/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product37.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 20:07:21,146 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 20:07:21,151 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 20:07:21,199 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 20:07:21,200 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 20:07:21,210 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 20:07:21,213 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 20:07:21,217 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 20:07:21,220 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 20:07:21,224 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 20:07:21,225 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 20:07:21,226 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 20:07:21,226 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 20:07:21,229 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 20:07:21,232 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 20:07:21,234 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 20:07:21,236 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 20:07:21,237 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 20:07:21,239 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 20:07:21,241 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 20:07:21,246 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 20:07:21,247 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 20:07:21,248 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 20:07:21,249 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 20:07:21,251 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 20:07:21,251 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 20:07:21,251 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 20:07:21,252 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 20:07:21,253 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 20:07:21,254 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 20:07:21,254 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 20:07:21,255 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 20:07:21,256 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 20:07:21,257 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 20:07:21,258 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 20:07:21,258 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 20:07:21,259 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 20:07:21,259 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 20:07:21,259 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 20:07:21,260 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 20:07:21,261 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 20:07:21,262 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 20:07:21,286 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 20:07:21,286 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 20:07:21,290 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 20:07:21,290 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 20:07:21,290 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 20:07:21,291 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 20:07:21,291 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 20:07:21,291 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 20:07:21,291 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 20:07:21,292 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 20:07:21,292 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 20:07:21,292 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 20:07:21,292 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 20:07:21,292 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 20:07:21,293 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 20:07:21,293 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 20:07:21,293 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 20:07:21,293 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 20:07:21,293 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 20:07:21,294 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 20:07:21,294 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 20:07:21,294 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 20:07:21,294 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 20:07:21,294 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 20:07:21,295 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 20:07:21,295 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 20:07:21,295 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 20:07:21,295 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 20:07:21,295 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 20:07:21,296 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; [2020-09-24 20:07:21,740 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 20:07:21,769 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 20:07:21,773 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 20:07:21,775 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 20:07:21,777 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 20:07:21,778 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product37.cil.c [2020-09-24 20:07:21,861 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b88b9937a/545c7e2710574707b00743ec61b6fc7c/FLAG3f0b32e26 [2020-09-24 20:07:22,510 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 20:07:22,517 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product37.cil.c [2020-09-24 20:07:22,541 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b88b9937a/545c7e2710574707b00743ec61b6fc7c/FLAG3f0b32e26 [2020-09-24 20:07:22,738 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b88b9937a/545c7e2710574707b00743ec61b6fc7c [2020-09-24 20:07:22,751 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 20:07:22,756 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 20:07:22,757 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 20:07:22,758 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 20:07:22,762 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 20:07:22,763 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:07:22" (1/1) ... [2020-09-24 20:07:22,767 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53d96e6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:07:22, skipping insertion in model container [2020-09-24 20:07:22,768 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:07:22" (1/1) ... [2020-09-24 20:07:22,777 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 20:07:22,850 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 20:07:23,358 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:07:23,372 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 20:07:23,447 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:07:23,486 INFO L208 MainTranslator]: Completed translation [2020-09-24 20:07:23,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:07:23 WrapperNode [2020-09-24 20:07:23,487 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 20:07:23,488 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 20:07:23,488 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 20:07:23,488 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 20:07:23,508 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:07:23" (1/1) ... [2020-09-24 20:07:23,508 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:07:23" (1/1) ... [2020-09-24 20:07:23,531 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:07:23" (1/1) ... [2020-09-24 20:07:23,531 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:07:23" (1/1) ... [2020-09-24 20:07:23,565 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:07:23" (1/1) ... [2020-09-24 20:07:23,578 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:07:23" (1/1) ... [2020-09-24 20:07:23,583 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:07:23" (1/1) ... [2020-09-24 20:07:23,592 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 20:07:23,593 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 20:07:23,593 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 20:07:23,593 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 20:07:23,594 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:07:23" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 20:07:23,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 20:07:23,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 20:07:23,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 20:07:23,669 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 20:07:23,669 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 20:07:23,669 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 20:07:23,669 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 20:07:23,669 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 20:07:23,670 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 20:07:23,670 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 20:07:23,670 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 20:07:23,670 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 20:07:23,670 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 20:07:23,670 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 20:07:23,671 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-24 20:07:23,671 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 20:07:23,671 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 20:07:23,671 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 20:07:23,671 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 20:07:23,672 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 20:07:23,672 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 20:07:23,672 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 20:07:23,674 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 20:07:23,674 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 20:07:23,674 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 