/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=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product45.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 00:40:41,257 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 00:40:41,261 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 00:40:41,313 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 00:40:41,313 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 00:40:41,315 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 00:40:41,316 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 00:40:41,318 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 00:40:41,320 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 00:40:41,322 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 00:40:41,323 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 00:40:41,324 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 00:40:41,325 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 00:40:41,326 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 00:40:41,330 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 00:40:41,332 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 00:40:41,333 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 00:40:41,334 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 00:40:41,336 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 00:40:41,338 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 00:40:41,340 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 00:40:41,341 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 00:40:41,343 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 00:40:41,344 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 00:40:41,347 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 00:40:41,347 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 00:40:41,347 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 00:40:41,349 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 00:40:41,349 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 00:40:41,350 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 00:40:41,350 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 00:40:41,351 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 00:40:41,352 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 00:40:41,353 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 00:40:41,354 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 00:40:41,355 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 00:40:41,356 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 00:40:41,356 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 00:40:41,356 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 00:40:41,357 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 00:40:41,358 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 00:40:41,359 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 00:40:41,386 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 00:40:41,386 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 00:40:41,388 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 00:40:41,388 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 00:40:41,388 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 00:40:41,389 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 00:40:41,389 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 00:40:41,389 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 00:40:41,389 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 00:40:41,389 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 00:40:41,390 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 00:40:41,390 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 00:40:41,390 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 00:40:41,390 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 00:40:41,391 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 00:40:41,391 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 00:40:41,391 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 00:40:41,391 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 00:40:41,391 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 00:40:41,392 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 00:40:41,392 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 00:40:41,392 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 00:40:41,392 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 00:40:41,393 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 00:40:41,393 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 00:40:41,393 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 00:40:41,393 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 00:40:41,393 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 00:40:41,393 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 00:40:41,394 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=DEEPEST;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=DEEPEST;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=DEEPEST;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=DEEPEST;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=DEEPEST;log-additional-information=true; [2020-09-25 00:40:41,870 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 00:40:41,888 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 00:40:41,893 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 00:40:41,895 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 00:40:41,895 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 00:40:41,896 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product45.cil.c [2020-09-25 00:40:41,972 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a74fb73c5/ddb39057415f46d99a647482cb6a977a/FLAGfb0d47679 [2020-09-25 00:40:42,566 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 00:40:42,567 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product45.cil.c [2020-09-25 00:40:42,587 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a74fb73c5/ddb39057415f46d99a647482cb6a977a/FLAGfb0d47679 [2020-09-25 00:40:42,852 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a74fb73c5/ddb39057415f46d99a647482cb6a977a [2020-09-25 00:40:42,865 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 00:40:42,869 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 00:40:42,871 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 00:40:42,871 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 00:40:42,877 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 00:40:42,879 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:40:42" (1/1) ... [2020-09-25 00:40:42,884 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ca632cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:40:42, skipping insertion in model container [2020-09-25 00:40:42,884 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:40:42" (1/1) ... [2020-09-25 00:40:42,895 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 00:40:42,975 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 00:40:43,462 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:40:43,479 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 00:40:43,587 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:40:43,633 INFO L208 MainTranslator]: Completed translation [2020-09-25 00:40:43,635 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:40:43 WrapperNode [2020-09-25 00:40:43,635 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 00:40:43,636 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 00:40:43,636 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 00:40:43,636 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 00:40:43,652 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:40:43" (1/1) ... [2020-09-25 00:40:43,652 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:40:43" (1/1) ... [2020-09-25 00:40:43,673 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:40:43" (1/1) ... [2020-09-25 00:40:43,674 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:40:43" (1/1) ... [2020-09-25 00:40:43,709 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:40:43" (1/1) ... [2020-09-25 00:40:43,722 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:40:43" (1/1) ... [2020-09-25 00:40:43,727 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:40:43" (1/1) ... [2020-09-25 00:40:43,735 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 00:40:43,736 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 00:40:43,736 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 00:40:43,737 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 00:40:43,738 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:40:43" (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 00:40:43,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 00:40:43,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 00:40:43,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 00:40:43,837 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 00:40:43,837 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 00:40:43,837 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 00:40:43,837 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 00:40:43,838 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 00:40:43,838 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 00:40:43,838 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 00:40:43,838 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 00:40:43,838 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 00:40:43,839 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 00:40:43,839 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 00:40:43,839 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 00:40:43,839 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 00:40:43,839 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 00:40:43,840 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 00:40:43,840 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 00:40:43,840 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-25 00:40:43,840 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 00:40:43,841 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 00:40:43,841 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 00:40:43,841 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 00:40:43,841 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 00:40:43,841 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 00:40:43,842 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 00:40:43,842 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 00:40:43,842 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 00:40:43,842 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 00:40:43,842 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 00:40:43,842 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 00:40:43,843 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 00:40:43,843 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 00:40:43,843 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 00:40:43,843 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 00:40:43,843 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 00:40:43,843 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 00:40:43,844 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-25 00:40:43,844 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-25 00:40:43,844 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 00:40:43,844 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 00:40:43,844 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 00:40:43,844 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 00:40:43,845 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 00:40:43,845 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 00:40:43,845 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 00:40:43,845 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 00:40:43,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 00:40:43,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 00:40:43,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 00:40:43,846 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 00:40:43,846 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 00:40:43,846 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 00:40:43,846 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 00:40:43,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 