/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=SHALLOWEST --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_product63.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 23:39:54,165 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 23:39:54,168 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 23:39:54,194 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 23:39:54,194 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 23:39:54,195 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 23:39:54,197 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 23:39:54,199 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 23:39:54,200 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 23:39:54,202 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 23:39:54,203 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 23:39:54,204 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 23:39:54,204 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 23:39:54,206 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 23:39:54,207 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 23:39:54,208 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 23:39:54,209 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 23:39:54,210 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 23:39:54,212 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 23:39:54,214 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 23:39:54,216 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 23:39:54,217 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 23:39:54,218 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 23:39:54,219 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 23:39:54,221 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 23:39:54,222 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 23:39:54,222 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 23:39:54,223 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 23:39:54,223 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 23:39:54,224 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 23:39:54,225 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 23:39:54,225 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 23:39:54,226 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 23:39:54,227 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 23:39:54,228 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 23:39:54,229 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 23:39:54,230 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 23:39:54,230 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 23:39:54,230 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 23:39:54,231 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 23:39:54,232 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 23:39:54,233 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 [2020-09-24 23:39:54,271 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 23:39:54,271 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 23:39:54,272 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 23:39:54,273 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 23:39:54,273 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 23:39:54,273 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 23:39:54,273 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 23:39:54,273 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 23:39:54,274 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 23:39:54,274 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 23:39:54,274 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 23:39:54,274 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 23:39:54,274 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 23:39:54,275 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 23:39:54,275 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 23:39:54,275 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 23:39:54,275 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 23:39:54,276 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 23:39:54,276 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 23:39:54,276 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 23:39:54,276 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 23:39:54,276 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 23:39:54,277 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 23:39:54,277 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 23:39:54,277 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 23:39:54,277 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 23:39:54,277 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 23:39:54,278 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 23:39:54,278 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 23:39:54,278 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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;log-additional-information=true; [2020-09-24 23:39:54,732 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 23:39:54,749 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 23:39:54,753 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 23:39:54,755 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 23:39:54,756 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 23:39:54,757 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product63.cil.c [2020-09-24 23:39:54,837 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b4ea4acc5/bef1db3c459143ca92da72734c6e7de4/FLAGde6bdc8ff [2020-09-24 23:39:55,464 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 23:39:55,465 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product63.cil.c [2020-09-24 23:39:55,479 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b4ea4acc5/bef1db3c459143ca92da72734c6e7de4/FLAGde6bdc8ff [2020-09-24 23:39:55,747 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b4ea4acc5/bef1db3c459143ca92da72734c6e7de4 [2020-09-24 23:39:55,761 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 23:39:55,767 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 23:39:55,768 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 23:39:55,769 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 23:39:55,773 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 23:39:55,775 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:39:55" (1/1) ... [2020-09-24 23:39:55,779 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c46e88b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:39:55, skipping insertion in model container [2020-09-24 23:39:55,779 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:39:55" (1/1) ... [2020-09-24 23:39:55,789 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 23:39:55,840 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 23:39:56,341 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:39:56,356 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 23:39:56,447 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:39:56,487 INFO L208 MainTranslator]: Completed translation [2020-09-24 23:39:56,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:39:56 WrapperNode [2020-09-24 23:39:56,488 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 23:39:56,489 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 23:39:56,490 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 23:39:56,490 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 23:39:56,505 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:39:56" (1/1) ... [2020-09-24 23:39:56,506 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:39:56" (1/1) ... [2020-09-24 23:39:56,527 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:39:56" (1/1) ... [2020-09-24 23:39:56,527 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:39:56" (1/1) ... [2020-09-24 23:39:56,563 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:39:56" (1/1) ... [2020-09-24 23:39:56,585 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:39:56" (1/1) ... [2020-09-24 23:39:56,591 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:39:56" (1/1) ... [2020-09-24 23:39:56,611 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 23:39:56,611 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 23:39:56,612 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 23:39:56,615 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 23:39:56,617 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:39:56" (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 [2020-09-24 23:39:56,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 23:39:56,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 23:39:56,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 23:39:56,724 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 23:39:56,724 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 23:39:56,725 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 23:39:56,725 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 23:39:56,725 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 23:39:56,725 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 23:39:56,725 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 23:39:56,726 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 23:39:56,726 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 23:39:56,726 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 23:39:56,726 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 23:39:56,726 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 23:39:56,727 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 23:39:56,727 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 23:39:56,727 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 23:39:56,727 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-24 23:39:56,728 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 23:39:56,728 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 23:39:56,728 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 23:39:56,728 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 23:39:56,728 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 23:39:56,728 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 23:39:56,729 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 23:39:56,729 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 23:39:56,729 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 23:39:56,729 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 23:39:56,729 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 23:39:56,729 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 23:39:56,730 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 23:39:56,730 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 23:39:56,730 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-24 23:39:56,730 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 23:39:56,730 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 23:39:56,730 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 23:39:56,731 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 23:39:56,731 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 23:39:56,731 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 23:39:56,731 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 23:39:56,731 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 23:39:56,731 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 23:39:56,732 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 23:39:56,732 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 23:39:56,732 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 23:39:56,732 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 23:39:56,732 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 23:39:56,732 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 23:39:56,733 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 23:39:56,733 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 23:39:56,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 23:39:56,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 23:39:56,733 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 23:39:56,733 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 23:39:56,734 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 23:39:56,734 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 23:39:56,734 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 23:39:56,734 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 23:39:56,734 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 23:39:56,734 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 23:39:56,734 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 23:39:56,735 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 23:39:56,735 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 23:39:56,735 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 23:39:56,735 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 23:39:56,735 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 23:39:56,735 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 23:39:56,736 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 23:39:56,736 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 23:39:56,736 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 23:39:56,736 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 23:39:56,736 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 23:39:56,736 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 23:39:56,737 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 23:39:56,737 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 23:39:56,737 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 23:39:56,737 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 23:39:56,737 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 23:39:56,737 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 23:39:56,738 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-24 23:39:56,738 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 23:39:56,738 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 23:39:56,738 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 23:39:56,738 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 23:39:56,738 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 23:39:56,738 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 23:39:56,739 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 23:39:56,739 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 23:39:56,739 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 23:39:56,739 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 23:39:56,739 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 23:39:56,739 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 23:39:56,740 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 23:39:56,740 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 23:39:56,740 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 23:39:56,740 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-24 23:39:56,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 23:39:56,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 23:39:56,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 23:39:58,116 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 23:39:58,117 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 23:39:58,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:39:58 BoogieIcfgContainer [2020-09-24 23:39:58,125 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 23:39:58,126 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 23:39:58,127 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 23:39:58,131 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 23:39:58,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 11:39:55" (1/3) ... [2020-09-24 23:39:58,132 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b787b5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:39:58, skipping insertion in model container [2020-09-24 23:39:58,132 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:39:56" (2/3) ... [2020-09-24 23:39:58,133 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b787b5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:39:58, skipping insertion in model container [2020-09-24 23:39:58,133 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:39:58" (3/3) ... [2020-09-24 23:39:58,136 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product63.cil.c [2020-09-24 23:39:58,148 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 23:39:58,161 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 23:39:58,185 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 23:39:58,222 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 23:39:58,222 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 23:39:58,223 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 23:39:58,223 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 23:39:58,223 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 23:39:58,223 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 23:39:58,223 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 23:39:58,223 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 23:39:58,255 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states. [2020-09-24 23:39:58,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 23:39:58,274 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:39:58,275 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] [2020-09-24 23:39:58,276 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:39:58,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:39:58,285 INFO L82 PathProgramCache]: Analyzing trace with hash 678471582, now seen corresponding path program 1 times [2020-09-24 23:39:58,296 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:39:58,297 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [220232522] [2020-09-24 23:39:58,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:39:58,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:58,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:58,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:00,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:01,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:03,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:03,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 23:40:03,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 23:40:03,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-09-24 23:40:03,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:03,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 23:40:03,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 23:40:03,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 23:40:03,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-09-24 23:40:04,269 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 23:40:04,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:40:04,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:04,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:04,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:04,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 23:40:04,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:40:04,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 323 [2020-09-24 23:40:04,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:04,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:40:04,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:40:04,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 23:40:04,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:40:04,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:40:04,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:04,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:04,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:04,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:40:04,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:40:04,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:40:04,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:04,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:40:04,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:40:04,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:40:04,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:40:04,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 23:40:04,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:04,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:04,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:04,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:40:04,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:40:04,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:40:04,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:04,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:40:04,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:40:04,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:40:04,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:40:04,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 23:40:04,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:04,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:04,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:04,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:40:04,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:40:04,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 23:40:04,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:04,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:40:04,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:40:04,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:40:04,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:40:04,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 23:40:04,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:04,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:04,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:04,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:40:04,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:40:04,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:40:04,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:04,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:40:04,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:40:04,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:40:04,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:40:04,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 23:40:04,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:04,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:04,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:04,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:40:04,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:40:04,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 23:40:04,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:04,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:40:04,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:40:04,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:40:04,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:40:04,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 23:40:04,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:04,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:04,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:04,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:40:04,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:40:04,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:40:04,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:04,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:40:04,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:40:04,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:40:04,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:40:04,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:40:04,915 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [220232522] [2020-09-24 23:40:04,917 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:40:04,917 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 23:40:04,918 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375225298] [2020-09-24 23:40:04,925 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 23:40:04,925 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:40:04,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 23:40:04,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 23:40:04,958 INFO L87 Difference]: Start difference. First operand 352 states. Second operand 8 states. [2020-09-24 23:40:05,603 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:40:06,588 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:40:06,896 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:40:07,384 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:40:07,769 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:40:08,073 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:40:08,424 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:40:08,782 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:40:11,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:40:11,611 INFO L93 Difference]: Finished difference Result 779 states and 957 transitions. [2020-09-24 23:40:11,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 23:40:11,612 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-24 23:40:11,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:40:11,636 INFO L225 Difference]: With dead ends: 779 [2020-09-24 23:40:11,637 INFO L226 Difference]: Without dead ends: 538 [2020-09-24 23:40:11,644 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-24 23:40:11,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2020-09-24 23:40:11,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 488. [2020-09-24 23:40:11,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 488 states. [2020-09-24 23:40:11,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 557 transitions. [2020-09-24 23:40:11,831 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 557 transitions. Word has length 142 [2020-09-24 23:40:11,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:40:11,832 INFO L479 AbstractCegarLoop]: Abstraction has 488 states and 557 transitions. [2020-09-24 23:40:11,832 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 23:40:11,832 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 557 transitions. [2020-09-24 23:40:11,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-24 23:40:11,839 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:40:11,840 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:40:11,840 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 23:40:11,840 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:40:11,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:40:11,841 INFO L82 PathProgramCache]: Analyzing trace with hash 188320700, now seen corresponding path program 1 times [2020-09-24 23:40:11,841 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:40:11,841 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [439770632] [2020-09-24 23:40:11,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:40:11,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:11,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:12,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:13,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:16,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:16,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-24 23:40:16,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 23:40:16,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-24 23:40:16,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:16,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 23:40:16,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-24 23:40:16,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-09-24 23:40:16,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:40:17,292 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 23:40:17,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:40:17,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:17,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:17,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:17,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 23:40:17,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:40:17,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 254 [2020-09-24 23:40:17,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:17,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:40:17,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:40:17,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 23:40:17,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:40:17,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:40:17,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:17,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:17,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:17,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:40:17,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:40:17,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:40:17,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:17,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:40:17,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:40:17,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:40:17,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:40:17,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 23:40:17,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:17,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:17,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:17,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:40:17,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:40:17,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:40:17,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:17,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:40:17,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:40:17,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:40:17,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:40:17,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 23:40:17,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:17,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:17,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:17,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:40:17,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:40:17,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 23:40:17,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:17,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:40:17,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:40:17,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:40:17,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:40:17,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 23:40:17,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:17,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:17,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:17,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:40:17,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:40:17,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:40:17,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:17,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:40:17,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:40:17,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:40:17,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:40:17,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-24 23:40:17,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:17,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:17,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:17,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 23:40:17,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:40:17,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:40:17,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:17,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:40:17,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 23:40:17,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:40:17,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:40:17,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-24 23:40:17,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:17,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:17,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:17,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:40:17,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:40:17,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:40:17,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:17,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:40:17,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:40:17,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:40:17,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:40:17,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 23:40:17,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:17,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:17,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:17,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:40:17,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:40:17,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:40:17,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:17,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:40:17,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:40:17,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:40:17,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:40:17,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:40:17,840 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [439770632] [2020-09-24 23:40:17,840 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:40:17,840 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 23:40:17,841 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490625407] [2020-09-24 23:40:17,843 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 23:40:17,844 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:40:17,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 23:40:17,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 23:40:17,845 INFO L87 Difference]: Start difference. First operand 488 states and 557 transitions. Second operand 5 states. [2020-09-24 23:40:18,354 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:40:20,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:40:20,758 INFO L93 Difference]: Finished difference Result 1068 states and 1332 transitions. [2020-09-24 23:40:20,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 23:40:20,759 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 148 [2020-09-24 23:40:20,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:40:20,767 INFO L225 Difference]: With dead ends: 1068 [2020-09-24 23:40:20,767 INFO L226 Difference]: Without dead ends: 690 [2020-09-24 23:40:20,772 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 23:40:20,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2020-09-24 23:40:20,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 633. [2020-09-24 23:40:20,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 633 states. [2020-09-24 23:40:20,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 633 states to 633 states and 739 transitions. [2020-09-24 23:40:20,871 INFO L78 Accepts]: Start accepts. Automaton has 633 states and 739 transitions. Word has length 148 [2020-09-24 23:40:20,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:40:20,872 INFO L479 AbstractCegarLoop]: Abstraction has 633 states and 739 transitions. [2020-09-24 23:40:20,872 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 23:40:20,872 INFO L276 IsEmpty]: Start isEmpty. Operand 633 states and 739 transitions. [2020-09-24 23:40:20,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-09-24 23:40:20,875 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:40:20,875 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] [2020-09-24 23:40:20,875 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 23:40:20,876 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:40:20,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:40:20,876 INFO L82 PathProgramCache]: Analyzing trace with hash -1091239638, now seen corresponding path program 1 times [2020-09-24 23:40:20,876 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:40:20,877 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1538136840] [2020-09-24 23:40:20,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:40:20,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:20,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:21,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:22,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:25,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:25,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 188 [2020-09-24 23:40:25,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 23:40:25,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-09-24 23:40:25,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:25,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 23:40:25,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 23:40:25,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-09-24 23:40:25,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:40:26,266 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 23:40:26,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:40:26,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:26,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:26,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:26,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 23:40:26,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:40:26,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 220 [2020-09-24 23:40:26,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:26,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:40:26,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:40:26,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 23:40:26,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:40:26,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:40:26,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:26,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:26,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:26,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:40:26,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:40:26,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:40:26,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:26,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:40:26,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:40:26,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:40:26,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:40:26,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 23:40:26,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:26,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:26,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:26,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:40:26,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:40:26,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:40:26,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:26,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:40:26,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:40:26,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:40:26,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:40:26,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 23:40:26,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:26,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:26,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:26,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:40:26,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:40:26,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:40:26,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:26,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:40:26,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:40:26,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:40:26,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:40:26,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 23:40:26,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:26,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:26,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:26,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:40:26,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:40:26,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:40:26,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:26,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:40:26,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:40:26,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:40:26,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:40:26,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-24 23:40:26,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:26,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:26,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:26,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 23:40:26,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:40:26,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 23:40:26,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:26,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:40:26,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 23:40:26,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 23:40:26,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:40:26,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 23:40:26,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:26,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:26,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:26,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:40:26,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:40:26,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 23:40:26,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:26,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:40:26,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:40:26,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:40:26,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:40:26,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-24 23:40:26,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:26,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:26,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:26,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:40:26,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:40:26,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:40:26,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:26,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:40:26,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:40:26,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:40:26,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:40:26,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:40:26,765 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1538136840] [2020-09-24 23:40:26,765 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:40:26,765 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-24 23:40:26,766 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902259914] [2020-09-24 23:40:26,767 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-24 23:40:26,767 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:40:26,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-24 23:40:26,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2020-09-24 23:40:26,768 INFO L87 Difference]: Start difference. First operand 633 states and 739 transitions. Second operand 12 states. [2020-09-24 23:40:27,296 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:40:28,245 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:40:28,583 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:40:28,884 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:40:29,248 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:40:29,649 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:40:29,946 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:40:30,528 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 23:40:30,887 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:40:31,238 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:40:31,566 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:40:31,885 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:40:33,242 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:40:33,580 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:40:34,018 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:40:37,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:40:37,741 INFO L93 Difference]: Finished difference Result 1421 states and 1926 transitions. [2020-09-24 23:40:37,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-09-24 23:40:37,743 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 157 [2020-09-24 23:40:37,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:40:37,760 INFO L225 Difference]: With dead ends: 1421 [2020-09-24 23:40:37,761 INFO L226 Difference]: Without dead ends: 1099 [2020-09-24 23:40:37,764 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=213, Invalid=657, Unknown=0, NotChecked=0, Total=870 [2020-09-24 23:40:37,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1099 states. [2020-09-24 23:40:37,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1099 to 917. [2020-09-24 23:40:37,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 917 states. [2020-09-24 23:40:37,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 917 states and 1126 transitions. [2020-09-24 23:40:37,927 INFO L78 Accepts]: Start accepts. Automaton has 917 states and 1126 transitions. Word has length 157 [2020-09-24 23:40:37,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:40:37,929 INFO L479 AbstractCegarLoop]: Abstraction has 917 states and 1126 transitions. [2020-09-24 23:40:37,929 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-24 23:40:37,929 INFO L276 IsEmpty]: Start isEmpty. Operand 917 states and 1126 transitions. [2020-09-24 23:40:37,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2020-09-24 23:40:37,939 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:40:37,940 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:40:37,940 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 23:40:37,941 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:40:37,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:40:37,941 INFO L82 PathProgramCache]: Analyzing trace with hash 1440721002, now seen corresponding path program 1 times [2020-09-24 23:40:37,941 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:40:37,942 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [646596312] [2020-09-24 23:40:37,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:40:38,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:38,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:38,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:38,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:41,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:42,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:43,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:43,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-09-24 23:40:43,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 23:40:43,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-09-24 23:40:43,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:43,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 23:40:43,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 23:40:43,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-09-24 23:40:43,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:40:43,369 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 23:40:43,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:40:43,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:43,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:43,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:43,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 23:40:43,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:40:43,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 247 [2020-09-24 23:40:43,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:43,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:40:43,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:40:43,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 23:40:43,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:40:43,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:40:43,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:43,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:43,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:43,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:40:43,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:40:43,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:40:43,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:43,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:40:43,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:40:43,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:40:43,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:40:43,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 23:40:43,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:43,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:43,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:43,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:40:43,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:40:43,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:40:43,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:43,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:40:43,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:40:43,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:40:43,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:40:43,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 23:40:43,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:43,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:43,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:43,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:40:43,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:40:43,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 23:40:43,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:43,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:40:43,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:40:43,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:40:43,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:40:43,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 23:40:43,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:43,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:43,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:43,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:40:43,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:40:43,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:40:43,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:43,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:40:43,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:40:43,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:40:43,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 23:40:43,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-24 23:40:43,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:43,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:43,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:43,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 23:40:43,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:40:43,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 23:40:43,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:43,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:40:43,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 23:40:43,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 23:40:43,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:40:43,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 23:40:43,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:43,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:43,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:43,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 23:40:43,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:40:43,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-24 23:40:43,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:43,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:40:43,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 23:40:43,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 23:40:43,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:40:43,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:40:43,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:43,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:43,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:43,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 23:40:43,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:40:43,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 23:40:43,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:43,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:40:43,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:40:43,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 23:40:43,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:40:43,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:40:43,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:43,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:43,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:43,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:40:43,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:40:43,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:40:43,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:43,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:40:43,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:40:43,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:40:43,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:40:43,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-24 23:40:43,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:43,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:43,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:43,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 23:40:43,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:40:43,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 23:40:43,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:43,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:40:43,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 23:40:43,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 23:40:43,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:40:44,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-09-24 23:40:44,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:44,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:44,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:44,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:40:44,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:40:44,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:40:44,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:44,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:40:44,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:40:44,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:40:44,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:40:44,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2020-09-24 23:40:44,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:44,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:44,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:44,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:40:44,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:40:44,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:40:44,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:44,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:40:44,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:40:44,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:40:44,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:40:44,095 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 19 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-24 23:40:44,096 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [646596312] [2020-09-24 23:40:44,096 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:40:44,097 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-24 23:40:44,097 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335599541] [2020-09-24 23:40:44,098 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 23:40:44,098 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:40:44,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 23:40:44,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-09-24 23:40:44,099 INFO L87 Difference]: Start difference. First operand 917 states and 1126 transitions. Second operand 10 states.