20:07:23,674 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 20:07:23,674 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 20:07:23,674 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 20:07:23,675 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 20:07:23,675 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 20:07:23,675 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 20:07:23,675 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 20:07:23,675 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 20:07:23,675 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 20:07:23,676 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 20:07:23,676 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 20:07:23,676 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 20:07:23,676 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 20:07:23,676 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 20:07:23,676 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 20:07:23,677 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 20:07:23,677 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 20:07:23,677 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 20:07:23,677 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 20:07:23,677 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 20:07:23,677 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 20:07:23,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 20:07:23,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 20:07:23,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 20:07:23,678 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 20:07:23,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 20:07:23,679 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 20:07:23,679 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 20:07:23,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 20:07:23,679 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 20:07:23,679 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 20:07:23,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 20:07:23,679 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 20:07:23,680 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 20:07:23,680 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 20:07:23,680 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 20:07:23,680 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 20:07:23,680 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 20:07:23,680 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 20:07:23,681 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 20:07:23,681 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 20:07:23,681 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 20:07:23,681 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 20:07:23,681 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 20:07:23,681 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 20:07:23,682 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 20:07:23,682 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 20:07:23,682 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 20:07:23,682 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 20:07:23,682 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-24 20:07:23,682 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 20:07:23,683 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 20:07:23,683 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 20:07:23,683 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 20:07:23,683 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 20:07:23,683 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 20:07:23,683 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 20:07:23,684 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 20:07:23,684 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 20:07:23,684 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 20:07:23,684 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 20:07:23,684 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 20:07:23,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 20:07:23,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 20:07:23,685 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 20:07:24,948 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 20:07:24,949 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 20:07:24,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:07:24 BoogieIcfgContainer [2020-09-24 20:07:24,961 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 20:07:24,965 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 20:07:24,965 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 20:07:24,969 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 20:07:24,969 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 08:07:22" (1/3) ... [2020-09-24 20:07:24,970 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d14db80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:07:24, skipping insertion in model container [2020-09-24 20:07:24,970 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:07:23" (2/3) ... [2020-09-24 20:07:24,971 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d14db80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:07:24, skipping insertion in model container [2020-09-24 20:07:24,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:07:24" (3/3) ... [2020-09-24 20:07:24,976 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product37.cil.c [2020-09-24 20:07:24,989 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 20:07:25,005 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 20:07:25,031 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 20:07:25,084 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 20:07:25,084 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 20:07:25,085 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 20:07:25,085 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 20:07:25,085 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 20:07:25,085 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 20:07:25,085 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 20:07:25,086 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 20:07:25,131 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states. [2020-09-24 20:07:25,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 20:07:25,171 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:07:25,173 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:07:25,174 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:07:25,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:07:25,183 INFO L82 PathProgramCache]: Analyzing trace with hash -382472662, now seen corresponding path program 1 times [2020-09-24 20:07:25,196 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:07:25,197 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [625796760] [2020-09-24 20:07:25,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:07:25,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:25,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:25,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:26,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:27,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:27,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:30,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:30,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 20:07:30,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 20:07:30,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5060 [2020-09-24 20:07:30,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:30,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 20:07:30,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 20:07:30,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-09-24 20:07:30,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-24 20:07:31,212 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 20:07:31,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:07:31,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:31,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:31,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:31,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 20:07:31,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:07:31,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 241 [2020-09-24 20:07:31,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:31,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:07:31,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:07:31,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 20:07:31,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:07:31,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 20:07:31,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:31,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:31,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:31,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:07:31,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:07:31,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 20:07:31,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:31,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:07:31,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:07:31,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:07:31,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:07:31,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 20:07:31,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:31,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:31,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:31,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:07:31,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:07:31,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 