/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=BIGGEST --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_product35.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 20:16:20,473 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 20:16:20,477 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 20:16:20,505 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 20:16:20,505 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 20:16:20,507 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 20:16:20,508 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 20:16:20,510 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 20:16:20,512 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 20:16:20,513 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 20:16:20,514 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 20:16:20,516 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 20:16:20,516 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 20:16:20,517 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 20:16:20,518 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 20:16:20,520 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 20:16:20,524 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 20:16:20,525 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 20:16:20,527 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 20:16:20,532 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 20:16:20,536 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 20:16:20,539 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 20:16:20,540 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 20:16:20,542 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 20:16:20,547 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 20:16:20,547 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 20:16:20,547 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 20:16:20,549 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 20:16:20,550 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 20:16:20,553 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 20:16:20,553 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 20:16:20,554 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 20:16:20,555 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 20:16:20,556 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 20:16:20,557 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 20:16:20,557 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 20:16:20,558 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 20:16:20,559 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 20:16:20,559 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 20:16:20,569 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 20:16:20,576 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 20:16:20,577 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 20:16:20,631 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 20:16:20,631 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 20:16:20,634 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 20:16:20,634 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 20:16:20,634 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 20:16:20,634 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 20:16:20,635 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 20:16:20,636 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 20:16:20,636 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 20:16:20,636 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 20:16:20,637 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 20:16:20,637 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 20:16:20,637 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 20:16:20,638 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 20:16:20,639 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 20:16:20,639 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 20:16:20,639 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 20:16:20,639 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 20:16:20,640 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 20:16:20,640 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 20:16:20,640 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 20:16:20,640 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 20:16:20,641 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 20:16:20,641 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 20:16:20,641 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 20:16:20,641 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 20:16:20,641 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 20:16:20,642 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 20:16:20,642 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 20:16:20,642 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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;log-additional-information=true; [2020-09-24 20:16:21,129 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 20:16:21,157 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 20:16:21,161 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 20:16:21,164 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 20:16:21,164 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 20:16:21,165 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product35.cil.c [2020-09-24 20:16:21,259 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a900de105/5f66bafbfc004f6780f63c3db520acf8/FLAGcfa2e4d63 [2020-09-24 20:16:21,924 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 20:16:21,925 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product35.cil.c [2020-09-24 20:16:21,950 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a900de105/5f66bafbfc004f6780f63c3db520acf8/FLAGcfa2e4d63 [2020-09-24 20:16:22,167 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a900de105/5f66bafbfc004f6780f63c3db520acf8 [2020-09-24 20:16:22,179 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 20:16:22,184 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 20:16:22,185 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 20:16:22,185 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 20:16:22,190 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 20:16:22,191 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:16:22" (1/1) ... [2020-09-24 20:16:22,195 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@559d5a1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:16:22, skipping insertion in model container [2020-09-24 20:16:22,196 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:16:22" (1/1) ... [2020-09-24 20:16:22,205 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 20:16:22,274 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 20:16:22,755 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:16:22,769 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 20:16:22,849 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:16:22,888 INFO L208 MainTranslator]: Completed translation [2020-09-24 20:16:22,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:16:22 WrapperNode [2020-09-24 20:16:22,889 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 20:16:22,890 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 20:16:22,890 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 20:16:22,890 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 20:16:22,908 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:16:22" (1/1) ... [2020-09-24 20:16:22,908 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:16:22" (1/1) ... [2020-09-24 20:16:22,928 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:16:22" (1/1) ... [2020-09-24 20:16:22,929 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:16:22" (1/1) ... [2020-09-24 20:16:22,979 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:16:22" (1/1) ... [2020-09-24 20:16:22,990 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:16:22" (1/1) ... [2020-09-24 20:16:22,995 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:16:22" (1/1) ... [2020-09-24 20:16:23,003 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 20:16:23,003 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 20:16:23,003 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 20:16:23,004 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 20:16:23,005 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:16:22" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 20:16:23,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 20:16:23,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 20:16:23,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 20:16:23,105 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 20:16:23,105 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-24 20:16:23,105 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 20:16:23,105 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 20:16:23,105 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 20:16:23,106 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 20:16:23,106 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 20:16:23,106 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 20:16:23,106 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 20:16:23,106 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 20:16:23,107 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 20:16:23,107 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 20:16:23,107 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 20:16:23,107 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 20:16:23,107 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 20:16:23,108 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 20:16:23,108 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 20:16:23,108 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 20:16:23,108 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 20:16:23,109 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 20:16:23,109 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 20:16:23,109 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 20:16:23,109 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 20:16:23,109 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 20:16:23,109 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 20:16:23,110 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 20:16:23,110 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 20:16:23,110 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 20:16:23,110 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 20:16:23,110 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 20:16:23,110 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 20:16:23,111 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 20:16:23,111 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 20:16:23,111 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 20:16:23,111 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 20:16:23,111 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 20:16:23,111 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 20:16:23,112 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 20:16:23,112 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 20:16:23,112 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 20:16:23,112 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 20:16:23,112 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 20:16:23,112 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 20:16:23,112 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 20:16:23,113 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 20:16:23,113 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 20:16:23,113 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 20:16:23,113 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-24 20:16:23,113 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 20:16:23,113 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 20:16:23,114 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 20:16:23,114 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 20:16:23,114 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 20:16:23,114 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 20:16:23,114 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 20:16:23,114 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 20:16:23,115 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 20:16:23,115 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 20:16:23,115 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 20:16:23,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 20:16:23,115 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 20:16:23,115 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 20:16:23,116 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 20:16:23,116 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 20:16:23,116 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 20:16:23,116 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 20:16:23,116 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 20:16:23,116 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 20:16:23,116 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 20:16:23,117 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 20:16:23,117 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 20:16:23,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 20:16:23,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 20:16:23,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 20:16:23,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 20:16:23,118 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 20:16:23,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 20:16:23,118 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 20:16:23,118 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 20:16:23,118 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 20:16:23,118 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 20:16:23,119 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 20:16:23,119 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 20:16:23,119 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 20:16:23,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 20:16:23,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 20:16:23,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 20:16:24,492 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 20:16:24,492 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 20:16:24,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:16:24 BoogieIcfgContainer [2020-09-24 20:16:24,506 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 20:16:24,509 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 20:16:24,510 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 20:16:24,514 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 20:16:24,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 08:16:22" (1/3) ... [2020-09-24 20:16:24,515 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11a038d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:16:24, skipping insertion in model container [2020-09-24 20:16:24,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:16:22" (2/3) ... [2020-09-24 20:16:24,516 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11a038d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:16:24, skipping insertion in model container [2020-09-24 20:16:24,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:16:24" (3/3) ... [2020-09-24 20:16:24,519 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product35.cil.c [2020-09-24 20:16:24,531 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 20:16:24,547 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 20:16:24,572 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 20:16:24,626 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 20:16:24,626 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 20:16:24,626 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 20:16:24,626 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 20:16:24,627 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 20:16:24,627 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 20:16:24,627 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 20:16:24,627 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 20:16:24,669 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states. [2020-09-24 20:16:24,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 20:16:24,686 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:16:24,688 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:16:24,688 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:16:24,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:16:24,696 INFO L82 PathProgramCache]: Analyzing trace with hash 808133404, now seen corresponding path program 1 times [2020-09-24 20:16:24,706 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:16:24,706 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1440531695] [2020-09-24 20:16:24,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:16:25,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:16:25,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:16:25,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:16:26,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:16:28,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:16:30,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:16:30,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 20:16:30,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 20:16:30,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-24 20:16:30,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:16:30,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 20:16:30,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-24 20:16:30,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-24 20:16:30,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 20:16:30,590 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 20:16:30,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:16:30,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:16:30,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:16:30,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:16:30,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 20:16:30,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:16:30,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 271 [2020-09-24 20:16:30,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:16:30,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:16:30,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:16:30,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 20:16:30,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:16:30,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 20:16:30,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:16:30,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:16:30,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:16:30,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:16:30,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:16:30,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 20:16:30,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:16:30,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:16:30,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:16:30,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:16:30,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:16:30,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 20:16:30,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:16:30,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:16:31,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:16:31,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:16:31,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:16:31,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:16:31,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:16:31,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:16:31,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:16:31,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:16:31,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:16:31,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 20:16:31,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:16:31,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:16:31,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:16:31,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:16:31,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:16:31,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 20:16:31,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:16:31,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:16:31,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:16:31,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:16:31,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:16:31,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 20:16:31,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:16:31,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:16:31,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:16:31,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:16:31,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:16:31,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:16:31,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:16:31,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:16:31,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:16:31,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:16:31,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:16:31,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 20:16:31,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:16:31,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:16:31,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:16:31,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:16:31,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:16:31,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 20:16:31,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:16:31,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:16:31,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:16:31,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:16:31,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:16:31,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 20:16:31,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:16:31,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:16:31,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:16:31,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:16:31,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:16:31,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:16:31,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:16:31,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:16:31,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:16:31,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:16:31,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:16:31,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:16:31,165 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1440531695] [2020-09-24 20:16:31,168 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:16:31,168 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 20:16:31,170 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149808106] [2020-09-24 20:16:31,181 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 20:16:31,181 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:16:31,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 20:16:31,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 20:16:31,203 INFO L87 Difference]: Start difference. First operand 287 states. Second operand 8 states. [2020-09-24 20:16:31,806 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 20:16:32,913 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:16:33,195 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:16:33,514 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:16:33,889 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:16:34,203 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 20:16:34,558 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:16:34,856 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:16:36,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:16:36,832 INFO L93 Difference]: Finished difference Result 573 states and 722 transitions. [2020-09-24 20:16:36,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 20:16:36,834 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-24 20:16:36,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:16:36,879 INFO L225 Difference]: With dead ends: 573 [2020-09-24 20:16:36,879 INFO L226 Difference]: Without dead ends: 397 [2020-09-24 20:16:36,893 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-24 20:16:36,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2020-09-24 20:16:37,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 355. [2020-09-24 20:16:37,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 355 states. [2020-09-24 20:16:37,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 409 transitions. [2020-09-24 20:16:37,065 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 409 transitions. Word has length 142 [2020-09-24 20:16:37,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:16:37,066 INFO L479 AbstractCegarLoop]: Abstraction has 355 states and 409 transitions. [2020-09-24 20:16:37,066 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 20:16:37,066 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 409 transitions. [2020-09-24 20:16:37,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-24 20:16:37,072 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:16:37,072 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:16:37,072 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 20:16:37,072 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:16:37,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:16:37,073 INFO L82 PathProgramCache]: Analyzing trace with hash 1813507587, now seen corresponding path program 1 times [2020-09-24 20:16:37,073 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:16:37,074 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [271615094] [2020-09-24 20:16:37,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:16:37,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:16:37,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:16:37,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:16:38,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:16:41,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:16:42,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:16:42,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-24 20:16:42,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 20:16:42,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5032 [2020-09-24 20:16:42,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:16:42,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 20:16:42,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-24 20:16:42,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-09-24 20:16:42,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:16:42,542 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 20:16:42,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:16:42,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:16:42,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:16:42,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:16:42,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 20:16:42,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:16:42,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 222 [2020-09-24 20:16:42,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:16:42,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:16:42,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:16:42,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-24 20:16:42,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:16:42,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 20:16:42,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:16:42,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:16:42,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:16:42,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:16:42,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:16:42,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:16:42,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:16:42,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:16:42,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:16:42,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:16:42,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:16:42,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 20:16:42,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:16:42,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:16:42,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:16:42,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:16:42,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:16:42,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:16:42,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:16:42,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:16:42,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:16:42,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:16:42,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:16:42,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 20:16:42,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:16:42,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:16:42,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:16:42,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:16:42,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:16:42,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 20:16:42,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:16:42,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:16:42,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:16:42,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:16:42,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:16:42,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 20:16:42,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:16:42,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:16:42,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:16:42,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:16:42,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:16:42,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:16:42,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:16:42,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:16:42,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:16:42,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:16:42,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:16:42,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-24 20:16:42,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:16:42,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:16:42,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:16:42,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:16:42,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:16:42,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 20:16:42,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:16:42,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:16:42,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:16:42,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 20:16:42,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:16:42,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-24 20:16:42,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:16:42,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:16:42,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:16:42,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:16:42,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:16:42,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:16:42,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:16:42,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:16:42,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:16:42,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:16:42,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:16:42,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 20:16:42,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:16:42,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:16:42,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:16:42,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:16:42,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:16:42,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 20:16:42,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:16:42,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:16:42,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:16:42,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:16:42,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:16:43,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:16:43,007 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [271615094] [2020-09-24 20:16:43,008 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:16:43,008 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 20:16:43,012 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898157991] [2020-09-24 20:16:43,015 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 20:16:43,015 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:16:43,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 20:16:43,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 20:16:43,016 INFO L87 Difference]: Start difference. First operand 355 states and 409 transitions. Second operand 9 states. [2020-09-24 20:16:43,486 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 20:16:45,106 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 20:16:45,383 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:16:45,725 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:16:46,143 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:16:46,446 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:16:46,741 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:16:47,046 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:16:47,343 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:16:48,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:16:48,172 INFO L93 Difference]: Finished difference Result 868 states and 1173 transitions. [2020-09-24 20:16:48,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 20:16:48,175 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 148 [2020-09-24 20:16:48,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:16:48,188 INFO L225 Difference]: With dead ends: 868 [2020-09-24 20:16:48,191 INFO L226 Difference]: Without dead ends: 623 [2020-09-24 20:16:48,194 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-24 20:16:48,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 623 states. [2020-09-24 20:16:48,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 623 to 508. [2020-09-24 20:16:48,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 508 states. [2020-09-24 20:16:48,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 631 transitions. [2020-09-24 20:16:48,311 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 631 transitions. Word has length 148 [2020-09-24 20:16:48,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:16:48,312 INFO L479 AbstractCegarLoop]: Abstraction has 508 states and 631 transitions. [2020-09-24 20:16:48,312 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 20:16:48,312 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 631 transitions. [2020-09-24 20:16:48,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2020-09-24 20:16:48,317 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:16:48,317 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:16:48,318 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 20:16:48,318 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:16:48,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:16:48,318 INFO L82 PathProgramCache]: Analyzing trace with hash -1116441452, now seen corresponding path program 1 times [2020-09-24 20:16:48,319 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:16:48,319 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2142497997] [2020-09-24 20:16:48,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:16:48,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:16:48,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:16:48,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:16:48,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:16:48,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:16:53,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:16:53,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 282 [2020-09-24 20:16:53,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 20:16:53,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5051 [2020-09-24 20:16:53,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:16:53,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 20:16:53,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 20:16:53,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-09-24 20:16:53,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:16:53,749 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 20:16:53,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:16:53,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:16:53,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:16:54,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:16:54,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 20:16:54,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:16:54,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 228 [2020-09-24 20:16:54,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:16:54,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:16:54,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:16:54,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 20:16:54,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:16:54,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 20:16:54,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:16:54,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:16:54,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:16:54,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:16:54,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:16:54,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:16:54,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:16:54,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:16:54,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:16:54,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:16:54,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:16:54,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 20:16:54,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:16:54,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:16:54,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:16:54,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:16:54,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:16:54,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:16:54,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:16:54,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:16:54,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:16:54,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:16:54,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:16:54,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 20:16:54,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:16:54,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:16:54,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:16:54,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:16:54,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:16:54,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 20:16:54,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:16:54,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:16:54,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:16:54,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:16:54,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:16:54,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 20:16:54,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:16:54,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:16:54,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:16:54,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:16:54,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:16:54,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:16:54,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:16:54,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:16:54,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:16:54,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:16:54,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:16:54,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-09-24 20:16:54,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:16:54,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:16:54,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:16:54,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 20:16:54,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:16:54,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 20:16:54,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:16:54,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:16:54,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-24 20:16:54,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-24 20:16:54,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:16:54,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:16:54,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:16:54,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:16:54,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:16:54,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 20:16:54,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:16:54,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 20:16:54,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:16:54,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:16:54,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:16:54,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 20:16:54,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 20:16:54,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:16:54,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:16:54,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:16:54,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:16:54,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:16:54,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:16:54,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:16:54,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:16:54,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:16:54,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:16:54,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:16:54,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:16:54,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-24 20:16:54,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:16:54,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:16:54,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:16:54,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:16:54,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-09-24 20:16:54,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 20:16:54,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 142 [2020-09-24 20:16:54,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:16:54,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:16:54,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-24 20:16:54,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:16:54,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:16:54,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:16:54,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:16:54,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:16:54,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:16:54,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 20:16:54,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:16:54,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-09-24 20:16:54,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:16:54,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:16:54,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 20:16:54,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:16:54,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:16:54,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:16:54,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:16:54,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:16:54,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:16:54,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 20:16:54,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:16:54,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-24 20:16:54,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:16:54,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:16:54,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:16:54,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 20:16:54,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:16:54,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 20:16:54,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:16:54,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:16:54,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:16:54,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:16:54,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:16:54,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 20:16:54,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:16:54,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:16:54,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:16:54,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:16:54,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:16:54,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 20:16:54,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:16:54,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:16:54,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:16:54,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:16:54,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:16:54,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:16:54,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:16:54,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:16:54,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 20:16:54,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:16:54,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 60 [2020-09-24 20:16:54,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-09-24 20:16:54,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:16:54,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:16:54,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:16:54,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 20:16:54,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:16:54,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 20:16:54,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:16:54,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:16:54,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-24 20:16:54,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:16:54,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:16:54,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:16:54,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:16:54,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:16:54,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:16:54,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:16:54,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:16:54,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:16:54,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:16:54,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:16:54,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:16:54,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:16:54,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:16:54,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2020-09-24 20:16:54,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:16:54,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:16:54,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:16:54,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:16:54,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:16:54,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:16:54,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:16:54,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:16:54,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 20:16:54,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:16:54,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:16:54,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2020-09-24 20:16:54,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:16:54,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:16:54,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:16:54,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:16:54,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:16:54,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:16:54,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:16:54,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:16:54,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:16:54,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:16:54,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:16:54,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2020-09-24 20:16:54,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:16:54,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:16:54,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:16:54,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:16:54,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:16:54,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:16:54,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:16:54,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:16:54,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:16:54,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:16:54,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:16:54,854 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-09-24 20:16:54,855 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2142497997] [2020-09-24 20:16:54,856 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:16:54,856 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-24 20:16:54,856 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332740699] [2020-09-24 20:16:54,857 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-24 20:16:54,858 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:16:54,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-24 20:16:54,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2020-09-24 20:16:54,858 INFO L87 Difference]: Start difference. First operand 508 states and 631 transitions. Second operand 13 states. [2020-09-24 20:16:55,419 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 20:16:56,581 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 20:16:56,966 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:16:57,345 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:16:57,713 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 20:16:58,081 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:16:58,467 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 20:16:58,800 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:16:59,550 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:16:59,919 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 20:17:00,285 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-24 20:17:00,657 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:17:01,063 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 20:17:01,407 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:17:03,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:17:03,818 INFO L93 Difference]: Finished difference Result 1665 states and 2445 transitions. [2020-09-24 20:17:03,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-09-24 20:17:03,818 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 229 [2020-09-24 20:17:03,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:17:03,832 INFO L225 Difference]: With dead ends: 1665 [2020-09-24 20:17:03,833 INFO L226 Difference]: Without dead ends: 1267 [2020-09-24 20:17:03,837 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 44 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 179 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=242, Invalid=814, Unknown=0, NotChecked=0, Total=1056 [2020-09-24 20:17:03,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1267 states. [2020-09-24 20:17:04,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1267 to 919. [2020-09-24 20:17:04,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 919 states. [2020-09-24 20:17:04,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 919 states to 919 states and 1160 transitions. [2020-09-24 20:17:04,015 INFO L78 Accepts]: Start accepts. Automaton has 919 states and 1160 transitions. Word has length 229 [2020-09-24 20:17:04,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:17:04,017 INFO L479 AbstractCegarLoop]: Abstraction has 919 states and 1160 transitions. [2020-09-24 20:17:04,017 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-24 20:17:04,017 INFO L276 IsEmpty]: Start isEmpty. Operand 919 states and 1160 transitions. [2020-09-24 20:17:04,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2020-09-24 20:17:04,022 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:17:04,022 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:17:04,023 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 20:17:04,023 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:17:04,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:17:04,023 INFO L82 PathProgramCache]: Analyzing trace with hash -1521360857, now seen corresponding path program 1 times [2020-09-24 20:17:04,024 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:17:04,024 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2073856098] [2020-09-24 20:17:04,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:17:04,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:04,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:04,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:04,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:06,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:06,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-09-24 20:17:06,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 20:17:06,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2019 [2020-09-24 20:17:06,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:06,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:17:06,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 164 [2020-09-24 20:17:06,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 20:17:06,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:17:06,368 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 20:17:06,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:17:06,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:06,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:06,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:06,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 20:17:06,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:06,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-09-24 20:17:06,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:06,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:17:06,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:17:06,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:17:06,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:17:06,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 20:17:06,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:06,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:06,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:06,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:17:06,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:06,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 20:17:06,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:06,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:17:06,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:17:06,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:17:06,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:17:06,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 20:17:06,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:06,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:06,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:06,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:17:06,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:06,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:17:06,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:06,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:17:06,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:17:06,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:17:06,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:17:06,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 20:17:06,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:06,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:06,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:06,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:17:06,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:06,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:17:06,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:06,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:17:06,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:17:06,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:17:06,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:17:06,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 20:17:06,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:06,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:06,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:06,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:17:06,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:06,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 20:17:06,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:06,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:17:06,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:17:06,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:17:06,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:17:06,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 20:17:06,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:06,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:06,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:06,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-09-24 20:17:06,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:06,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-09-24 20:17:06,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:06,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:17:06,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-24 20:17:06,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 20:17:06,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:17:06,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:17:06,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:06,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:06,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:06,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 20:17:06,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:06,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-24 20:17:06,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:06,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:17:06,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 20:17:06,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 20:17:06,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:17:06,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:17:06,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:06,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:06,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:06,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 20:17:06,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:06,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-24 20:17:06,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:06,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:17:06,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 20:17:06,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 20:17:06,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:17:06,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 20:17:06,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:06,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:06,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:06,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:17:06,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:06,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 20:17:06,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:06,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 20:17:06,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:17:06,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:17:06,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:17:06,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 20:17:06,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:06,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:06,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:06,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:17:06,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:06,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:17:06,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:06,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:17:06,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 20:17:06,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:17:06,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:17:06,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-09-24 20:17:06,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:06,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:06,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:06,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 20:17:06,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:06,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 20:17:06,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:06,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:17:06,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-24 20:17:06,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:17:06,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:17:06,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:17:06,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:06,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:06,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:06,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:17:06,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:06,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:17:06,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:06,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:17:06,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:17:06,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:17:06,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:17:06,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2020-09-24 20:17:06,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:06,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:06,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:06,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:17:06,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:06,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:17:06,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:06,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:17:06,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 20:17:06,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:17:06,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:17:06,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2020-09-24 20:17:06,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:06,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:06,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:06,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 20:17:06,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:06,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:17:06,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:06,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:17:06,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-24 20:17:06,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:17:06,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:17:06,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:17:06,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:06,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:06,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:06,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:17:06,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:06,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:17:06,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:06,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:17:06,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:17:06,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:17:06,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:17:06,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2020-09-24 20:17:06,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:06,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:06,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:06,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:17:06,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:06,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:17:06,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:06,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:17:06,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:17:06,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:17:06,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:17:06,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-09-24 20:17:06,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:06,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:06,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:06,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:17:06,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:06,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:17:06,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:06,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:17:06,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:17:06,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:17:06,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:17:07,033 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-24 20:17:07,034 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2073856098] [2020-09-24 20:17:07,034 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 20:17:07,034 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-24 20:17:07,035 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109038693] [2020-09-24 20:17:07,036 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 20:17:07,036 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:17:07,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 20:17:07,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-09-24 20:17:07,038 INFO L87 Difference]: Start difference. First operand 919 states and 1160 transitions. Second operand 10 states. [2020-09-24 20:17:08,218 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:17:08,496 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:17:08,826 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:17:09,177 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:17:09,468 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 187