00:40:43,847 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 00:40:43,847 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 00:40:43,847 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 00:40:43,847 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 00:40:43,847 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 00:40:43,848 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 00:40:43,848 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 00:40:43,848 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 00:40:43,848 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 00:40:43,848 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 00:40:43,848 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 00:40:43,849 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 00:40:43,849 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-25 00:40:43,849 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 00:40:43,849 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 00:40:43,849 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 00:40:43,849 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 00:40:43,850 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 00:40:43,850 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 00:40:43,850 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 00:40:43,850 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 00:40:43,850 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 00:40:43,850 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 00:40:43,851 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 00:40:43,851 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 00:40:43,851 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 00:40:43,851 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-25 00:40:43,851 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 00:40:43,851 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 00:40:43,852 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 00:40:43,852 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 00:40:43,852 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 00:40:43,852 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-25 00:40:43,852 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 00:40:43,852 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 00:40:43,853 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 00:40:43,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 00:40:43,853 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 00:40:45,189 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 00:40:45,190 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 00:40:45,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:40:45 BoogieIcfgContainer [2020-09-25 00:40:45,198 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 00:40:45,199 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 00:40:45,199 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 00:40:45,203 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 00:40:45,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:40:42" (1/3) ... [2020-09-25 00:40:45,204 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c58ee28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:40:45, skipping insertion in model container [2020-09-25 00:40:45,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:40:43" (2/3) ... [2020-09-25 00:40:45,205 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c58ee28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:40:45, skipping insertion in model container [2020-09-25 00:40:45,205 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:40:45" (3/3) ... [2020-09-25 00:40:45,207 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product45.cil.c [2020-09-25 00:40:45,220 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 00:40:45,232 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 00:40:45,256 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 00:40:45,291 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 00:40:45,291 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 00:40:45,291 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 00:40:45,291 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 00:40:45,292 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 00:40:45,292 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 00:40:45,292 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 00:40:45,292 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 00:40:45,322 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states. [2020-09-25 00:40:45,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 00:40:45,341 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:40:45,343 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:40:45,343 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:40:45,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:40:45,350 INFO L82 PathProgramCache]: Analyzing trace with hash 1778587784, now seen corresponding path program 1 times [2020-09-25 00:40:45,360 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:40:45,360 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1372517256] [2020-09-25 00:40:45,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:40:45,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:45,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:46,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:46,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:47,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:48,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:50,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:50,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 00:40:50,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 00:40:50,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5062 [2020-09-25 00:40:50,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:50,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:40:50,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 145 [2020-09-25 00:40:50,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 00:40:50,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 00:40:51,410 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:40:51,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:40:51,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:51,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:51,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:51,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 00:40:51,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:51,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 166 [2020-09-25 00:40:51,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:51,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:51,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:51,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:51,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:40:51,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 00:40:51,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:51,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:51,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:51,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:40:51,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:51,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 00:40:51,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:51,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:51,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:51,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:51,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:40:51,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 00:40:51,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:51,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:51,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:51,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:40:51,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:51,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:40:51,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:51,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:51,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:51,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:51,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:40:51,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 00:40:51,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:51,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:51,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:51,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:40:51,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:51,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:40:51,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:51,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:51,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:51,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:51,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:40:51,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 00:40:51,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:51,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:51,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:51,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:40:51,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:51,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:40:51,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:51,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:51,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:51,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:51,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:40:51,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 00:40:51,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:51,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:51,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:51,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:40:51,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:51,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:40:51,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:51,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:51,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:51,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:51,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:40:51,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 00:40:51,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:51,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:51,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:51,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:40:51,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:51,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 00:40:51,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:51,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:40:51,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:51,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:40:51,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:40:51,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 00:40:51,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:51,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:51,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:51,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:40:51,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:51,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-25 00:40:51,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:51,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:40:51,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:51,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:40:51,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:51,973 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 00:40:51,974 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1372517256] [2020-09-25 00:40:51,976 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:40:51,976 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 00:40:51,977 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365529519] [2020-09-25 00:40:51,984 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 00:40:51,985 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:40:52,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 