/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product21.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 13:13:34,567 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 13:13:34,572 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 13:13:34,599 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 13:13:34,599 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 13:13:34,601 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 13:13:34,602 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 13:13:34,604 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 13:13:34,606 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 13:13:34,607 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 13:13:34,608 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 13:13:34,609 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 13:13:34,609 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 13:13:34,610 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 13:13:34,613 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 13:13:34,614 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 13:13:34,615 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 13:13:34,616 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 13:13:34,618 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 13:13:34,620 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 13:13:34,621 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 13:13:34,623 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 13:13:34,624 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 13:13:34,625 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 13:13:34,627 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 13:13:34,628 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 13:13:34,628 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 13:13:34,629 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 13:13:34,629 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 13:13:34,630 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 13:13:34,631 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 13:13:34,632 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 13:13:34,633 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 13:13:34,634 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 13:13:34,635 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 13:13:34,635 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 13:13:34,636 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 13:13:34,636 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 13:13:34,636 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 13:13:34,637 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 13:13:34,638 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 13:13:34,639 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 13:13:34,667 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 13:13:34,667 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 13:13:34,674 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 13:13:34,675 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 13:13:34,675 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 13:13:34,678 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 13:13:34,678 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 13:13:34,680 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 13:13:34,680 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 13:13:34,681 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 13:13:34,682 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 13:13:34,682 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 13:13:34,682 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 13:13:34,682 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 13:13:34,685 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 13:13:34,685 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 13:13:34,686 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 13:13:34,686 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 13:13:34,687 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 13:13:34,687 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 13:13:34,687 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 13:13:34,688 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 13:13:34,690 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 13:13:34,692 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 13:13:34,694 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 13:13:34,694 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 13:13:34,694 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 13:13:34,694 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 13:13:34,695 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 13:13:34,695 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=SMALLESTAMONGWIDE;tolerance=0.4;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=SMALLESTAMONGWIDE;tolerance=0.4;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=SMALLESTAMONGWIDE;tolerance=0.4;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=SMALLESTAMONGWIDE;tolerance=0.4;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=SMALLESTAMONGWIDE;tolerance=0.4;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=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; [2020-09-25 13:13:35,172 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 13:13:35,192 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 13:13:35,197 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 13:13:35,198 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 13:13:35,199 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 13:13:35,200 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product21.cil.c [2020-09-25 13:13:35,283 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2173fc3f2/6b24319b00f3435890e331de75382fe0/FLAGd9bb7537c [2020-09-25 13:13:35,903 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 13:13:35,904 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product21.cil.c [2020-09-25 13:13:35,929 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2173fc3f2/6b24319b00f3435890e331de75382fe0/FLAGd9bb7537c [2020-09-25 13:13:36,176 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2173fc3f2/6b24319b00f3435890e331de75382fe0 [2020-09-25 13:13:36,190 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 13:13:36,196 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 13:13:36,198 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 13:13:36,198 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 13:13:36,202 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 13:13:36,203 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:13:36" (1/1) ... [2020-09-25 13:13:36,207 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@638c4c55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:13:36, skipping insertion in model container [2020-09-25 13:13:36,207 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:13:36" (1/1) ... [2020-09-25 13:13:36,216 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 13:13:36,279 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 13:13:36,762 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:13:36,778 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 13:13:36,860 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:13:36,902 INFO L208 MainTranslator]: Completed translation [2020-09-25 13:13:36,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:13:36 WrapperNode [2020-09-25 13:13:36,903 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 13:13:36,904 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 13:13:36,904 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 13:13:36,904 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 13:13:36,923 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:13:36" (1/1) ... [2020-09-25 13:13:36,924 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:13:36" (1/1) ... [2020-09-25 13:13:36,945 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:13:36" (1/1) ... [2020-09-25 13:13:36,946 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:13:36" (1/1) ... [2020-09-25 13:13:36,991 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:13:36" (1/1) ... [2020-09-25 13:13:37,014 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:13:36" (1/1) ... [2020-09-25 13:13:37,019 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:13:36" (1/1) ... [2020-09-25 13:13:37,027 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 13:13:37,028 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 13:13:37,028 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 13:13:37,028 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 13:13:37,030 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:13:36" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 13:13:37,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 13:13:37,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 13:13:37,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 13:13:37,107 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 13:13:37,108 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 13:13:37,108 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-25 13:13:37,108 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 13:13:37,108 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 13:13:37,108 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 13:13:37,109 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 13:13:37,109 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 13:13:37,109 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 13:13:37,109 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 13:13:37,109 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 13:13:37,109 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 13:13:37,110 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 13:13:37,110 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 13:13:37,110 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 13:13:37,111 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 13:13:37,111 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 13:13:37,111 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 13:13:37,111 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 13:13:37,111 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 13:13:37,111 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 13:13:37,112 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 13:13:37,112 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 13:13:37,112 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 13:13:37,112 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 13:13:37,112 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 13:13:37,113 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 13:13:37,113 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-25 13:13:37,113 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 13:13:37,113 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 13:13:37,113 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 13:13:37,113 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 13:13:37,113 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 13:13:37,114 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 13:13:37,114 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 13:13:37,114 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 13:13:37,114 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 13:13:37,114 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 13:13:37,115 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 13:13:37,115 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 13:13:37,115 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 13:13:37,115 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 13:13:37,115 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 13:13:37,115 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 13:13:37,116 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 13:13:37,116 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 13:13:37,117 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 13:13:37,117 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-25 13:13:37,117 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 13:13:37,117 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 13:13:37,117 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 13:13:37,118 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-25 13:13:37,118 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 13:13:37,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 13:13:37,118 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 13:13:37,118 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 13:13:37,118 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 13:13:37,119 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 13:13:37,119 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 13:13:37,119 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 13:13:37,119 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 13:13:37,119 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 13:13:37,119 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 13:13:37,119 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 13:13:37,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 13:13:37,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 13:13:37,120 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 13:13:37,120 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 13:13:37,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 13:13:37,120 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 13:13:37,120 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 13:13:37,120 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 13:13:37,121 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 13:13:37,121 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 13:13:37,121 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 13:13:37,121 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 13:13:37,121 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 13:13:37,121 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 13:13:37,122 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 13:13:37,122 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 13:13:37,122 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 13:13:37,122 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 13:13:37,122 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 13:13:37,122 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 13:13:37,122 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 13:13:37,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 13:13:37,123 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 13:13:38,349 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 13:13:38,349 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 13:13:38,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:13:38 BoogieIcfgContainer [2020-09-25 13:13:38,359 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 13:13:38,361 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 13:13:38,361 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 13:13:38,366 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 13:13:38,367 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:13:36" (1/3) ... [2020-09-25 13:13:38,368 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@652216a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:13:38, skipping insertion in model container [2020-09-25 13:13:38,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:13:36" (2/3) ... [2020-09-25 13:13:38,369 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@652216a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:13:38, skipping insertion in model container [2020-09-25 13:13:38,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:13:38" (3/3) ... [2020-09-25 13:13:38,371 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product21.cil.c [2020-09-25 13:13:38,385 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 13:13:38,399 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 13:13:38,422 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 13:13:38,464 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 13:13:38,464 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 13:13:38,465 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 13:13:38,465 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 13:13:38,465 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 13:13:38,465 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 13:13:38,465 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 13:13:38,465 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 13:13:38,495 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states. [2020-09-25 13:13:38,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 13:13:38,513 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:13:38,515 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:13:38,515 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:13:38,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:13:38,524 INFO L82 PathProgramCache]: Analyzing trace with hash 1301748271, now seen corresponding path program 1 times [2020-09-25 13:13:38,534 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:13:38,535 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1199294536] [2020-09-25 13:13:38,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:13:38,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:13:39,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:13:39,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:13:39,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:13:41,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:13:41,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:13:43,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:13:43,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 13:13:43,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 13:13:43,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-09-25 13:13:43,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:13:43,894 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:13:43,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:13:43,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 13:13:43,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-09-25 13:13:43,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 13:13:44,362 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:13:44,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:13:44,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:13:44,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:13:44,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:13:44,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:13:44,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:13:44,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 303 [2020-09-25 13:13:44,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:13:44,713 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:13:44,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:13:44,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:13:44,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 13:13:44,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:13:44,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:13:44,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:13:44,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:13:44,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:13:44,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:13:44,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:13:44,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:13:44,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:13:44,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:13:44,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:13:44,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:13:44,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:13:44,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:13:44,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:13:44,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:13:44,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:13:44,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:13:44,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:13:44,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:13:44,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:13:44,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:13:44,802 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:13:44,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:13:44,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:13:44,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:13:44,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:13:44,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:13:44,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:13:44,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:13:44,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:13:44,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:13:44,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:13:44,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 13:13:44,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:13:44,817 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:13:44,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:13:44,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:13:44,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:13:44,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:13:44,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:13:44,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:13:44,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:13:44,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:13:44,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:13:44,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:13:44,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:13:44,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:13:44,827 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:13:44,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:13:44,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:13:44,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:13:44,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:13:44,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 13:13:44,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:13:44,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:13:44,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:13:44,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:13:44,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:13:44,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:13:44,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:13:44,835 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:13:44,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:13:44,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:13:44,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:13:44,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:13:44,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 13:13:44,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:13:44,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:13:44,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:13:44,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:13:44,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:13:44,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:13:44,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:13:44,843 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:13:44,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:13:44,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:13:44,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:13:44,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:13:44,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:13:44,875 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1199294536] [2020-09-25 13:13:44,877 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:13:44,878 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 13:13:44,879 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252062510] [2020-09-25 13:13:44,885 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 13:13:44,886 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:13:44,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 13:13:44,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 13:13:44,908 INFO L87 Difference]: Start difference. First operand 300 states. Second operand 4 states. [2020-09-25 13:13:45,557 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:13:46,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:13:46,787 INFO L93 Difference]: Finished difference Result 465 states and 554 transitions. [2020-09-25 13:13:46,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 13:13:46,789 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 142 [2020-09-25 13:13:46,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:13:46,810 INFO L225 Difference]: With dead ends: 465 [2020-09-25 13:13:46,810 INFO L226 Difference]: Without dead ends: 290 [2020-09-25 13:13:46,816 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 13:13:46,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2020-09-25 13:13:46,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 249. [2020-09-25 13:13:46,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2020-09-25 13:13:46,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 269 transitions. [2020-09-25 13:13:46,967 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 269 transitions. Word has length 142 [2020-09-25 13:13:46,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:13:46,968 INFO L479 AbstractCegarLoop]: Abstraction has 249 states and 269 transitions. [2020-09-25 13:13:46,969 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 13:13:46,969 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 269 transitions. [2020-09-25 13:13:46,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-25 13:13:46,981 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:13:46,981 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:13:46,982 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 13:13:46,982 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:13:46,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:13:46,982 INFO L82 PathProgramCache]: Analyzing trace with hash 898133333, now seen corresponding path program 1 times [2020-09-25 13:13:46,983 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:13:46,983 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [796958573] [2020-09-25 13:13:46,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:13:47,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:13:47,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:13:47,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:13:48,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:13:48,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:13:48,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:13:50,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:13:52,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:13:52,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-09-25 13:13:52,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 13:13:52,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-09-25 13:13:52,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:13:52,067 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:13:52,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 13:13:52,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 13:13:52,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-25 13:13:52,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:13:52,445 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:13:52,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:13:52,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:13:52,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:13:52,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:13:52,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:13:52,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:13:52,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 229 [2020-09-25 13:13:52,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:13:52,713 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:13:52,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:13:52,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:13:52,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 13:13:52,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:13:52,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:13:52,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:13:52,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:13:52,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:13:52,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:13:52,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:13:52,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:13:52,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:13:52,762 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:13:52,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:13:52,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:13:52,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:13:52,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:13:52,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:13:52,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:13:52,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:13:52,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:13:52,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:13:52,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:13:52,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:13:52,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:13:52,772 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:13:52,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:13:52,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:13:52,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:13:52,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:13:52,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:13:52,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:13:52,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:13:52,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:13:52,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:13:52,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:13:52,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 13:13:52,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:13:52,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:13:52,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:13:52,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:13:52,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:13:52,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:13:52,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:13:52,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:13:52,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:13:52,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:13:52,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:13:52,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:13:52,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:13:52,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:13:52,794 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:13:52,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:13:52,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:13:52,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:13:52,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:13:52,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-25 13:13:52,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:13:52,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:13:52,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:13:52,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 13:13:52,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:13:52,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:13:52,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:13:52,823 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:13:52,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:13:52,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:13:52,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 13:13:52,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:13:52,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:13:52,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:13:52,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:13:52,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:13:52,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 13:13:52,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:13:52,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:13:52,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:13:52,833 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:13:52,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:13:52,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:13:52,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:13:52,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:13:52,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:13:52,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:13:52,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:13:52,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:13:52,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:13:52,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:13:52,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:13:52,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:13:52,843 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:13:52,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:13:52,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:13:52,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:13:52,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:13:52,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 13:13:52,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:13:52,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:13:52,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:13:52,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:13:52,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:13:52,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 13:13:52,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:13:52,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:13:52,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:13:52,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:13:52,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:13:52,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:13:52,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 13:13:52,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:13:52,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:13:52,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:13:52,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:13:52,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:13:52,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:13:52,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:13:52,895 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:13:52,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:13:52,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:13:52,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:13:52,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:13:52,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:13:52,937 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [796958573] [2020-09-25 13:13:52,937 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:13:52,937 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 13:13:52,938 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752591311] [2020-09-25 13:13:52,943 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 13:13:52,944 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:13:52,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 13:13:52,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 13:13:52,945 INFO L87 Difference]: Start difference. First operand 249 states and 269 transitions. Second operand 9 states. [2020-09-25 13:13:53,472 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:13:55,103 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:13:55,453 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:13:55,908 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:13:56,264 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:13:56,572 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:13:56,874 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:13:57,194 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:13:58,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:13:58,753 INFO L93 Difference]: Finished difference Result 617 states and 753 transitions. [2020-09-25 13:13:58,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 13:13:58,754 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 156 [2020-09-25 13:13:58,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:13:58,762 INFO L225 Difference]: With dead ends: 617 [2020-09-25 13:13:58,763 INFO L226 Difference]: Without dead ends: 478 [2020-09-25 13:13:58,766 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-25 13:13:58,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2020-09-25 13:13:58,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 382. [2020-09-25 13:13:58,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 382 states. [2020-09-25 13:13:58,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 430 transitions. [2020-09-25 13:13:58,861 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 430 transitions. Word has length 156 [2020-09-25 13:13:58,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:13:58,862 INFO L479 AbstractCegarLoop]: Abstraction has 382 states and 430 transitions. [2020-09-25 13:13:58,862 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 13:13:58,862 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 430 transitions. [2020-09-25 13:13:58,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-09-25 13:13:58,865 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:13:58,866 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] [2020-09-25 13:13:58,866 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 13:13:58,866 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:13:58,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:13:58,867 INFO L82 PathProgramCache]: Analyzing trace with hash 1450357178, now seen corresponding path program 1 times [2020-09-25 13:13:58,867 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:13:58,867 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2040667883] [2020-09-25 13:13:58,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:13:58,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:13:58,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:00,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:00,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:00,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:03,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:03,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-09-25 13:14:03,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 13:14:03,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5048 [2020-09-25 13:14:03,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:03,967 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:03,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 13:14:03,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 13:14:03,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-09-25 13:14:03,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:04,329 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:14:04,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:14:04,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:04,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:04,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:04,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:14:04,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:04,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 240 [2020-09-25 13:14:04,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:04,602 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:04,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:14:04,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:04,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 13:14:04,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:14:04,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:14:04,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:04,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:04,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:04,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:14:04,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:04,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:14:04,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:04,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:04,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:14:04,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:04,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:14:04,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:04,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:14:04,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:04,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:04,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:04,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:14:04,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:04,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:14:04,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:04,663 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:04,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:14:04,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:04,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:14:04,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:14:04,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:14:04,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:04,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:04,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:04,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:14:04,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:04,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 13:14:04,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:04,675 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:04,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:14:04,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:04,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:14:04,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:04,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:14:04,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:04,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:04,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:04,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:14:04,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:04,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:14:04,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:04,683 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:04,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:14:04,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:04,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:14:04,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:14:04,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-25 13:14:04,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:04,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:04,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:04,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:14:04,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:04,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 13:14:04,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:04,706 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:04,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:14:04,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 13:14:04,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 13:14:04,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:04,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 13:14:04,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:04,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:04,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:04,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 13:14:04,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:04,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 13:14:04,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:04,758 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:04,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:14:04,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:04,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 13:14:04,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:14:04,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:14:04,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:04,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:04,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:04,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 13:14:04,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:04,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:14:04,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:04,765 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:04,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:14:04,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:04,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:14:04,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:04,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:14:04,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:04,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:04,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:04,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:14:04,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:04,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:14:04,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:04,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:04,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:14:04,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:04,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:14:04,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:04,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 13:14:04,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:04,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:04,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:04,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:14:04,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:04,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 13:14:04,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:04,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:04,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:14:04,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:04,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:14:04,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:04,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-09-25 13:14:04,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:04,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:04,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:04,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:14:04,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:04,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:14:04,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:04,824 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:04,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:14:04,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:14:04,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:14:04,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:04,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:14:04,873 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2040667883] [2020-09-25 13:14:04,873 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:14:04,873 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-25 13:14:04,874 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988118793] [2020-09-25 13:14:04,875 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 13:14:04,875 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:14:04,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 13:14:04,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2020-09-25 13:14:04,876 INFO L87 Difference]: Start difference. First operand 382 states and 430 transitions. Second operand 12 states. [2020-09-25 13:14:05,354 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:14:06,480 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:14:07,607 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:14:07,976 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:14:08,561 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:14:08,949 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:14:09,816 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:14:10,198 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:14:10,639 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:14:11,065 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:14:11,391 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:14:13,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:14:13,372 INFO L93 Difference]: Finished difference Result 841 states and 1067 transitions. [2020-09-25 13:14:13,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-09-25 13:14:13,373 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 170 [2020-09-25 13:14:13,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:14:13,380 INFO L225 Difference]: With dead ends: 841 [2020-09-25 13:14:13,380 INFO L226 Difference]: Without dead ends: 689 [2020-09-25 13:14:13,383 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 179 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=201, Invalid=791, Unknown=0, NotChecked=0, Total=992 [2020-09-25 13:14:13,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 689 states. [2020-09-25 13:14:13,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 689 to 499. [2020-09-25 13:14:13,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 499 states. [2020-09-25 13:14:13,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 565 transitions. [2020-09-25 13:14:13,503 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 565 transitions. Word has length 170 [2020-09-25 13:14:13,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:14:13,504 INFO L479 AbstractCegarLoop]: Abstraction has 499 states and 565 transitions. [2020-09-25 13:14:13,504 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 13:14:13,504 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 565 transitions. [2020-09-25 13:14:13,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-09-25 13:14:13,507 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:14:13,507 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] [2020-09-25 13:14:13,508 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 13:14:13,508 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:14:13,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:14:13,508 INFO L82 PathProgramCache]: Analyzing trace with hash -2057660916, now seen corresponding path program 1 times [2020-09-25 13:14:13,508 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:14:13,509 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1514574432] [2020-09-25 13:14:13,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:14:13,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:13,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:13,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:13,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:18,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:18,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:18,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:18,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-09-25 13:14:18,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 13:14:18,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 13:14:18,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:18,561 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:18,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-25 13:14:18,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 13:14:18,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-09-25 13:14:18,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:14:19,016 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:14:19,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:14:19,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:19,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:19,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:19,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:14:19,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:19,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 265 [2020-09-25 13:14:19,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:19,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:19,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:14:19,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:19,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 