/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product62.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 01:54:41,083 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 01:54:41,088 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 01:54:41,134 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 01:54:41,136 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 01:54:41,148 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 01:54:41,150 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 01:54:41,154 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 01:54:41,157 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 01:54:41,161 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 01:54:41,162 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 01:54:41,166 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 01:54:41,166 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 01:54:41,169 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 01:54:41,172 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 01:54:41,174 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 01:54:41,176 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 01:54:41,177 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 01:54:41,179 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 01:54:41,189 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 01:54:41,192 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 01:54:41,193 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 01:54:41,194 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 01:54:41,195 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 01:54:41,199 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 01:54:41,199 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 01:54:41,200 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 01:54:41,203 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 01:54:41,204 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 01:54:41,206 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 01:54:41,206 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 01:54:41,207 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 01:54:41,208 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 01:54:41,209 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 01:54:41,210 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 01:54:41,210 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 01:54:41,211 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 01:54:41,212 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 01:54:41,212 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 01:54:41,213 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 01:54:41,215 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 01:54:41,216 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 01:54:41,266 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 01:54:41,266 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 01:54:41,269 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 01:54:41,269 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 01:54:41,269 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 01:54:41,270 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 01:54:41,270 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 01:54:41,270 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 01:54:41,271 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 01:54:41,271 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 01:54:41,272 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 01:54:41,272 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 01:54:41,272 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 01:54:41,273 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 01:54:41,273 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 01:54:41,273 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 01:54:41,273 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 01:54:41,273 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 01:54:41,274 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 01:54:41,274 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 01:54:41,274 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 01:54:41,274 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 01:54:41,275 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 01:54:41,275 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 01:54:41,275 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 01:54:41,275 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 01:54:41,275 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 01:54:41,276 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 01:54:41,276 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 01:54:41,276 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; [2020-09-25 01:54:41,771 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 01:54:41,795 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 01:54:41,799 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 01:54:41,801 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 01:54:41,801 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 01:54:41,803 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product62.cil.c [2020-09-25 01:54:41,893 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bf6543082/b5f22256c71f4a80b9638f2214c66ea2/FLAG6c911efd1 [2020-09-25 01:54:42,495 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 01:54:42,496 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product62.cil.c [2020-09-25 01:54:42,511 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bf6543082/b5f22256c71f4a80b9638f2214c66ea2/FLAG6c911efd1 [2020-09-25 01:54:42,794 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bf6543082/b5f22256c71f4a80b9638f2214c66ea2 [2020-09-25 01:54:42,806 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 01:54:42,811 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 01:54:42,812 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 01:54:42,812 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 01:54:42,818 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 01:54:42,819 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:54:42" (1/1) ... [2020-09-25 01:54:42,824 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fc06ef1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:54:42, skipping insertion in model container [2020-09-25 01:54:42,824 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:54:42" (1/1) ... [2020-09-25 01:54:42,834 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 01:54:42,891 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 01:54:43,380 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:54:43,396 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 01:54:43,489 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:54:43,542 INFO L208 MainTranslator]: Completed translation [2020-09-25 01:54:43,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:54:43 WrapperNode [2020-09-25 01:54:43,544 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 01:54:43,545 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 01:54:43,545 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 01:54:43,545 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 01:54:43,563 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:54:43" (1/1) ... [2020-09-25 01:54:43,565 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:54:43" (1/1) ... [2020-09-25 01:54:43,585 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:54:43" (1/1) ... [2020-09-25 01:54:43,586 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:54:43" (1/1) ... [2020-09-25 01:54:43,621 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:54:43" (1/1) ... [2020-09-25 01:54:43,635 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:54:43" (1/1) ... [2020-09-25 01:54:43,647 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:54:43" (1/1) ... [2020-09-25 01:54:43,658 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 01:54:43,659 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 01:54:43,659 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 01:54:43,659 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 01:54:43,660 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:54:43" (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 01:54:43,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 01:54:43,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 01:54:43,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 01:54:43,743 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 01:54:43,743 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 01:54:43,743 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 01:54:43,743 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 01:54:43,743 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 01:54:43,744 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 01:54:43,744 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 01:54:43,744 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 01:54:43,744 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 01:54:43,744 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 01:54:43,745 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 01:54:43,745 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 01:54:43,745 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 01:54:43,745 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 01:54:43,745 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 01:54:43,746 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 01:54:43,746 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-25 01:54:43,746 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 01:54:43,746 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 01:54:43,747 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 01:54:43,747 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 01:54:43,747 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 01:54:43,747 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 01:54:43,747 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 01:54:43,747 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 01:54:43,748 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 01:54:43,748 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 01:54:43,748 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 01:54:43,748 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 01:54:43,748 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 01:54:43,748 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 01:54:43,749 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 01:54:43,749 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 01:54:43,749 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 01:54:43,749 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 01:54:43,749 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 01:54:43,749 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 01:54:43,749 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 01:54:43,750 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 01:54:43,750 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 01:54:43,750 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 01:54:43,750 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 01:54:43,750 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 01:54:43,750 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 01:54:43,751 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 01:54:43,751 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 01:54:43,751 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 01:54:43,751 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 