00:40:52,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 00:40:52,008 INFO L87 Difference]: Start difference. First operand 319 states. Second operand 9 states. [2020-09-25 00:40:52,684 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 00:40:54,097 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 00:40:54,379 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 00:40:54,654 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 00:40:54,954 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 00:40:55,263 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 00:40:56,172 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 00:40:56,483 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 00:40:56,814 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:40:57,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:40:57,493 INFO L93 Difference]: Finished difference Result 611 states and 750 transitions. [2020-09-25 00:40:57,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 00:40:57,495 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 148 [2020-09-25 00:40:57,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:40:57,517 INFO L225 Difference]: With dead ends: 611 [2020-09-25 00:40:57,517 INFO L226 Difference]: Without dead ends: 416 [2020-09-25 00:40:57,524 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2020-09-25 00:40:57,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2020-09-25 00:40:57,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 366. [2020-09-25 00:40:57,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 366 states. [2020-09-25 00:40:57,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 410 transitions. [2020-09-25 00:40:57,708 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 410 transitions. Word has length 148 [2020-09-25 00:40:57,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:40:57,712 INFO L479 AbstractCegarLoop]: Abstraction has 366 states and 410 transitions. [2020-09-25 00:40:57,713 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 00:40:57,713 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 410 transitions. [2020-09-25 00:40:57,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2020-09-25 00:40:57,730 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:40:57,730 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:40:57,731 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 00:40:57,731 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:40:57,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:40:57,731 INFO L82 PathProgramCache]: Analyzing trace with hash -742706955, now seen corresponding path program 1 times [2020-09-25 00:40:57,732 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:40:57,732 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1983540086] [2020-09-25 00:40:57,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:40:57,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:57,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:58,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:59,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:59,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:02,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:02,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 258 [2020-09-25 00:41:02,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 00:41:02,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-09-25 00:41:02,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:02,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 00:41:02,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 198 [2020-09-25 00:41:02,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-25 00:41:02,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:03,188 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:41:03,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:41:03,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:03,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:03,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:03,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 00:41:03,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:03,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-09-25 00:41:03,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:03,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:03,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:03,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:03,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:03,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 00:41:03,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:03,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:03,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:03,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:41:03,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:03,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:41:03,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:03,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:03,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:03,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:03,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:03,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 00:41:03,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:03,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:03,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:03,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:41:03,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:03,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:41:03,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:03,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:03,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:03,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:03,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:03,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 00:41:03,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:03,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:03,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:03,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:41:03,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:03,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:41:03,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:03,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:03,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:03,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:03,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:03,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 00:41:03,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:03,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:03,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:03,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:41:03,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:03,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:41:03,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:03,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:03,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:03,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:03,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:03,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 00:41:03,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:03,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:03,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:03,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:41:03,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:03,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:41:03,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:03,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:03,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:03,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:03,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:03,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-25 00:41:03,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:03,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:03,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:04,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:04,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 00:41:04,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:41:04,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 985 [2020-09-25 00:41:04,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:04,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:41:04,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 00:41:04,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:41:04,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 00:41:04,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:41:04,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:04,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:04,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:04,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 00:41:04,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:04,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-09-25 00:41:04,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:04,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:41:04,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 00:41:04,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:41:04,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:04,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:41:04,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:04,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:04,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:04,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 00:41:04,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:04,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 00:41:04,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:04,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:41:04,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:04,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 00:41:04,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:04,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:41:04,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:04,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:04,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:04,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:41:04,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:04,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 00:41:04,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:04,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:04,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:04,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:04,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:41:04,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 00:41:04,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:04,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:04,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:04,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 00:41:04,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:04,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 00:41:04,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:04,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:04,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-25 00:41:04,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:04,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:41:04,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 00:41:04,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:04,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:04,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:04,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 00:41:04,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:04,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:41:04,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:04,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:04,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:04,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:04,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:41:04,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 