13:14:19,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:19,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:14:19,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:19,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:19,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:19,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:14:19,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:19,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:14:19,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:19,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:19,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:14:19,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:19,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:14:19,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:19,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:14:19,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:19,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:19,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:19,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:14:19,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:19,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:14:19,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:19,398 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:19,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:14:19,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:19,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:14:19,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:19,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:14:19,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:19,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:19,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:19,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:14:19,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:19,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 13:14:19,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:19,415 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:19,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:14:19,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:19,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:14:19,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:19,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:14:19,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:19,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:19,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:19,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:14:19,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:19,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:14:19,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:19,426 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:19,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:14:19,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:19,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:14:19,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:19,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-25 13:14:19,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:19,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:19,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:19,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:14:19,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:19,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 13:14:19,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:19,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:19,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:14:19,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:19,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 13:14:19,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:19,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 13:14:19,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:19,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:19,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:19,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:19,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:19,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 13:14:19,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 13:14:19,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 13:14:19,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:19,504 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:19,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:14:19,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 13:14:19,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 13:14:19,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:19,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:14:19,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:19,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:19,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:19,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 13:14:19,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:19,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 13:14:19,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:19,539 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:19,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:14:19,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 13:14:19,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 13:14:19,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:19,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:14:19,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:19,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:19,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:19,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:14:19,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:19,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:14:19,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:19,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:19,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:14:19,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:19,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:14:19,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:19,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 13:14:19,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:19,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:19,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:19,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:14:19,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:19,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:14:19,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:19,558 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:19,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:14:19,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:19,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:14:19,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:19,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-09-25 13:14:19,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:19,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:19,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:19,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:14:19,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:19,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 13:14:19,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:19,576 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:19,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:14:19,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:19,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:14:19,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:19,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:14:19,740 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1514574432] [2020-09-25 13:14:19,741 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:14:19,741 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 13:14:19,742 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384067236] [2020-09-25 13:14:19,742 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 13:14:19,743 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:14:19,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 13:14:19,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 13:14:19,744 INFO L87 Difference]: Start difference. First operand 499 states and 565 transitions. Second operand 10 states. [2020-09-25 13:14:20,500 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:14:21,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:14:21,596 INFO L93 Difference]: Finished difference Result 664 states and 778 transitions. [2020-09-25 13:14:21,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 13:14:21,597 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 170 [2020-09-25 13:14:21,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:14:21,598 INFO L225 Difference]: With dead ends: 664 [2020-09-25 13:14:21,598 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 13:14:21,600 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 22 SyntacticMatches, 6 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2020-09-25 13:14:21,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 13:14:21,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 13:14:21,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 13:14:21,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 13:14:21,601 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 170 [2020-09-25 13:14:21,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:14:21,602 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 13:14:21,602 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 13:14:21,602 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 13:14:21,602 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 13:14:21,602 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 13:14:21,605 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 13:14:21,798 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 13:14:21,979 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:14:22,159 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:14:22,333 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 13:14:22,496 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:14:22,916 WARN L193 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 193 [2020-09-25 13:14:23,303 WARN L193 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 193 [2020-09-25 13:14:23,696 WARN L193 SmtUtils]: Spent 391.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-09-25 13:14:24,072 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191