09-25 01:45:35,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 01:45:35,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:35,741 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:45:35,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:45:35,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:35,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:35,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:35,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:45:35,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:35,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-09-25 01:45:35,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:35,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:35,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:35,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:35,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:35,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:45:35,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:35,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:35,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:35,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:45:35,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:35,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:45:35,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:35,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:35,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:35,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:35,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:35,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:45:35,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:35,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:35,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:35,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:45:35,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:35,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:45:35,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:35,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:35,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:35,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:35,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:45:35,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:45:35,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:35,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:35,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:35,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:45:35,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:35,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:45:35,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:35,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:35,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:35,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:35,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:35,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:45:35,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:35,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:35,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:35,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:45:35,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:35,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:45:35,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:35,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:35,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:35,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:35,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:35,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 01:45:35,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:35,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:36,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:36,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 01:45:36,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:36,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-09-25 01:45:36,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:36,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:45:36,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 01:45:36,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 01:45:36,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:36,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:45:36,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:36,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:36,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:36,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 01:45:36,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:36,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-25 01:45:36,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:36,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:45:36,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 01:45:36,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 01:45:36,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:36,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:45:36,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:36,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:36,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:36,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 01:45:36,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:36,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 01:45:36,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:36,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:45:36,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 01:45:36,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 01:45:36,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:36,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 01:45:36,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:36,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:36,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:36,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 01:45:36,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:36,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 01:45:36,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:36,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 01:45:36,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:36,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:45:36,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:36,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 01:45:36,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:36,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:36,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:36,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:45:36,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:36,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:45:36,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:36,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:36,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 01:45:36,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:36,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:36,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-09-25 01:45:36,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:36,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:36,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:36,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:45:36,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:36,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:45:36,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:36,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:36,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:45:36,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:36,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:36,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-09-25 01:45:36,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:36,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:36,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:36,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:45:36,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:36,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 01:45:36,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:36,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:36,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:45:36,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:36,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:45:36,300 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 01:45:36,300 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [753478501] [2020-09-25 01:45:36,300 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:45:36,300 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 01:45:36,301 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704783903] [2020-09-25 01:45:36,301 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 01:45:36,302 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:45:36,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 01:45:36,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 01:45:36,302 INFO L87 Difference]: Start difference. First operand 345 states and 383 transitions. Second operand 8 states. [2020-09-25 01:45:37,454 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:45:37,775 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 01:45:38,100 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:45:38,420 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 01:45:38,702 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 187