00:41:04,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:04,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:04,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:04,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:41:04,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:04,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:41:04,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:04,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:04,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:04,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:04,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:04,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-25 00:41:04,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:04,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:04,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:04,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:41:04,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:04,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:41:04,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:04,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:04,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:04,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:04,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:04,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2020-09-25 00:41:04,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:04,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:04,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:04,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:41:04,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:04,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 00:41:04,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:04,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:41:04,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:04,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:41:04,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:41:04,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2020-09-25 00:41:04,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:04,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:04,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:04,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:41:04,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:04,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:41:04,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:04,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:04,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:41:04,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:04,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:04,850 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 00:41:04,850 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1983540086] [2020-09-25 00:41:04,850 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:41:04,851 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-09-25 00:41:04,851 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585505175] [2020-09-25 00:41:04,855 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-25 00:41:04,856 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:41:04,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-25 00:41:04,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2020-09-25 00:41:04,857 INFO L87 Difference]: Start difference. First operand 366 states and 410 transitions. Second operand 15 states. [2020-09-25 00:41:05,482 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 00:41:06,557 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 00:41:06,921 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 00:41:07,318 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 00:41:07,666 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 00:41:07,985 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 00:41:08,546 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 00:41:08,886 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 00:41:09,225 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 00:41:09,600 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-09-25 00:41:09,951 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-09-25 00:41:10,311 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 00:41:10,613 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:41:11,013 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 00:41:11,336 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 00:41:11,937 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 00:41:12,277 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-25 00:41:12,637 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-09-25 00:41:12,984 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:41:13,324 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 00:41:13,639 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:41:15,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:41:15,579 INFO L93 Difference]: Finished difference Result 1006 states and 1299 transitions. [2020-09-25 00:41:15,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-09-25 00:41:15,580 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 209 [2020-09-25 00:41:15,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:41:15,589 INFO L225 Difference]: With dead ends: 1006 [2020-09-25 00:41:15,590 INFO L226 Difference]: Without dead ends: 721 [2020-09-25 00:41:15,596 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 311 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=312, Invalid=1410, Unknown=0, NotChecked=0, Total=1722 [2020-09-25 00:41:15,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 721 states. [2020-09-25 00:41:15,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 721 to 594. [2020-09-25 00:41:15,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 594 states. [2020-09-25 00:41:15,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 594 states to 594 states and 677 transitions. [2020-09-25 00:41:15,702 INFO L78 Accepts]: Start accepts. Automaton has 594 states and 677 transitions. Word has length 209 [2020-09-25 00:41:15,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:41:15,703 INFO L479 AbstractCegarLoop]: Abstraction has 594 states and 677 transitions. [2020-09-25 00:41:15,703 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-25 00:41:15,703 INFO L276 IsEmpty]: Start isEmpty. Operand 594 states and 677 transitions. [2020-09-25 00:41:15,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2020-09-25 00:41:15,707 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:41:15,708 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:41:15,708 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 00:41:15,708 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:41:15,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:41:15,709 INFO L82 PathProgramCache]: Analyzing trace with hash 2068995148, now seen corresponding path program 1 times [2020-09-25 00:41:15,709 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:41:15,709 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2041178891] [2020-09-25 00:41:15,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:41:15,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:15,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:15,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:19,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:20,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:20,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:20,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 272 [2020-09-25 00:41:20,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 00:41:20,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 00:41:20,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:20,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 00:41:20,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 212 [2020-09-25 00:41:20,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-25 00:41:20,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:21,132 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:41:21,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:41:21,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:21,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:21,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:21,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 00:41:21,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:21,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-09-25 00:41:21,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:21,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:21,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:21,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:21,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:21,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 00:41:21,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:21,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:21,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:21,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:41:21,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:21,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:41:21,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:21,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:21,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:21,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:21,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:21,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 00:41:21,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:21,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:21,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:21,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:41:21,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:21,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:41:21,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:21,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:21,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:21,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:21,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:21,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 00:41:21,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:21,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:21,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:21,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:41:21,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:21,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:41:21,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:21,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:21,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:21,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:21,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:41:21,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 00:41:21,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:21,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:21,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:21,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:41:21,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:21,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:41:21,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:21,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:21,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:21,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:21,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:41:21,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 00:41:21,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:21,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:21,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:21,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:41:21,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:21,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-25 00:41:21,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:21,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:21,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:21,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:21,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:21,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 