/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_spec2_product29.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 23:32:50,215 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 23:32:50,220 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 23:32:50,268 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 23:32:50,269 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 23:32:50,279 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 23:32:50,283 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 23:32:50,286 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 23:32:50,289 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 23:32:50,293 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 23:32:50,294 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 23:32:50,296 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 23:32:50,296 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 23:32:50,299 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 23:32:50,302 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 23:32:50,304 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 23:32:50,306 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 23:32:50,307 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 23:32:50,309 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 23:32:50,315 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 23:32:50,317 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 23:32:50,322 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 23:32:50,323 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 23:32:50,324 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 23:32:50,326 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 23:32:50,326 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 23:32:50,327 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 23:32:50,328 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 23:32:50,328 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 23:32:50,329 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 23:32:50,329 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 23:32:50,330 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 23:32:50,331 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 23:32:50,332 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 23:32:50,333 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 23:32:50,333 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 23:32:50,334 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 23:32:50,334 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 23:32:50,335 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 23:32:50,336 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 23:32:50,336 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 23:32:50,337 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 23:32:50,363 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 23:32:50,363 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 23:32:50,364 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 23:32:50,364 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 23:32:50,365 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 23:32:50,365 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 23:32:50,365 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 23:32:50,365 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 23:32:50,365 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 23:32:50,366 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 23:32:50,366 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 23:32:50,366 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 23:32:50,366 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 23:32:50,367 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 23:32:50,367 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 23:32:50,367 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 23:32:50,367 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 23:32:50,367 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 23:32:50,368 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 23:32:50,368 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 23:32:50,368 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 23:32:50,368 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 23:32:50,368 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 23:32:50,369 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 23:32:50,369 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 23:32:50,369 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 23:32:50,369 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 23:32:50,369 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 23:32:50,370 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 23:32:50,370 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 23:32:50,820 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 23:32:50,839 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 23:32:50,843 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 23:32:50,845 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 23:32:50,846 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 23:32:50,847 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product29.cil.c [2020-09-24 23:32:50,922 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/58a936573/4a632b52ec6f48e5bfd2ed57f018ac97/FLAG743c0b080 [2020-09-24 23:32:51,557 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 23:32:51,558 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product29.cil.c [2020-09-24 23:32:51,575 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/58a936573/4a632b52ec6f48e5bfd2ed57f018ac97/FLAG743c0b080 [2020-09-24 23:32:51,800 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/58a936573/4a632b52ec6f48e5bfd2ed57f018ac97 [2020-09-24 23:32:51,813 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 23:32:51,818 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 23:32:51,820 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 23:32:51,820 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 23:32:51,824 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 23:32:51,825 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:32:51" (1/1) ... [2020-09-24 23:32:51,829 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b0ba802 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:32:51, skipping insertion in model container [2020-09-24 23:32:51,830 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:32:51" (1/1) ... [2020-09-24 23:32:51,839 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 23:32:51,897 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 23:32:52,380 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:32:52,405 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 23:32:52,514 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:32:52,552 INFO L208 MainTranslator]: Completed translation [2020-09-24 23:32:52,552 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:32:52 WrapperNode [2020-09-24 23:32:52,552 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 23:32:52,553 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 23:32:52,554 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 23:32:52,554 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 23:32:52,569 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:32:52" (1/1) ... [2020-09-24 23:32:52,570 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:32:52" (1/1) ... [2020-09-24 23:32:52,594 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:32:52" (1/1) ... [2020-09-24 23:32:52,595 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:32:52" (1/1) ... [2020-09-24 23:32:52,629 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:32:52" (1/1) ... [2020-09-24 23:32:52,642 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:32:52" (1/1) ... [2020-09-24 23:32:52,647 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:32:52" (1/1) ... [2020-09-24 23:32:52,655 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 23:32:52,655 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 23:32:52,656 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 23:32:52,656 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 23:32:52,657 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:32:52" (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 23:32:52,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 23:32:52,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 23:32:52,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 23:32:52,736 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 23:32:52,736 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 23:32:52,737 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 23:32:52,737 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 23:32:52,737 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-24 23:32:52,737 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 23:32:52,737 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 23:32:52,738 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 23:32:52,738 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 23:32:52,738 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 23:32:52,738 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 23:32:52,738 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 23:32:52,739 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 23:32:52,739 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 23:32:52,739 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 23:32:52,739 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 23:32:52,740 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 23:32:52,740 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 23:32:52,740 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-24 23:32:52,740 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-24 23:32:52,740 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 23:32:52,740 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 23:32:52,741 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 23:32:52,741 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 23:32:52,741 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 23:32:52,741 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 23:32:52,741 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 23:32:52,742 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 23:32:52,742 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 23:32:52,742 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 23:32:52,742 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 23:32:52,742 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 23:32:52,742 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 23:32:52,742 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 23:32:52,743 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 23:32:52,743 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 23:32:52,743 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 23:32:52,743 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 23:32:52,743 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 23:32:52,743 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 23:32:52,744 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 23:32:52,744 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 23:32:52,744 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 23:32:52,744 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 23:32:52,744 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 23:32:52,744 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 