01:54:43,751 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 01:54:43,751 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 01:54:43,752 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 01:54:43,752 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 01:54:43,752 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 01:54:43,752 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 01:54:43,752 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 01:54:43,752 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 01:54:43,753 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 01:54:43,753 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 01:54:43,753 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 01:54:43,753 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-25 01:54:43,753 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 01:54:43,753 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 01:54:43,754 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 01:54:43,754 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 01:54:43,754 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 01:54:43,754 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 01:54:43,754 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 01:54:43,754 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 01:54:43,755 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 01:54:43,755 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 01:54:43,755 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 01:54:43,755 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 01:54:43,755 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 01:54:43,755 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 01:54:43,756 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 01:54:43,756 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 01:54:43,756 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 01:54:43,756 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 01:54:43,756 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 01:54:43,756 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 01:54:43,757 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 01:54:43,757 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 01:54:43,757 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 01:54:43,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 01:54:43,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 01:54:43,757 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 01:54:43,758 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 01:54:43,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 01:54:43,758 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 01:54:43,758 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 01:54:43,758 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 01:54:43,758 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 01:54:43,758 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 01:54:43,759 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 01:54:43,759 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 01:54:43,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 01:54:43,759 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 01:54:44,978 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 01:54:44,978 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 01:54:44,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:54:44 BoogieIcfgContainer [2020-09-25 01:54:44,986 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 01:54:44,988 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 01:54:44,988 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 01:54:44,992 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 01:54:44,992 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:54:42" (1/3) ... [2020-09-25 01:54:44,993 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fe4e7a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:54:44, skipping insertion in model container [2020-09-25 01:54:44,993 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:54:43" (2/3) ... [2020-09-25 01:54:44,993 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fe4e7a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:54:44, skipping insertion in model container [2020-09-25 01:54:44,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:54:44" (3/3) ... [2020-09-25 01:54:44,996 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product62.cil.c [2020-09-25 01:54:45,008 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 01:54:45,019 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 01:54:45,039 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 01:54:45,071 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 01:54:45,071 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 01:54:45,071 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 01:54:45,071 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 01:54:45,072 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 01:54:45,072 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 01:54:45,072 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 01:54:45,072 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 01:54:45,103 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states. [2020-09-25 01:54:45,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 01:54:45,122 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:54:45,123 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:54:45,124 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:54:45,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:54:45,132 INFO L82 PathProgramCache]: Analyzing trace with hash 1052921660, now seen corresponding path program 1 times [2020-09-25 01:54:45,142 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:54:45,143 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1629195827] [2020-09-25 01:54:45,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:54:45,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:54:45,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:54:45,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:54:47,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:54:48,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:54:50,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:54:50,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 01:54:50,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 01:54:50,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 01:54:50,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:54:50,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:54:50,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 01:54:50,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:54:50,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 01:54:50,904 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:54:50,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:54:50,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:54:50,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:54:51,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:54:51,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:54:51,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:54:51,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-09-25 01:54:51,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:54:51,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:54:51,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:54:51,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:54:51,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:54:51,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:54:51,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:54:51,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:54:51,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:54:51,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:54:51,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:54:51,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:54:51,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:54:51,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:54:51,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:54:51,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:54:51,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:54:51,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:54:51,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:54:51,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:54:51,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:54:51,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:54:51,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:54:51,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:54:51,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:54:51,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:54:51,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:54:51,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:54:51,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:54:51,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:54:51,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:54:51,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:54:51,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:54:51,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:54:51,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:54:51,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 01:54:51,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:54:51,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:54:51,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:54:51,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:54:51,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:54:51,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:54:51,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:54:51,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:54:51,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:54:51,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:54:51,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:54:51,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:54:51,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:54:51,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:54:51,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:54:51,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:54:51,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:54:51,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 01:54:51,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:54:51,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:54:51,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:54:51,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:54:51,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:54:51,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:54:51,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:54:51,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:54:51,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:54:51,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:54:51,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:54:51,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 01:54:51,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:54:51,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:54:51,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:54:51,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:54:51,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:54:51,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:54:51,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:54:51,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:54:51,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:54:51,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:54:51,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:54:51,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:54:51,254 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1629195827] [2020-09-25 01:54:51,256 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:54:51,256 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 01:54:51,257 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145240489] [2020-09-25 01:54:51,267 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 01:54:51,267 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:54:51,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 01:54:51,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 01:54:51,291 INFO L87 Difference]: Start difference. First operand 350 states. Second operand 3 states. [2020-09-25 01:54:53,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:54:53,010 INFO L93 Difference]: Finished difference Result 570 states and 675 transitions. [2020-09-25 01:54:53,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 01:54:53,013 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-25 01:54:53,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:54:53,034 INFO L225 Difference]: With dead ends: 570 [2020-09-25 01:54:53,035 INFO L226 Difference]: Without dead ends: 345 [2020-09-25 01:54:53,041 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 01:54:53,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2020-09-25 01:54:53,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 299. [2020-09-25 01:54:53,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2020-09-25 01:54:53,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 327 transitions. [2020-09-25 01:54:53,161 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 327 transitions. Word has length 142 [2020-09-25 01:54:53,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:54:53,163 INFO L479 AbstractCegarLoop]: Abstraction has 299 states and 327 transitions. [2020-09-25 01:54:53,163 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 01:54:53,163 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 327 transitions. [2020-09-25 01:54:53,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-25 01:54:53,168 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:54:53,169 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:54:53,169 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 01:54:53,169 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:54:53,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:54:53,170 INFO L82 PathProgramCache]: Analyzing trace with hash 277442402, now seen corresponding path program 1 times [2020-09-25 01:54:53,170 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:54:53,170 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [596807836] [2020-09-25 01:54:53,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:54:53,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:54:53,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:54:53,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:54:54,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:54:55,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:54:56,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:54:58,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:54:58,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 01:54:58,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 01:54:58,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5039 [2020-09-25 01:54:58,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:54:58,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:54:58,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 01:54:58,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 01:54:58,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:54:58,567 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:54:58,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:54:58,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:54:58,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:54:58,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:54:58,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:54:58,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:54:58,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-09-25 01:54:58,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:54:58,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:54:58,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:54:58,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:54:58,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:54:58,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:54:58,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:54:58,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:54:58,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:54:58,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:54:58,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:54:58,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:54:58,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:54:58,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:54:58,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:54:58,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:54:58,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:54:58,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:54:58,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:54:58,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:54:58,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:54:58,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:54:58,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:54:58,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:54:58,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:54:58,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:54:58,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:54:58,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:54:58,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:54:58,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:54:58,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:54:58,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:54:58,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:54:58,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:54:58,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:54:58,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:54:58,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:54:58,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:54:58,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:54:58,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:54:58,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:54:58,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:54:58,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:54:58,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:54:58,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:54:58,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:54:58,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:54:58,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:54:58,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:54:58,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:54:58,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:54:58,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:54:58,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:54:58,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 01:54:58,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:54:58,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:54:58,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:54:58,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:54:58,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:54:58,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:54:58,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:54:58,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:54:58,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:54:58,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:54:58,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:54:58,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 01:54:58,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:54:58,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:54:58,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:54:58,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:54:58,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:54:58,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:54:58,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:54:58,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:54:58,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:54:58,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:54:58,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:54:58,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:54:58,780 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [596807836] [2020-09-25 01:54:58,781 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:54:58,781 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 01:54:58,781 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285246999] [2020-09-25 01:54:58,784 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 01:54:58,785 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:54:58,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 01:54:58,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 01:54:58,785 INFO L87 Difference]: Start difference. First operand 299 states and 327 transitions. Second operand 4 states. [2020-09-25 01:54:59,449 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:55:00,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:55:00,925 INFO L93 Difference]: Finished difference Result 483 states and 546 transitions. [2020-09-25 01:55:00,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 01:55:00,926 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-25 01:55:00,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:55:00,931 INFO L225 Difference]: With dead ends: 483 [2020-09-25 01:55:00,932 INFO L226 Difference]: Without dead ends: 328 [2020-09-25 01:55:00,934 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 01:55:00,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2020-09-25 01:55:00,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 289. [2020-09-25 01:55:00,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 289 states. [2020-09-25 01:55:00,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 314 transitions. [2020-09-25 01:55:00,988 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 314 transitions. Word has length 143 [2020-09-25 01:55:00,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:55:00,989 INFO L479 AbstractCegarLoop]: Abstraction has 289 states and 314 transitions. [2020-09-25 01:55:00,989 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 01:55:00,989 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 314 transitions. [2020-09-25 01:55:00,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-25 01:55:00,992 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:55:00,993 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:55:00,993 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 01:55:00,993 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:55:00,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:55:00,994 INFO L82 PathProgramCache]: Analyzing trace with hash -863874740, now seen corresponding path program 1 times [2020-09-25 01:55:00,994 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:55:00,995 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1182533135] [2020-09-25 01:55:00,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:55:01,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:55:01,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:01,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:02,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:03,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:06,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:55:06,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 01:55:06,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 01:55:06,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5046 [2020-09-25 01:55:06,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:55:06,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:55:06,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 01:55:06,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 01:55:06,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 01:55:06,391 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:55:06,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:55:06,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:55:06,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:06,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:55:06,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:55:06,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:55:06,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-09-25 01:55:06,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:55:06,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:55:06,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:55:06,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:55:06,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:55:06,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:55:06,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:55:06,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:06,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:55:06,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:55:06,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:55:06,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:55:06,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:55:06,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:55:06,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:55:06,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:55:06,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:55:06,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:55:06,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:55:06,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:06,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:55:06,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:55:06,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:55:06,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:55:06,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:55:06,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:55:06,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:55:06,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:55:06,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:55:06,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:55:06,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:55:06,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:06,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:55:06,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:55:06,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:55:06,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:55:06,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:55:06,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:55:06,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:55:06,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:55:06,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:55:06,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:55:06,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:55:06,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:06,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:55:06,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:55:06,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:55:06,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:55:06,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:55:06,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:55:06,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:55:06,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:55:06,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:55:06,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 01:55:06,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:55:06,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:06,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:55:06,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:55:06,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:55:06,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:55:06,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:55:06,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:55:06,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:55:06,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 01:55:06,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:55:06,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 01:55:06,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:55:06,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:06,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:55:06,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:55:06,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:55:06,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 01:55:06,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:55:06,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:55:06,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:55:06,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:55:06,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 01:55:06,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 01:55:06,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:55:06,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:06,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:55:06,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:55:06,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:55:06,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 01:55:06,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:55:06,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:55:06,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:55:06,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:55:06,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 01:55:06,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:55:06,747 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1182533135] [2020-09-25 01:55:06,747 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:55:06,747 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 01:55:06,748 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657154040] [2020-09-25 01:55:06,748 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 01:55:06,749 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:55:06,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 01:55:06,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 01:55:06,750 INFO L87 Difference]: Start difference. First operand 289 states and 314 transitions. Second operand 5 states. [2020-09-25 01:55:07,430 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:55:08,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:55:08,575 INFO L93 Difference]: Finished difference Result 529 states and 608 transitions. [2020-09-25 01:55:08,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 01:55:08,582 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2020-09-25 01:55:08,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:55:08,588 INFO L225 Difference]: With dead ends: 529 [2020-09-25 01:55:08,589 INFO L226 Difference]: Without dead ends: 350 [2020-09-25 01:55:08,590 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 01:55:08,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2020-09-25 01:55:08,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 289. [2020-09-25 01:55:08,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 289 states. [2020-09-25 01:55:08,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 313 transitions. [2020-09-25 01:55:08,660 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 313 transitions. Word has length 156 [2020-09-25 01:55:08,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:55:08,663 INFO L479 AbstractCegarLoop]: Abstraction has 289 states and 313 transitions. [2020-09-25 01:55:08,664 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 01:55:08,664 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 313 transitions. [2020-09-25 01:55:08,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-09-25 01:55:08,670 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:55:08,670 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:55:08,671 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 01:55:08,671 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:55:08,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:55:08,672 INFO L82 PathProgramCache]: Analyzing trace with hash 1152669890, now seen corresponding path program 1 times [2020-09-25 01:55:08,672 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:55:08,672 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1132979065] [2020-09-25 01:55:08,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:55:08,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:55:08,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:08,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:09,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:09,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:12,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:12,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:13,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:13,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:13,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:13,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:55:13,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 213 [2020-09-25 01:55:13,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 01:55:13,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5036 [2020-09-25 01:55:13,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:55:13,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 01:55:13,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 163 [2020-09-25 01:55:13,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 01:55:13,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:55:14,084 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:55:14,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:55:14,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:55:14,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:14,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:55:14,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:55:14,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:55:14,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-09-25 01:55:14,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:55:14,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:55:14,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:55:14,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:55:14,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:55:14,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:55:14,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:55:14,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:14,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:55:14,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:55:14,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:55:14,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:55:14,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:55:14,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:55:14,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:55:14,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:55:14,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:55:14,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:55:14,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:55:14,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:14,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:55:14,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:55:14,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:55:14,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:55:14,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:55:14,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:55:14,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:55:14,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:55:14,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:55:14,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:55:14,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:55:14,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:14,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:55:14,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:55:14,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:55:14,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:55:14,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:55:14,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:55:14,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:55:14,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:55:14,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:55:14,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:55:14,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:55:14,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:14,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:55:14,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:55:14,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:55:14,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:55:14,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:55:14,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:55:14,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:55:14,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:55:14,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:55:14,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 01:55:14,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:55:14,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:14,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:55:14,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:55:14,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:55:14,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:55:14,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:55:14,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:55:14,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:55:14,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:55:14,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:55:14,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 01:55:14,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:55:14,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:14,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:14,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:55:14,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 01:55:14,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 01:55:14,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 01:55:14,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:55:14,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 01:55:14,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-25 01:55:14,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 01:55:14,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:55:14,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:55:14,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:55:14,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:14,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:55:14,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 01:55:14,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:55:14,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 01:55:14,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:55:14,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 01:55:14,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 01:55:14,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 01:55:14,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:55:14,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:55:14,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:55:14,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:14,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:55:14,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 01:55:14,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:55:14,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 01:55:14,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:55:14,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 01:55:14,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 01:55:14,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 01:55:14,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:55:14,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:55:14,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:55:14,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:14,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:55:14,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:55:14,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:55:14,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:55:14,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:55:14,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:55:14,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:55:14,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 01:55:14,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:55:14,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-09-25 01:55:14,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:55:14,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:14,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:55:14,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:55:14,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:55:14,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:55:14,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:55:14,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:55:14,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:55:14,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:55:14,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:55:14,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-09-25 01:55:14,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:55:14,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:14,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:55:14,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:55:14,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:55:14,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:55:14,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:55:14,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:55:14,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:55:14,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:55:14,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:55:14,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:55:14,472 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1132979065] [2020-09-25 01:55:14,473 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:55:14,473 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 01:55:14,473 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346798326] [2020-09-25 01:55:14,474 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 01:55:14,474 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:55:14,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 01:55:14,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 01:55:14,475 INFO L87 Difference]: Start difference. First operand 289 states and 313 transitions. Second operand 7 states. [2020-09-25 01:55:15,120 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:55:16,941 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:55:18,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:55:18,154 INFO L93 Difference]: Finished difference Result 728 states and 857 transitions. [2020-09-25 01:55:18,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 01:55:18,155 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 174 [2020-09-25 01:55:18,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:55:18,160 INFO L225 Difference]: With dead ends: 728 [2020-09-25 01:55:18,160 INFO L226 Difference]: Without dead ends: 549 [2020-09-25 01:55:18,161 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-09-25 01:55:18,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2020-09-25 01:55:18,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 422. [2020-09-25 01:55:18,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 422 states. [2020-09-25 01:55:18,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 452 transitions. [2020-09-25 01:55:18,225 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 452 transitions. Word has length 174 [2020-09-25 01:55:18,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:55:18,225 INFO L479 AbstractCegarLoop]: Abstraction has 422 states and 452 transitions. [2020-09-25 01:55:18,225 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 01:55:18,226 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 452 transitions. [2020-09-25 01:55:18,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2020-09-25 01:55:18,228 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:55:18,228 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:55:18,229 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 01:55:18,229 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:55:18,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:55:18,229 INFO L82 PathProgramCache]: Analyzing trace with hash 1132790830, now seen corresponding path program 1 times [2020-09-25 01:55:18,229 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:55:18,230 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [933363754] [2020-09-25 01:55:18,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:55:18,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:55:18,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:19,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:19,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:19,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:20,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:20,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:23,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:55:23,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 241 [2020-09-25 01:55:23,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 01:55:23,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-09-25 01:55:23,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:55:23,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 01:55:23,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 168 [2020-09-25 01:55:23,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 01:55:23,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:55:23,633 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:55:23,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:55:23,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:55:23,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:23,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:55:23,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:55:23,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:55:23,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-09-25 01:55:23,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:55:23,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:55:23,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:55:23,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:55:23,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:55:23,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:55:23,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:55:23,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:23,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:55:23,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:55:23,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:55:23,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:55:23,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:55:23,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:55:23,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:55:23,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:55:23,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:55:23,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:55:23,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:55:23,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:23,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:55:23,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:55:23,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:55:23,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:55:23,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:55:23,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:55:23,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:55:23,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:55:23,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:55:23,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:55:23,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:55:23,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:23,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:55:23,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:55:23,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:55:23,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:55:23,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:55:23,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:55:23,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:55:23,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:55:23,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:55:23,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:55:23,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:55:23,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:23,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:55:23,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:55:23,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:55:23,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:55:23,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:55:23,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:55:23,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:55:23,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:55:23,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:55:23,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 01:55:23,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:55:23,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:23,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:55:23,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:55:23,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:55:23,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:55:23,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:55:23,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:55:23,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:55:23,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:55:23,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:55:23,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 01:55:23,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:55:23,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:23,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:23,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:24,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:55:24,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-09-25 01:55:24,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 01:55:24,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 202 [2020-09-25 01:55:24,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:55:24,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 01:55:24,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:55:24,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 01:55:24,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:55:24,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:55:24,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:55:24,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:24,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:24,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:55:24,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 01:55:24,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 01:55:24,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-09-25 01:55:24,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:55:24,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 01:55:24,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:55:24,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 01:55:24,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:55:24,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:55:24,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:55:24,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:24,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:24,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:55:24,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 01:55:24,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 01:55:24,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-09-25 01:55:24,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:55:24,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:55:24,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:55:24,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 01:55:24,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:55:24,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:55:24,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:55:24,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:24,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:55:24,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 01:55:24,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:55:24,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-25 01:55:24,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:55:24,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:55:24,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:55:24,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 01:55:24,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:55:24,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 01:55:24,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:55:24,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:24,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:55:24,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 01:55:24,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:55:24,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:55:24,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:55:24,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:55:24,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:55:24,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:55:24,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:55:24,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 01:55:24,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:55:24,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:24,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:55:24,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:55:24,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:55:24,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:55:24,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:55:24,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:55:24,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:55:24,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 01:55:24,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:55:24,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2020-09-25 01:55:24,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:55:24,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:24,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:55:24,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:55:24,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:55:24,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:55:24,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:55:24,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:55:24,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:55:24,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:55:24,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:55:24,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2020-09-25 01:55:24,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:55:24,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:24,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:55:24,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:55:24,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:55:24,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 01:55:24,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:55:24,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:55:24,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:55:24,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:55:24,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:55:24,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:55:24,541 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [933363754] [2020-09-25 01:55:24,542 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:55:24,542 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 01:55:24,542 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104905525] [2020-09-25 01:55:24,543 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 01:55:24,544 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:55:24,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 01:55:24,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 01:55:24,545 INFO L87 Difference]: Start difference. First operand 422 states and 452 transitions. Second operand 10 states. [2020-09-25 01:55:25,126 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:55:26,877 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:55:27,263 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 01:55:27,613 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:55:27,942 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 01:55:28,281 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:55:28,738 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:55:29,051 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:55:29,394 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 190