00:41:21,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:21,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:21,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:21,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 00:41:21,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:21,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:41:21,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:21,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:21,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:21,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:21,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:21,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-25 00:41:21,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:21,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:21,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:22,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:22,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 00:41:22,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:41:22,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 688 [2020-09-25 00:41:22,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:22,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:41:22,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 00:41:22,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:41:22,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:22,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:41:22,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:22,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:22,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:22,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 00:41:22,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:22,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-09-25 00:41:22,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:22,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:41:22,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 00:41:22,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:41:22,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:22,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:41:22,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:22,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:22,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:22,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 00:41:22,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:22,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 00:41:22,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:22,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:41:22,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 00:41:22,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:41:22,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:22,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:41:22,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:22,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:22,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:22,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:41:22,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:22,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 00:41:22,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:22,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:41:22,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:22,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:41:22,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:41:22,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 00:41:22,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:22,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:22,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:22,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 00:41:22,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:22,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 00:41:22,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:22,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:22,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-25 00:41:22,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:22,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:22,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 00:41:22,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:22,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:22,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:22,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 00:41:22,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:22,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:41:22,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:22,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:22,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:22,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:22,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:22,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 00:41:22,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:22,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:22,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:22,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:41:22,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:22,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:41:22,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:22,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:22,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:22,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:22,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:22,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-25 00:41:22,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:22,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:22,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:22,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:41:22,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:22,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:41:22,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:22,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:22,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:22,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:22,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:22,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-09-25 00:41:22,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:22,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:22,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:22,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:41:22,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:22,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 00:41:22,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:22,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:41:22,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:22,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:41:22,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:22,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2020-09-25 00:41:22,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:22,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:22,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:22,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:41:22,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:22,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:41:22,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:22,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:22,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:41:22,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:22,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:22,448 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 00:41:22,449 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2041178891] [2020-09-25 00:41:22,449 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:41:22,449 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-09-25 00:41:22,450 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314817033] [2020-09-25 00:41:22,451 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-25 00:41:22,451 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:41:22,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-25 00:41:22,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2020-09-25 00:41:22,452 INFO L87 Difference]: Start difference. First operand 594 states and 677 transitions. Second operand 15 states. [2020-09-25 00:41:23,026 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 00:41:24,286 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 00:41:24,605 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 00:41:24,968 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 00:41:25,276 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 00:41:25,596 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-25 00:41:25,888 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 00:41:26,202 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 00:41:26,582 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 00:41:26,933 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 00:41:27,305 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 00:41:27,636 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 00:41:27,961 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:41:28,309 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 00:41:28,609 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 00:41:28,936 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 00:41:29,314 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:41:29,701 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 00:41:30,029 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:41:32,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:41:32,373 INFO L93 Difference]: Finished difference Result 1281 states and 1599 transitions. [2020-09-25 00:41:32,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-09-25 00:41:32,378 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 223 [2020-09-25 00:41:32,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:41:32,385 INFO L225 Difference]: With dead ends: 1281 [2020-09-25 00:41:32,385 INFO L226 Difference]: Without dead ends: 802 [2020-09-25 00:41:32,388 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 486 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=464, Invalid=1698, Unknown=0, NotChecked=0, Total=2162 [2020-09-25 00:41:32,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 802 states. [2020-09-25 00:41:32,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 802 to 606. [2020-09-25 00:41:32,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 606 states. [2020-09-25 00:41:32,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 606 states to 606 states and 689 transitions. [2020-09-25 00:41:32,476 INFO L78 Accepts]: Start accepts. Automaton has 606 states and 689 transitions. Word has length 223 [2020-09-25 00:41:32,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:41:32,477 INFO L479 AbstractCegarLoop]: Abstraction has 606 states and 689 transitions. [2020-09-25 00:41:32,477 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-25 00:41:32,477 INFO L276 IsEmpty]: Start isEmpty. Operand 606 states and 689 transitions. [2020-09-25 00:41:32,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2020-09-25 00:41:32,482 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:41:32,483 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:41:32,483 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 00:41:32,483 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:41:32,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:41:32,484 INFO L82 PathProgramCache]: Analyzing trace with hash 628953650, now seen corresponding path program 1 times [2020-09-25 00:41:32,484 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:41:32,484 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1305259397] [2020-09-25 00:41:32,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:41:32,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:32,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:32,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:32,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:32,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:32,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:33,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking...