/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 SequenceOfStatements --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 --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product56.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 17:48:41,070 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 17:48:41,072 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 17:48:41,097 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 17:48:41,097 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 17:48:41,098 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 17:48:41,100 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 17:48:41,101 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 17:48:41,103 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 17:48:41,104 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 17:48:41,105 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 17:48:41,107 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 17:48:41,107 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 17:48:41,108 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 17:48:41,113 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 17:48:41,114 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 17:48:41,115 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 17:48:41,119 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 17:48:41,122 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 17:48:41,124 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 17:48:41,130 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 17:48:41,133 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 17:48:41,135 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 17:48:41,136 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 17:48:41,142 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 17:48:41,142 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 17:48:41,142 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 17:48:41,145 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 17:48:41,146 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 17:48:41,147 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 17:48:41,147 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 17:48:41,148 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 17:48:41,150 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 17:48:41,151 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 17:48:41,152 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 17:48:41,152 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 17:48:41,153 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 17:48:41,156 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 17:48:41,156 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 17:48:41,157 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 17:48:41,158 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 17:48:41,159 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 [2020-10-12 17:48:41,199 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 17:48:41,199 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 17:48:41,201 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 17:48:41,202 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 17:48:41,202 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 17:48:41,202 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 17:48:41,203 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 17:48:41,203 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 17:48:41,203 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 17:48:41,203 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 17:48:41,204 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 17:48:41,204 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 17:48:41,204 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 17:48:41,205 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 17:48:41,205 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 17:48:41,205 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 17:48:41,205 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 17:48:41,205 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 17:48:41,206 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 17:48:41,206 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 17:48:41,206 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 17:48:41,206 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 17:48:41,207 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 17:48:41,207 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 17:48:41,207 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 17:48:41,207 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 17:48:41,208 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 17:48:41,208 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 17:48:41,208 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 17:48:41,208 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 -> SequenceOfStatements 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;unknown-allowed=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;unknown-allowed=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;unknown-allowed=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;unknown-allowed=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;unknown-allowed=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;unknown-allowed=true; [2020-10-12 17:48:41,504 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 17:48:41,515 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 17:48:41,519 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 17:48:41,520 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 17:48:41,521 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 17:48:41,521 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product56.cil.c [2020-10-12 17:48:41,575 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3444de9c7/fd2909da1f5648cc9a54b0062f19dd34/FLAG88471d897 [2020-10-12 17:48:42,095 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 17:48:42,096 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product56.cil.c [2020-10-12 17:48:42,109 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3444de9c7/fd2909da1f5648cc9a54b0062f19dd34/FLAG88471d897 [2020-10-12 17:48:42,404 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3444de9c7/fd2909da1f5648cc9a54b0062f19dd34 [2020-10-12 17:48:42,412 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 17:48:42,414 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 17:48:42,415 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 17:48:42,415 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 17:48:42,418 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 17:48:42,419 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 05:48:42" (1/1) ... [2020-10-12 17:48:42,422 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1392f113 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:48:42, skipping insertion in model container [2020-10-12 17:48:42,423 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 05:48:42" (1/1) ... [2020-10-12 17:48:42,430 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 17:48:42,497 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 17:48:42,964 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 17:48:42,976 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 17:48:43,055 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 17:48:43,103 INFO L208 MainTranslator]: Completed translation [2020-10-12 17:48:43,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:48:43 WrapperNode [2020-10-12 17:48:43,104 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 17:48:43,105 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 17:48:43,105 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 17:48:43,105 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 17:48:43,117 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:48:43" (1/1) ... [2020-10-12 17:48:43,117 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:48:43" (1/1) ... [2020-10-12 17:48:43,136 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:48:43" (1/1) ... [2020-10-12 17:48:43,137 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:48:43" (1/1) ... [2020-10-12 17:48:43,170 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:48:43" (1/1) ... [2020-10-12 17:48:43,182 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:48:43" (1/1) ... [2020-10-12 17:48:43,188 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:48:43" (1/1) ... [2020-10-12 17:48:43,197 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 17:48:43,197 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 17:48:43,198 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 17:48:43,198 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 17:48:43,199 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:48:43" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 17:48:43,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 17:48:43,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 17:48:43,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-12 17:48:43,286 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-12 17:48:43,286 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-12 17:48:43,286 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-12 17:48:43,286 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-12 17:48:43,288 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-12 17:48:43,288 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-12 17:48:43,288 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-12 17:48:43,288 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-12 17:48:43,288 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-12 17:48:43,289 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-10-12 17:48:43,289 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-10-12 17:48:43,289 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-12 17:48:43,290 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-12 17:48:43,290 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-12 17:48:43,290 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-12 17:48:43,290 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-12 17:48:43,291 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-12 17:48:43,291 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-12 17:48:43,291 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-10-12 17:48:43,291 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-12 17:48:43,292 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-10-12 17:48:43,292 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-12 17:48:43,293 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-12 17:48:43,293 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-12 17:48:43,293 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-12 17:48:43,293 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-10-12 17:48:43,293 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-12 17:48:43,293 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-12 17:48:43,293 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-12 17:48:43,294 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-12 17:48:43,294 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-12 17:48:43,294 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 17:48:43,294 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-12 17:48:43,294 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-12 17:48:43,294 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-12 17:48:43,295 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-12 17:48:43,295 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-12 17:48:43,296 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-12 17:48:43,296 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-12 17:48:43,297 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-10-12 17:48:43,297 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 17:48:43,297 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 17:48:43,297 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-12 17:48:43,297 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-12 17:48:43,297 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-12 17:48:43,297 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-12 17:48:43,298 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-12 17:48:43,298 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-12 17:48:43,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-12 17:48:43,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-12 17:48:43,299 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-12 17:48:43,299 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-12 17:48:43,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-12 17:48:43,299 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-12 17:48:43,299 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-12 17:48:43,300 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-12 17:48:43,300 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-12 17:48:43,300 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-12 17:48:43,300 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-12 17:48:43,300 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-12 17:48:43,301 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-12 17:48:43,301 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-12 17:48:43,301 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-10-12 17:48:43,301 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-12 17:48:43,301 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-12 17:48:43,301 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-12 17:48:43,302 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-12 17:48:43,302 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-12 17:48:43,303 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-12 17:48:43,305 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-12 17:48:43,305 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-12 17:48:43,305 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-10-12 17:48:43,305 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-12 17:48:43,305 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-12 17:48:43,305 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-12 17:48:43,306 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-12 17:48:43,306 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-10-12 17:48:43,306 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-12 17:48:43,306 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-12 17:48:43,306 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-12 17:48:43,306 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-10-12 17:48:43,307 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-10-12 17:48:43,307 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-10-12 17:48:43,307 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-12 17:48:43,307 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-12 17:48:43,307 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-12 17:48:43,307 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-12 17:48:43,307 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-12 17:48:43,308 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-12 17:48:43,308 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-12 17:48:43,308 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-12 17:48:43,308 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-12 17:48:43,308 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 17:48:43,308 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-12 17:48:43,309 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 17:48:43,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-12 17:48:43,309 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 17:48:44,490 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 17:48:44,490 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-12 17:48:44,495 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:48:44 BoogieIcfgContainer [2020-10-12 17:48:44,496 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 17:48:44,497 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 17:48:44,497 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 17:48:44,503 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 17:48:44,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 05:48:42" (1/3) ... [2020-10-12 17:48:44,505 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2206a7ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 05:48:44, skipping insertion in model container [2020-10-12 17:48:44,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:48:43" (2/3) ... [2020-10-12 17:48:44,505 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2206a7ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 05:48:44, skipping insertion in model container [2020-10-12 17:48:44,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:48:44" (3/3) ... [2020-10-12 17:48:44,508 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product56.cil.c [2020-10-12 17:48:44,520 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 17:48:44,532 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 17:48:44,547 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 17:48:44,581 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 17:48:44,582 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 17:48:44,582 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 17:48:44,583 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 17:48:44,583 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 17:48:44,583 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 17:48:44,583 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 17:48:44,584 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 17:48:44,612 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states. [2020-10-12 17:48:44,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-12 17:48:44,627 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 17:48:44,631 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] [2020-10-12 17:48:44,632 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 17:48:44,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 17:48:44,638 INFO L82 PathProgramCache]: Analyzing trace with hash 733672736, now seen corresponding path program 1 times [2020-10-12 17:48:44,646 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 17:48:44,646 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [360026306] [2020-10-12 17:48:44,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 17:48:44,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:45,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:45,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:45,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:46,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:46,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:49,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:49,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-12 17:48:49,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 17:48:49,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4786 [2020-10-12 17:48:49,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:49,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-12 17:48:49,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 17:48:49,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-12 17:48:49,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 17:48:50,153 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-12 17:48:50,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 17:48:50,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:50,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:50,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:50,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:48:50,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:50,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-12 17:48:50,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:50,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:48:50,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:50,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 17:48:50,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:50,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 17:48:50,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:50,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:50,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:50,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 17:48:50,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:50,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 17:48:50,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:50,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:48:50,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:50,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 17:48:50,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:50,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-12 17:48:50,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:50,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:50,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:50,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 17:48:50,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:50,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:48:50,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:50,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:48:50,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:50,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 17:48:50,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:50,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 17:48:50,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:50,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:50,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:50,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:48:50,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:50,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 17:48:50,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:50,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:48:50,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:50,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 17:48:50,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:50,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 17:48:50,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:50,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:50,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:50,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 17:48:50,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:50,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 17:48:50,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:50,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:48:50,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:50,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 17:48:50,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:50,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-12 17:48:50,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:50,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:50,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:50,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:48:50,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:50,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 17:48:50,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:50,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:48:50,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:50,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 17:48:50,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:50,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-12 17:48:50,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:50,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:50,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:50,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:48:50,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:50,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 17:48:50,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:50,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 17:48:50,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:50,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 17:48:50,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:50,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 17:48:50,348 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [360026306] [2020-10-12 17:48:50,350 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 17:48:50,350 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-12 17:48:50,351 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141080146] [2020-10-12 17:48:50,356 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 17:48:50,357 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 17:48:50,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 17:48:50,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-12 17:48:50,374 INFO L87 Difference]: Start difference. First operand 196 states. Second operand 7 states. [2020-10-12 17:48:50,881 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 17:48:51,922 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 17:48:52,210 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 17:48:52,468 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-12 17:48:53,149 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 17:48:53,400 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 17:48:54,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 17:48:54,644 INFO L93 Difference]: Finished difference Result 452 states and 622 transitions. [2020-10-12 17:48:54,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 17:48:54,646 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 46 [2020-10-12 17:48:54,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 17:48:54,665 INFO L225 Difference]: With dead ends: 452 [2020-10-12 17:48:54,665 INFO L226 Difference]: Without dead ends: 277 [2020-10-12 17:48:54,671 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2020-10-12 17:48:54,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2020-10-12 17:48:54,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 241. [2020-10-12 17:48:54,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2020-10-12 17:48:54,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 302 transitions. [2020-10-12 17:48:54,793 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 302 transitions. Word has length 46 [2020-10-12 17:48:54,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 17:48:54,794 INFO L479 AbstractCegarLoop]: Abstraction has 241 states and 302 transitions. [2020-10-12 17:48:54,794 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 17:48:54,794 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 302 transitions. [2020-10-12 17:48:54,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-12 17:48:54,798 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 17:48:54,799 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] [2020-10-12 17:48:54,799 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 17:48:54,799 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 17:48:54,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 17:48:54,800 INFO L82 PathProgramCache]: Analyzing trace with hash 557418004, now seen corresponding path program 1 times [2020-10-12 17:48:54,800 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 17:48:54,800 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [502482611] [2020-10-12 17:48:54,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 17:48:54,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:54,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:54,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:57,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:57,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-10-12 17:48:57,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 17:48:57,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2477 [2020-10-12 17:48:57,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:57,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 17:48:57,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 17:48:57,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-12 17:48:57,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:57,594 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-12 17:48:57,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 17:48:57,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:57,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:57,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:57,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:48:57,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:57,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-12 17:48:57,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:57,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:48:57,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:57,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 17:48:57,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:57,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 17:48:57,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:57,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:57,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:57,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 17:48:57,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:57,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:48:57,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:57,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:48:57,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:57,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 17:48:57,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:57,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-12 17:48:57,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:57,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:57,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:57,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 17:48:57,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:57,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:48:57,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:57,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:48:57,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:57,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 17:48:57,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:57,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 17:48:57,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:57,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:57,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:57,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:48:57,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:57,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 17:48:57,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:57,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:48:57,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:57,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 17:48:57,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:57,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 17:48:57,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:57,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:57,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:57,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 17:48:57,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:57,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:48:57,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:57,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:48:57,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:57,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 17:48:57,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:57,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-12 17:48:57,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:57,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:57,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:57,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:57,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-12 17:48:57,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 17:48:57,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-12 17:48:57,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:57,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 17:48:57,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-12 17:48:57,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 17:48:57,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:57,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 17:48:57,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:57,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:57,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:57,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-12 17:48:57,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:57,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 17:48:57,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:57,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 17:48:57,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-12 17:48:57,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 17:48:57,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:57,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 17:48:57,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:57,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:57,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:57,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-12 17:48:57,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:57,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 17:48:57,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:57,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 17:48:57,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-12 17:48:57,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 17:48:57,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:57,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 17:48:57,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:57,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:57,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:57,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 17:48:57,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:57,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 17:48:57,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:57,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 17:48:57,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:57,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 17:48:57,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:57,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 17:48:57,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:57,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:57,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:57,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 17:48:57,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:57,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:48:57,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:57,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:48:57,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:57,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:48:57,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:57,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-12 17:48:57,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:57,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:57,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:57,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:48:57,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:57,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:48:57,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:57,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:48:57,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 17:48:57,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:48:57,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:57,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-12 17:48:57,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:57,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:57,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:57,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:48:57,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:57,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 17:48:57,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:57,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 17:48:57,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:57,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 17:48:57,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:57,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-12 17:48:57,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:57,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:57,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:57,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:48:57,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:57,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:48:57,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:57,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:48:57,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 17:48:57,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:48:57,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:57,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 17:48:57,980 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [502482611] [2020-10-12 17:48:57,980 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 17:48:57,980 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-12 17:48:57,980 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449651201] [2020-10-12 17:48:57,982 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 17:48:57,982 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 17:48:57,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 17:48:57,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2020-10-12 17:48:57,983 INFO L87 Difference]: Start difference. First operand 241 states and 302 transitions. Second operand 12 states. [2020-10-12 17:48:58,547 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 17:48:59,304 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 17:48:59,614 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 17:48:59,894 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 17:49:00,333 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 17:49:00,647 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-12 17:49:00,889 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-12 17:49:01,147 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-10-12 17:49:01,466 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-12 17:49:01,775 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-12 17:49:02,178 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 17:49:02,452 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-12 17:49:02,775 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 17:49:03,054 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-12 17:49:05,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 17:49:05,038 INFO L93 Difference]: Finished difference Result 793 states and 1134 transitions. [2020-10-12 17:49:05,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-12 17:49:05,039 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 85 [2020-10-12 17:49:05,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 17:49:05,047 INFO L225 Difference]: With dead ends: 793 [2020-10-12 17:49:05,047 INFO L226 Difference]: Without dead ends: 532 [2020-10-12 17:49:05,053 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=129, Invalid=573, Unknown=0, NotChecked=0, Total=702 [2020-10-12 17:49:05,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2020-10-12 17:49:05,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 441. [2020-10-12 17:49:05,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 441 states. [2020-10-12 17:49:05,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 547 transitions. [2020-10-12 17:49:05,177 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 547 transitions. Word has length 85 [2020-10-12 17:49:05,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 17:49:05,179 INFO L479 AbstractCegarLoop]: Abstraction has 441 states and 547 transitions. [2020-10-12 17:49:05,179 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 17:49:05,179 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 547 transitions. [2020-10-12 17:49:05,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-10-12 17:49:05,190 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 17:49:05,191 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-12 17:49:05,191 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 17:49:05,192 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 17:49:05,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 17:49:05,192 INFO L82 PathProgramCache]: Analyzing trace with hash 796101534, now seen corresponding path program 1 times [2020-10-12 17:49:05,192 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 17:49:05,193 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1458174117] [2020-10-12 17:49:05,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 17:49:05,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:49:05,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:49:05,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:49:05,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:49:05,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:49:05,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:49:05,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:49:06,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:49:06,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:49:10,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:49:10,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-12 17:49:10,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-12 17:49:10,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-10-12 17:49:10,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:49:10,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 17:49:10,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 17:49:10,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-12 17:49:10,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:49:10,493 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-12 17:49:10,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 17:49:10,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:49:10,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:49:10,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:49:10,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:49:10,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:49:10,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-12 17:49:10,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:49:10,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:49:10,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:49:10,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 17:49:10,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 17:49:10,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 17:49:10,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:49:10,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:49:10,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:49:10,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 17:49:10,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:49:10,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:49:10,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:49:10,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:49:10,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:49:10,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 17:49:10,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:49:10,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-12 17:49:10,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:49:10,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:49:10,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:49:10,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 17:49:10,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:49:10,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 17:49:10,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:49:10,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:49:10,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:49:10,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 17:49:10,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 17:49:10,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 17:49:10,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:49:10,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:49:10,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:49:10,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:49:10,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:49:10,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 17:49:10,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:49:10,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:49:10,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:49:10,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 17:49:10,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:49:10,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 17:49:10,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:49:10,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:49:10,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:49:10,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 17:49:10,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:49:10,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 17:49:10,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:49:10,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:49:10,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:49:10,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 17:49:10,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:49:10,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-12 17:49:10,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:49:10,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:49:10,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:49:10,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:49:10,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:49:10,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 17:49:10,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:49:10,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:49:10,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:49:10,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 17:49:10,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 17:49:10,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-12 17:49:10,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:49:10,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:49:10,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:49:10,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-12 17:49:10,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:49:10,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 17:49:10,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:49:10,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:49:10,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 17:49:10,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-12 17:49:10,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:49:10,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 17:49:10,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:49:10,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:49:10,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:49:10,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 17:49:10,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:49:10,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 17:49:10,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:49:10,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:49:10,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:49:10,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 17:49:10,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:49:10,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 17:49:10,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:49:10,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:49:10,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:49:10,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:49:10,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:49:10,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:49:10,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:49:10,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:49:10,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:49:10,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:49:10,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:49:10,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-12 17:49:10,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:49:10,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:49:10,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:49:10,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-12 17:49:10,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:49:10,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 17:49:10,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:49:10,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:49:10,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-12 17:49:10,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:49:10,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:49:10,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 17:49:10,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:49:10,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:49:10,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:49:10,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 17:49:10,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:49:10,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:49:10,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:49:10,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:49:10,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:49:10,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:49:10,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:49:10,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 17:49:10,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:49:10,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:49:10,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:49:10,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:49:10,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:49:10,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:49:10,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:49:10,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:49:10,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:49:10,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:49:10,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 17:49:10,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-12 17:49:10,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:49:10,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:49:10,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:49:10,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:49:10,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-12 17:49:10,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 17:49:10,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 17:49:10,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:49:10,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 17:49:10,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-12 17:49:10,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 17:49:10,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:49:10,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 17:49:10,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:49:10,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:49:10,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:49:10,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-12 17:49:10,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:49:10,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 17:49:10,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:49:10,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 17:49:10,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-12 17:49:10,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 17:49:10,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:49:10,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 17:49:10,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:49:10,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:49:10,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:49:10,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-12 17:49:10,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:49:10,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 17:49:10,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:49:10,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 17:49:10,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-12 17:49:10,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 17:49:10,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:49:10,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 17:49:10,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:49:10,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:49:10,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:49:10,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 17:49:10,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:49:10,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 17:49:10,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:49:10,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 17:49:10,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 17:49:10,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 17:49:10,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 17:49:10,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 17:49:10,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:49:10,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:49:10,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:49:10,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 17:49:10,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:49:10,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 17:49:10,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:49:10,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 17:49:10,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:49:10,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 17:49:10,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:49:10,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-12 17:49:10,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:49:10,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:49:10,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:49:10,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:49:10,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:49:10,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:49:10,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:49:10,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:49:10,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 17:49:10,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:49:10,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:49:10,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-12 17:49:10,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:49:10,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:49:10,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:49:10,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:49:10,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:49:10,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 17:49:10,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:49:10,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:49:10,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 17:49:10,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:49:10,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 17:49:10,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-10-12 17:49:10,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:49:10,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:49:10,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:49:10,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:49:10,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:49:10,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:49:10,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:49:10,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:49:10,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 17:49:10,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:49:10,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 17:49:10,935 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 16 proven. 3 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-12 17:49:10,936 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1458174117] [2020-10-12 17:49:10,936 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 17:49:10,937 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-12 17:49:10,937 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958167807] [2020-10-12 17:49:10,939 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 17:49:10,940 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 17:49:10,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 17:49:10,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2020-10-12 17:49:10,941 INFO L87 Difference]: Start difference. First operand 441 states and 547 transitions. Second operand 12 states. [2020-10-12 17:49:11,357 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 17:49:12,127 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 17:49:12,562 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-12 17:49:12,844 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-12 17:49:13,119 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-12 17:49:15,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 17:49:15,721 INFO L93 Difference]: Finished difference Result 1239 states and 1785 transitions. [2020-10-12 17:49:15,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-12 17:49:15,722 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 127 [2020-10-12 17:49:15,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 17:49:15,729 INFO L225 Difference]: With dead ends: 1239 [2020-10-12 17:49:15,729 INFO L226 Difference]: Without dead ends: 811 [2020-10-12 17:49:15,732 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 48 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=163, Invalid=539, Unknown=0, NotChecked=0, Total=702 [2020-10-12 17:49:15,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 811 states. [2020-10-12 17:49:15,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 811 to 529. [2020-10-12 17:49:15,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 529 states. [2020-10-12 17:49:15,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 642 transitions. [2020-10-12 17:49:15,855 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 642 transitions. Word has length 127 [2020-10-12 17:49:15,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 17:49:15,855 INFO L479 AbstractCegarLoop]: Abstraction has 529 states and 642 transitions. [2020-10-12 17:49:15,856 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 17:49:15,856 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 642 transitions. [2020-10-12 17:49:15,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-10-12 17:49:15,858 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 17:49:15,858 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] [2020-10-12 17:49:15,858 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 17:49:15,859 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 17:49:15,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 17:49:15,859 INFO L82 PathProgramCache]: Analyzing trace with hash -1017987339, now seen corresponding path program 1 times [2020-10-12 17:49:15,859 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 17:49:15,859 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1796108998] [2020-10-12 17:49:15,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 17:49:15,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:49:15,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:49:16,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:49:16,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-12 17:49:16,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:49:16,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 430 [2020-10-12 17:49:16,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:49:16,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 17:49:16,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 17:49:16,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-12 17:49:16,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:49:16,571 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-12 17:49:16,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 17:49:16,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:49:16,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:49:16,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:49:16,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:49:16,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:49:16,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-12 17:49:16,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:49:16,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:49:16,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:49:16,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 17:49:16,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 17:49:16,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 17:49:16,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:49:16,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:49:16,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:49:16,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 17:49:16,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:49:16,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:49:16,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:49:16,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:49:16,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:49:16,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 17:49:16,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 17:49:16,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-12 17:49:16,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:49:16,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:49:16,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:49:16,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 17:49:16,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:49:16,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:49:16,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:49:16,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:49:16,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:49:16,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 17:49:16,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 17:49:16,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 17:49:16,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:49:16,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:49:16,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:49:16,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:49:16,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:49:16,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 17:49:16,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:49:16,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:49:16,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:49:16,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 17:49:16,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 17:49:16,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 17:49:16,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:49:16,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:49:16,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:49:16,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 17:49:16,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:49:16,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:49:16,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:49:16,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:49:16,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:49:16,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 17:49:16,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 17:49:16,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-12 17:49:16,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:49:16,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:49:16,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:49:16,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:49:16,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:49:16,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 17:49:16,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:49:16,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:49:16,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:49:16,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 17:49:16,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:49:16,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-12 17:49:16,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:49:16,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:49:16,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:49:16,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-12 17:49:16,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:49:16,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 17:49:16,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:49:16,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:49:16,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-12 17:49:16,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-12 17:49:16,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 17:49:16,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 17:49:16,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:49:16,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:49:16,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:49:16,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-12 17:49:16,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:49:16,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 17:49:16,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:49:16,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:49:16,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:49:16,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-12 17:49:16,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 17:49:16,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 17:49:16,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:49:16,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:49:16,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:49:16,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-12 17:49:16,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:49:16,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 17:49:16,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:49:16,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:49:16,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:49:16,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 17:49:16,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 17:49:16,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 17:49:16,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:49:16,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:49:16,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:49:16,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 17:49:16,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:49:16,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 17:49:16,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:49:16,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:49:16,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:49:16,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 17:49:16,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 17:49:16,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 17:49:16,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:49:16,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:49:16,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:49:16,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 17:49:16,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:49:16,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 17:49:16,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:49:16,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:49:16,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:49:16,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-12 17:49:16,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 17:49:16,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-12 17:49:16,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:49:16,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:49:16,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:49:16,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:49:16,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:49:16,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 17:49:16,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:49:16,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:49:16,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:49:16,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 17:49:16,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:49:16,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-12 17:49:16,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:49:16,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:49:16,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:49:16,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:49:16,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:49:16,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:49:16,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:49:16,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:49:16,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 17:49:16,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:49:16,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:49:16,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-12 17:49:16,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:49:16,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:49:16,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:49:16,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:49:16,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:49:16,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:49:16,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:49:16,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:49:16,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 17:49:16,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:49:16,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 17:49:16,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 17:49:16,905 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1796108998] [2020-10-12 17:49:16,905 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 17:49:16,905 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-12 17:49:16,906 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507239991] [2020-10-12 17:49:16,906 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 17:49:16,907 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 17:49:16,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 17:49:16,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-12 17:49:16,907 INFO L87 Difference]: Start difference. First operand 529 states and 642 transitions. Second operand 7 states. [2020-10-12 17:49:17,294 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 17:49:17,801 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 17:49:21,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 17:49:21,069 INFO L93 Difference]: Finished difference Result 1869 states and 2534 transitions. [2020-10-12 17:49:21,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-12 17:49:21,069 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 89 [2020-10-12 17:49:21,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 17:49:21,080 INFO L225 Difference]: With dead ends: 1869 [2020-10-12 17:49:21,080 INFO L226 Difference]: Without dead ends: 1355 [2020-10-12 17:49:21,083 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 35 SyntacticMatches, 4 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-10-12 17:49:21,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1355 states. [2020-10-12 17:49:21,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1355 to 1097. [2020-10-12 17:49:21,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1097 states. [2020-10-12 17:49:21,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1097 states to 1097 states and 1348 transitions. [2020-10-12 17:49:21,345 INFO L78 Accepts]: Start accepts. Automaton has 1097 states and 1348 transitions. Word has length 89 [2020-10-12 17:49:21,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 17:49:21,345 INFO L479 AbstractCegarLoop]: Abstraction has 1097 states and 1348 transitions. [2020-10-12 17:49:21,345 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 17:49:21,346 INFO L276 IsEmpty]: Start isEmpty. Operand 1097 states and 1348 transitions. [2020-10-12 17:49:21,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-12 17:49:21,350 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 17:49:21,350 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] [2020-10-12 17:49:21,350 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 17:49:21,350 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 17:49:21,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 17:49:21,351 INFO L82 PathProgramCache]: Analyzing trace with hash 1174397627, now seen corresponding path program 1 times [2020-10-12 17:49:21,351 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 17:49:21,351 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [535529157] [2020-10-12 17:49:21,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 17:49:21,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-12 17:49:21,385 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-12 17:49:21,386 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-12 17:49:21,390 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 17:49:21,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 05:49:21 BoogieIcfgContainer [2020-10-12 17:49:21,428 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-12 17:49:21,431 INFO L168 Benchmark]: Toolchain (without parser) took 39016.63 ms. Allocated memory was 140.5 MB in the beginning and 772.3 MB in the end (delta: 631.8 MB). Free memory was 103.0 MB in the beginning and 334.5 MB in the end (delta: -231.5 MB). Peak memory consumption was 400.3 MB. Max. memory is 7.1 GB. [2020-10-12 17:49:21,434 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-12 17:49:21,440 INFO L168 Benchmark]: CACSL2BoogieTranslator took 689.77 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 102.8 MB in the beginning and 171.6 MB in the end (delta: -68.9 MB). Peak memory consumption was 27.2 MB. Max. memory is 7.1 GB. [2020-10-12 17:49:21,440 INFO L168 Benchmark]: Boogie Preprocessor took 92.23 ms. Allocated memory is still 203.9 MB. Free memory was 171.6 MB in the beginning and 167.5 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-10-12 17:49:21,441 INFO L168 Benchmark]: RCFGBuilder took 1298.48 ms. Allocated memory was 203.9 MB in the beginning and 239.1 MB in the end (delta: 35.1 MB). Free memory was 167.5 MB in the beginning and 193.7 MB in the end (delta: -26.2 MB). Peak memory consumption was 81.6 MB. Max. memory is 7.1 GB. [2020-10-12 17:49:21,442 INFO L168 Benchmark]: TraceAbstraction took 36931.45 ms. Allocated memory was 239.1 MB in the beginning and 772.3 MB in the end (delta: 533.2 MB). Free memory was 193.7 MB in the beginning and 334.5 MB in the end (delta: -140.8 MB). Peak memory consumption was 392.4 MB. Max. memory is 7.1 GB. [2020-10-12 17:49:21,454 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 689.77 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 102.8 MB in the beginning and 171.6 MB in the end (delta: -68.9 MB). Peak memory consumption was 27.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 92.23 ms. Allocated memory is still 203.9 MB. Free memory was 171.6 MB in the beginning and 167.5 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1298.48 ms. Allocated memory was 203.9 MB in the beginning and 239.1 MB in the end (delta: 35.1 MB). Free memory was 167.5 MB in the beginning and 193.7 MB in the end (delta: -26.2 MB). Peak memory consumption was 81.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 36931.45 ms. Allocated memory was 239.1 MB in the beginning and 772.3 MB in the end (delta: 533.2 MB). Free memory was 193.7 MB in the beginning and 334.5 MB in the end (delta: -140.8 MB). Peak memory consumption was 392.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 806]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L490] int pumpRunning = 0; [L491] int systemActive = 1; [L811] int cleanupTimeShifts = 4; [L908] int waterLevel = 1; [L909] int methaneLevelCritical = 0; [L884] int retValue_acc ; [L885] int tmp ; [L889] FCALL select_helpers() [L890] FCALL select_features() [L891] CALL, EXPR valid_product() [L766] int retValue_acc ; [L769] retValue_acc = 1 [L770] return (retValue_acc); [L891] RET, EXPR valid_product() [L891] tmp = valid_product() [L893] COND TRUE \read(tmp) [L895] FCALL setup() [L896] CALL runTest() [L878] CALL test() [L413] int splverifierCounter ; [L414] int tmp ; [L415] int tmp___0 ; [L416] int tmp___1 ; [L417] int tmp___2 ; [L420] splverifierCounter = 0 [L422] COND TRUE 1 [L424] COND TRUE splverifierCounter < 4 [L430] tmp = __VERIFIER_nondet_int() [L432] COND TRUE \read(tmp) [L434] CALL waterRise() [L926] COND TRUE waterLevel < 2 [L927] waterLevel = waterLevel + 1 [L434] RET waterRise() [L440] tmp___0 = __VERIFIER_nondet_int() [L442] COND TRUE \read(tmp___0) [L444] CALL changeMethaneLevel() [L938] COND FALSE !(\read(methaneLevelCritical)) [L941] methaneLevelCritical = 1 [L444] RET changeMethaneLevel() [L450] tmp___2 = __VERIFIER_nondet_int() [L452] COND FALSE !(\read(tmp___2)) [L458] tmp___1 = __VERIFIER_nondet_int() [L460] COND FALSE !(\read(tmp___1)) [L469] CALL timeShift() [L498] COND FALSE !(\read(pumpRunning)) [L505] COND TRUE \read(systemActive) [L507] CALL processEnvironment() [L579] int tmp ; [L582] COND FALSE !(\read(pumpRunning)) [L597] CALL processEnvironment__wrappee__lowWaterSensor() [L553] int tmp ; [L556] COND FALSE !(\read(pumpRunning)) [L571] CALL processEnvironment__wrappee__highWaterSensor() [L527] int tmp ; [L530] COND TRUE ! pumpRunning [L532] CALL, EXPR isHighWaterLevel() [L676] int retValue_acc ; [L677] int tmp ; [L678] int tmp___0 ; [L682] CALL, EXPR isHighWaterSensorDry() [L988] int retValue_acc ; [L991] COND FALSE !(waterLevel < 2) [L995] retValue_acc = 0 [L996] return (retValue_acc); [L682] RET, EXPR isHighWaterSensorDry() [L682] tmp = isHighWaterSensorDry() [L684] COND FALSE !(\read(tmp)) [L687] tmp___0 = 1 [L689] retValue_acc = tmp___0 [L690] return (retValue_acc); [L532] RET, EXPR isHighWaterLevel() [L532] tmp = isHighWaterLevel() [L534] COND TRUE \read(tmp) [L536] CALL activatePump() [L607] pumpRunning = 1 [L536] RET activatePump() [L571] RET processEnvironment__wrappee__highWaterSensor() [L597] RET processEnvironment__wrappee__lowWaterSensor() [L507] RET processEnvironment() [L513] CALL __utac_acc__Specification1_spec__1() [L777] int tmp ; [L778] int tmp___0 ; [L782] CALL, EXPR isMethaneLevelCritical() [L947] int retValue_acc ; [L950] retValue_acc = methaneLevelCritical [L951] return (retValue_acc); [L782] RET, EXPR isMethaneLevelCritical() [L782] tmp = isMethaneLevelCritical() [L784] COND TRUE \read(tmp) [L786] CALL, EXPR isPumpRunning() [L631] int retValue_acc ; [L634] retValue_acc = pumpRunning [L635] return (retValue_acc); [L786] RET, EXPR isPumpRunning() [L786] tmp___0 = isPumpRunning() [L788] COND TRUE \read(tmp___0) [L790] CALL __automaton_fail() [L806] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 43 procedures, 255 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 36.8s, OverallIterations: 5, TraceHistogramMax: 3, AutomataDifference: 20.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 707 SDtfs, 1996 SDslu, 1168 SDs, 0 SdLazy, 5042 SolverSat, 1486 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 212 GetRequests, 133 SyntacticMatches, 5 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 287 ImplicationChecksByTransitivity, 7.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1097occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 4 MinimizatonAttempts, 667 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 15.2s InterpolantComputationTime, 440 NumberOfCodeBlocks, 440 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 343 ConstructedInterpolants, 0 QuantifiedInterpolants, 128212 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 33/36 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...