23:32:52,745 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 23:32:52,745 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 23:32:52,745 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 23:32:52,745 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-24 23:32:52,745 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 23:32:52,745 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 23:32:52,746 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 23:32:52,746 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 23:32:52,746 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 23:32:52,746 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-24 23:32:52,746 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 23:32:52,746 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 23:32:52,747 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 23:32:52,747 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 23:32:52,747 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 23:32:52,747 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 23:32:52,747 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 23:32:52,747 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 23:32:52,748 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-24 23:32:52,748 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 23:32:52,748 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 23:32:52,748 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 23:32:52,748 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 23:32:52,748 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 23:32:52,748 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 23:32:52,749 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 23:32:52,749 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 23:32:52,749 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 23:32:52,749 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 23:32:52,749 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 23:32:52,749 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 23:32:52,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 23:32:52,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 23:32:52,750 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 23:32:52,750 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 23:32:52,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 23:32:52,750 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 23:32:52,751 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 23:32:52,751 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 23:32:52,751 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 23:32:52,751 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 23:32:52,751 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 23:32:52,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 23:32:52,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 23:32:52,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 23:32:53,913 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 23:32:53,913 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 23:32:53,925 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:32:53 BoogieIcfgContainer [2020-09-24 23:32:53,925 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 23:32:53,930 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 23:32:53,930 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 23:32:53,935 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 23:32:53,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 11:32:51" (1/3) ... [2020-09-24 23:32:53,936 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@200c2d2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:32:53, skipping insertion in model container [2020-09-24 23:32:53,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:32:52" (2/3) ... [2020-09-24 23:32:53,937 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@200c2d2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:32:53, skipping insertion in model container [2020-09-24 23:32:53,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:32:53" (3/3) ... [2020-09-24 23:32:53,940 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product29.cil.c [2020-09-24 23:32:53,954 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 23:32:53,969 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 23:32:53,995 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 23:32:54,047 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 23:32:54,048 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 23:32:54,048 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 23:32:54,048 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 23:32:54,048 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 23:32:54,048 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 23:32:54,049 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 23:32:54,049 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 23:32:54,092 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states. [2020-09-24 23:32:54,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-24 23:32:54,133 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:32:54,136 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 23:32:54,136 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:32:54,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:32:54,149 INFO L82 PathProgramCache]: Analyzing trace with hash 328016978, now seen corresponding path program 1 times [2020-09-24 23:32:54,161 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:32:54,162 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1440421194] [2020-09-24 23:32:54,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:32:54,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:32:54,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:32:55,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:32:55,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:32:56,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:32:57,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:32:59,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:32:59,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-24 23:32:59,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 23:32:59,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-24 23:32:59,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:32:59,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:32:59,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 23:32:59,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-24 23:32:59,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 23:33:00,013 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:33:00,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:33:00,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:00,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:00,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:00,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 23:33:00,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:00,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 294 [2020-09-24 23:33:00,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:00,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:33:00,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:00,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 23:33:00,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:33:00,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 23:33:00,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:00,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:00,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:00,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:33:00,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:00,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:33:00,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:00,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:33:00,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:00,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:33:00,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:33:00,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 23:33:00,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:00,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:00,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:00,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:33:00,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:00,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:33:00,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:00,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:33:00,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:00,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:33:00,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:33:00,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 23:33:00,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:00,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:00,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:00,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:33:00,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:00,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 23:33:00,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:00,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:33:00,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:00,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:33:00,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:33:00,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 23:33:00,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:00,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:00,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:00,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:33:00,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:00,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:33:00,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:00,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:33:00,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:00,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:33:00,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:33:00,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 23:33:00,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:00,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:00,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:00,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:33:00,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:00,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:33:00,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:00,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:33:00,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:00,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 23:33:00,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:33:00,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 23:33:00,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:00,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:00,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:00,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:33:00,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:00,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:33:00,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:00,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:33:00,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:33:00,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:33:00,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:33:00,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 