20:07:31,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:31,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:07:31,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:07:31,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:07:31,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 20:07:31,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 20:07:31,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:31,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:31,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:31,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:07:31,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:07:31,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 20:07:31,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:31,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:07:31,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:07:31,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:07:31,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:07:31,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 20:07:31,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:31,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:31,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:31,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:07:31,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:07:31,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:07:31,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:31,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:07:31,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:07:31,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:07:31,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:07:31,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 20:07:31,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:31,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:31,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:31,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:07:31,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:07:31,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:07:31,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:31,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:07:31,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:07:31,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:07:31,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:07:31,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 20:07:31,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:31,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:31,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:31,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:07:31,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:07:31,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 20:07:31,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:31,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:07:31,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:07:31,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:07:31,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:07:31,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:07:31,837 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [625796760] [2020-09-24 20:07:31,839 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:07:31,839 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 20:07:31,841 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312629022] [2020-09-24 20:07:31,851 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 20:07:31,851 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:07:31,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 20:07:31,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 20:07:31,875 INFO L87 Difference]: Start difference. First operand 301 states. Second operand 8 states. [2020-09-24 20:07:32,603 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 20:07:33,773 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:07:34,105 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:07:34,487 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:07:34,844 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:07:35,155 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:07:35,942 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 20:07:36,254 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:07:36,628 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:07:37,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:07:37,910 INFO L93 Difference]: Finished difference Result 578 states and 724 transitions. [2020-09-24 20:07:37,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 20:07:37,912 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-24 20:07:37,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:07:37,934 INFO L225 Difference]: With dead ends: 578 [2020-09-24 20:07:37,934 INFO L226 Difference]: Without dead ends: 388 [2020-09-24 20:07:37,948 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2020-09-24 20:07:37,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2020-09-24 20:07:38,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 346. [2020-09-24 20:07:38,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 346 states. [2020-09-24 20:07:38,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 398 transitions. [2020-09-24 20:07:38,118 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 398 transitions. Word has length 142 [2020-09-24 20:07:38,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:07:38,124 INFO L479 AbstractCegarLoop]: Abstraction has 346 states and 398 transitions. [2020-09-24 20:07:38,124 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 20:07:38,124 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 398 transitions. [2020-09-24 20:07:38,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-09-24 20:07:38,134 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:07:38,134 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:07:38,135 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 20:07:38,135 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:07:38,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:07:38,136 INFO L82 PathProgramCache]: Analyzing trace with hash 81638099, now seen corresponding path program 1 times [2020-09-24 20:07:38,136 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:07:38,136 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [600656320] [2020-09-24 20:07:38,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:07:38,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:38,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:38,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:43,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:43,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 229 [2020-09-24 20:07:43,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 20:07:43,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-09-24 20:07:43,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:43,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 20:07:43,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-24 20:07:43,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 131 [2020-09-24 20:07:43,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:07:43,586 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 20:07:43,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:07:43,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:43,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:43,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:43,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 20:07:43,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:07:43,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 245 [2020-09-24 20:07:43,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:43,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:07:43,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:07:43,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 20:07:43,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:07:43,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 20:07:43,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:43,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:43,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:43,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:07:43,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:07:43,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:07:43,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:43,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:07:43,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:07:43,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:07:43,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:07:43,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 20:07:43,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:43,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:43,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:43,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:07:43,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:07:43,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:07:43,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:43,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:07:43,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:07:43,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:07:43,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:07:43,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 20:07:43,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:43,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:43,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:43,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:07:43,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:07:43,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 20:07:43,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:43,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:07:43,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:07:43,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:07:43,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:07:43,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 