23:33:00,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:00,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:00,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:00,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:33:00,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:00,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:33:00,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:00,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:33:00,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:33:00,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:33:00,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:33:00,603 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 23:33:00,604 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1440421194] [2020-09-24 23:33:00,606 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:33:00,606 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 23:33:00,607 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963345213] [2020-09-24 23:33:00,614 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 23:33:00,615 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:33:00,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 23:33:00,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 23:33:00,636 INFO L87 Difference]: Start difference. First operand 314 states. Second operand 5 states. [2020-09-24 23:33:01,309 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 23:33:02,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:33:02,405 INFO L93 Difference]: Finished difference Result 468 states and 557 transitions. [2020-09-24 23:33:02,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 23:33:02,408 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 148 [2020-09-24 23:33:02,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:33:02,428 INFO L225 Difference]: With dead ends: 468 [2020-09-24 23:33:02,428 INFO L226 Difference]: Without dead ends: 300 [2020-09-24 23:33:02,434 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 23:33:02,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2020-09-24 23:33:02,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 253. [2020-09-24 23:33:02,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 253 states. [2020-09-24 23:33:02,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 275 transitions. [2020-09-24 23:33:02,545 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 275 transitions. Word has length 148 [2020-09-24 23:33:02,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:33:02,547 INFO L479 AbstractCegarLoop]: Abstraction has 253 states and 275 transitions. [2020-09-24 23:33:02,547 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 23:33:02,548 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 275 transitions. [2020-09-24 23:33:02,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-09-24 23:33:02,555 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:33:02,555 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:33:02,555 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 23:33:02,556 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:33:02,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:33:02,558 INFO L82 PathProgramCache]: Analyzing trace with hash -1158136976, now seen corresponding path program 1 times [2020-09-24 23:33:02,558 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:33:02,558 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [447947792] [2020-09-24 23:33:02,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:33:02,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:02,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:03,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:03,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:03,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:06,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:07,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:07,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 208 [2020-09-24 23:33:07,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 23:33:07,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-09-24 23:33:07,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:07,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 23:33:07,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-24 23:33:07,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-09-24 23:33:07,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:33:08,042 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:33:08,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:33:08,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:08,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:08,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:08,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 23:33:08,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:08,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 234 [2020-09-24 23:33:08,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:08,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:33:08,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:08,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 23:33:08,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:33:08,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 23:33:08,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:08,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:08,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:08,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:33:08,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:08,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:33:08,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:08,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:33:08,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:08,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:33:08,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:33:08,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 23:33:08,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:08,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:08,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:08,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:33:08,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:08,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:33:08,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:08,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:33:08,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:08,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:33:08,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:33:08,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 23:33:08,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:08,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:08,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:08,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:33:08,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:08,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 23:33:08,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:08,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:33:08,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:08,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:33:08,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:33:08,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 23:33:08,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:08,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:08,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:08,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:33:08,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:08,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:33:08,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:08,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:33:08,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:08,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:33:08,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:33:08,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 23:33:08,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:08,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:08,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:08,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:33:08,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:08,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:33:08,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:08,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:33:08,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:08,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 23:33:08,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:33:08,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 23:33:08,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:08,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:08,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:08,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 23:33:08,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:08,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:33:08,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:08,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:33:08,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:08,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 23:33:08,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:33:08,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:33:08,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:08,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:08,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:08,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 23:33:08,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:08,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-24 23:33:08,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:08,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:33:08,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:08,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:33:08,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:33:08,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:33:08,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:08,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:08,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:08,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:33:08,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:08,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:33:08,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:08,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:33:08,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:08,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:33:08,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:33:08,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 23:33:08,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:08,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:08,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:08,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:33:08,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:08,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 23:33:08,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:08,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:33:08,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:08,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:33:08,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:33:08,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-09-24 23:33:08,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:08,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:08,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:08,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:33:08,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:08,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:33:08,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:08,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:33:08,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:33:08,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:33:08,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:33:08,615 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 23:33:08,616 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [447947792] [2020-09-24 23:33:08,617 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:33:08,617 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 23:33:08,617 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046981190] [2020-09-24 23:33:08,620 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 23:33:08,620 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:33:08,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 23:33:08,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 23:33:08,621 INFO L87 Difference]: Start difference. First operand 253 states and 275 transitions. Second operand 10 states. [2020-09-24 23:33:09,146 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:33:10,177 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:33:10,493 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 23:33:11,275 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 23:33:11,626 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:33:12,616 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:33:12,948 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 23:33:13,259 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:33:13,862 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:33:14,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:33:14,459 INFO L93 Difference]: Finished difference Result 642 states and 783 transitions. [2020-09-24 23:33:14,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-24 23:33:14,461 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 171 [2020-09-24 23:33:14,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:33:14,471 INFO L225 Difference]: With dead ends: 642 [2020-09-24 23:33:14,471 INFO L226 Difference]: Without dead ends: 486 [2020-09-24 23:33:14,474 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=159, Invalid=441, Unknown=0, NotChecked=0, Total=600 [2020-09-24 23:33:14,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2020-09-24 23:33:14,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 363. [2020-09-24 23:33:14,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 363 states. [2020-09-24 23:33:14,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 402 transitions. [2020-09-24 23:33:14,561 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 402 transitions. Word has length 171 [2020-09-24 23:33:14,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:33:14,562 INFO L479 AbstractCegarLoop]: Abstraction has 363 states and 402 transitions. [2020-09-24 23:33:14,562 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 23:33:14,562 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 402 transitions. [2020-09-24 23:33:14,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-09-24 23:33:14,566 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:33:14,566 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:33:14,566 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 23:33:14,566 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:33:14,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:33:14,567 INFO L82 PathProgramCache]: Analyzing trace with hash -1643962645, now seen corresponding path program 1 times [2020-09-24 23:33:14,567 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:33:14,567 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1359785603] [2020-09-24 23:33:14,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:33:14,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:14,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:14,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:15,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:15,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:19,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:19,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 215 [2020-09-24 23:33:19,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 23:33:19,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-24 23:33:19,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:19,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-24 23:33:19,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-24 23:33:19,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-09-24 23:33:19,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:33:19,986 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:33:19,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:33:20,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:20,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:20,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:20,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 23:33:20,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:20,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 205 [2020-09-24 23:33:20,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:20,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:33:20,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:20,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-24 23:33:20,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:33:20,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 23:33:20,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:20,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:20,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:20,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:33:20,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:20,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:33:20,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:20,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:33:20,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:20,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:33:20,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:33:20,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 23:33:20,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:20,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:20,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:20,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:33:20,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:20,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:33:20,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:20,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:33:20,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:20,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:33:20,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:33:20,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 23:33:20,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:20,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:20,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:20,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:33:20,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:20,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 23:33:20,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:20,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:33:20,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:20,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:33:20,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:33:20,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 23:33:20,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:20,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:20,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:20,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:33:20,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:20,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:33:20,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:20,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:33:20,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:20,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:33:20,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:33:20,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 23:33:20,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:20,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:20,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:20,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:33:20,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:20,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:33:20,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:20,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:33:20,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:20,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 23:33:20,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:33:20,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 23:33:20,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:20,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:20,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:20,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 23:33:20,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:20,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:33:20,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:20,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:33:20,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:20,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 23:33:20,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:33:20,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-24 23:33:20,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:20,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:20,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:20,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:20,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:20,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 23:33:20,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 23:33:20,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 23:33:20,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:20,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:33:20,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 23:33:20,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-24 23:33:20,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:33:20,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:33:20,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:20,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:20,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:20,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 23:33:20,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:20,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 23:33:20,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:20,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:33:20,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 23:33:20,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 23:33:20,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:33:20,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:33:20,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:20,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:20,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:20,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:33:20,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:20,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:33:20,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:20,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:33:20,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:20,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:33:20,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:33:20,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-24 23:33:20,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:20,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:20,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:20,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:33:20,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:20,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:33:20,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:20,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:33:20,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:20,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:33:20,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:33:20,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-09-24 23:33:20,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:20,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:20,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:20,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:33:20,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:20,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 23:33:20,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:20,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:33:20,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:20,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:33:20,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:33:20,654 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 23:33:20,654 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1359785603] [2020-09-24 23:33:20,655 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:33:20,655 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 23:33:20,655 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67781633] [2020-09-24 23:33:20,658 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 23:33:20,658 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:33:20,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 23:33:20,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-24 23:33:20,663 INFO L87 Difference]: Start difference. First operand 363 states and 402 transitions. Second operand 11 states. [2020-09-24 23:33:21,279 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:33:22,504 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:33:22,817 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 23:33:23,188 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:33:23,523 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-09-24 23:33:23,841 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-24 23:33:24,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:33:24,206 INFO L93 Difference]: Finished difference Result 579 states and 678 transitions. [2020-09-24 23:33:24,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-24 23:33:24,207 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 176 [2020-09-24 23:33:24,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:33:24,209 INFO L225 Difference]: With dead ends: 579 [2020-09-24 23:33:24,209 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 23:33:24,213 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=177, Invalid=423, Unknown=0, NotChecked=0, Total=600 [2020-09-24 23:33:24,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 23:33:24,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 23:33:24,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 23:33:24,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 23:33:24,214 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 176 [2020-09-24 23:33:24,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:33:24,215 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 23:33:24,215 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 23:33:24,215 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 23:33:24,215 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 23:33:24,215 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 23:33:24,218 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 23:33:24,409 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:33:24,620 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 23:33:24,902 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 15 [2020-09-24 23:33:25,076 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 23:33:25,362 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 196 [2020-09-24 23:33:25,726 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 192 [2020-09-24 23:33:26,292 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 196 [2020-09-24 23:33:26,565 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 196 [2020-09-24 23:33:26,845 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 196 [2020-09-24 23:33:27,195 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 192 [2020-09-24 23:33:27,541 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 192 [2020-09-24 23:33:27,900 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 192 [2020-09-24 23:33:28,068 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:33:28,236 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 23:33:28,397 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:33:28,565 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 23:33:28,737 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 23:33:28,919 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 23:33:29,062 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:33:29,230 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 23:33:29,387 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:33:29,545 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:33:29,706 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:33:29,864 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:33:30,032 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 23:33:30,199 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 23:33:30,368 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 23:33:30,526 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:33:30,684 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:33:30,841 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:33:31,000 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:33:31,158 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:33:31,317 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:33:31,474 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:33:31,641 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 23:33:31,799 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:33:31,958 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:33:32,128 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 23:33:32,294 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 23:33:32,452 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:33:32,620 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 23:33:32,787 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 23:33:32,956 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 23:33:33,120 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:33:33,288 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 23:33:33,465 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:33:33,632 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 23:33:33,799 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 23:33:33,966 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 23:33:34,133 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:33:34,301 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 23:33:34,557 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 10 [2020-09-24 23:33:34,718 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:33:34,877 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:33:35,034 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:33:35,201 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:33:35,368 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 23:33:35,659 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 195 [2020-09-24 23:33:35,999 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 193 [2020-09-24 23:33:36,576 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 195 [2020-09-24 23:33:36,874 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 195 [2020-09-24 23:33:37,163 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 195 [2020-09-24 23:33:37,503 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 193 [2020-09-24 23:33:37,843 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 193 [2020-09-24 23:33:38,189 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 193 [2020-09-24 23:33:38,360 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 23:33:38,528 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 23:33:38,696 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 23:33:38,971 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 10 [2020-09-24 23:33:39,138 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 23:33:39,305 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 23:33:39,468 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:33:39,636 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 23:33:39,810 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 23:33:39,972 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:33:40,130 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:33:40,288 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:33:40,444 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:33:40,698 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 10 [2020-09-24 23:33:40,864 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 23:33:41,032 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:33:41,201 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 23:33:41,368 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 23:33:41,634 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 10 [2020-09-24 23:33:42,091 WARN L193 SmtUtils]: Spent 453.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 13 [2020-09-24 23:33:42,384 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 28 [2020-09-24 23:33:42,861 WARN L193 SmtUtils]: Spent 472.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 27 [2020-09-24 23:33:43,324 WARN L193 SmtUtils]: Spent 459.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 13 [2020-09-24 23:33:43,537 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 1 [2020-09-24 23:33:43,781 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 28 [2020-09-24 23:33:44,038 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:33:44,696 WARN L193 SmtUtils]: Spent 652.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 27 [2020-09-24 23:33:45,354 WARN L193 SmtUtils]: Spent 655.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 27 [2020-09-24 23:33:45,800 WARN L193 SmtUtils]: Spent 417.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 13