20:07:43,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:43,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:43,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:43,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:07:43,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:07:43,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:07:43,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:43,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:07:43,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:07:43,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:07:43,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:07:43,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-24 20:07:43,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:43,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:44,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:44,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:44,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 20:07:44,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 20:07:44,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-09-24 20:07:44,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:44,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:07:44,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-24 20:07:44,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 20:07:44,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:07:44,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:07:44,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:44,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:44,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:44,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 20:07:44,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:07:44,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-09-24 20:07:44,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:44,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:07:44,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 20:07:44,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 20:07:44,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:07:44,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:07:44,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:44,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:44,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:44,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 20:07:44,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:07:44,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-24 20:07:44,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:44,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:07:44,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 20:07:44,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 20:07:44,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:07:44,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 20:07:44,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:44,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:44,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:44,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:07:44,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:07:44,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 20:07:44,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:44,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 20:07:44,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:07:44,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:07:44,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:07:44,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 20:07:44,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:44,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:44,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:44,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:07:44,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:07:44,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:07:44,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:44,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:07:44,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 20:07:44,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:07:44,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:07:44,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-09-24 20:07:44,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:44,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:44,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:44,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:07:44,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:07:44,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 20:07:44,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:44,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:07:44,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:07:44,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:07:44,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:07:44,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-09-24 20:07:44,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:44,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:44,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:44,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:07:44,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:07:44,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:07:44,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:44,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:07:44,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:07:44,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:07:44,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:07:44,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:07:44,378 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [600656320] [2020-09-24 20:07:44,379 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:07:44,379 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-24 20:07:44,379 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612557034] [2020-09-24 20:07:44,383 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-24 20:07:44,386 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:07:44,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-24 20:07:44,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2020-09-24 20:07:44,386 INFO L87 Difference]: Start difference. First operand 346 states and 398 transitions. Second operand 13 states. [2020-09-24 20:07:44,943 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 20:07:45,876 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:07:46,212 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 20:07:46,551 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:07:46,951 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:07:47,273 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:07:47,641 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:07:48,004 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:07:48,378 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:07:48,778 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:07:49,142 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:07:49,452 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:07:49,796 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:07:50,309 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:07:50,617 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:07:50,944 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:07:51,363 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:07:51,774 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:07:52,127 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:07:54,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:07:54,119 INFO L93 Difference]: Finished difference Result 951 states and 1283 transitions. [2020-09-24 20:07:54,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-09-24 20:07:54,123 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 190 [2020-09-24 20:07:54,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:07:54,132 INFO L225 Difference]: With dead ends: 951 [2020-09-24 20:07:54,132 INFO L226 Difference]: Without dead ends: 669 [2020-09-24 20:07:54,139 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=184, Invalid=872, Unknown=0, NotChecked=0, Total=1056 [2020-09-24 20:07:54,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 669 states. [2020-09-24 20:07:54,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 669 to 547. [2020-09-24 20:07:54,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 547 states. [2020-09-24 20:07:54,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 635 transitions. [2020-09-24 20:07:54,227 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 635 transitions. Word has length 190 [2020-09-24 20:07:54,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:07:54,228 INFO L479 AbstractCegarLoop]: Abstraction has 547 states and 635 transitions. [2020-09-24 20:07:54,228 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-24 20:07:54,229 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 635 transitions. [2020-09-24 20:07:54,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2020-09-24 20:07:54,233 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:07:54,234 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:07:54,234 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 20:07:54,234 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:07:54,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:07:54,235 INFO L82 PathProgramCache]: Analyzing trace with hash 846361072, now seen corresponding path program 1 times [2020-09-24 20:07:54,235 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:07:54,235 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1358622643] [2020-09-24 20:07:54,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:07:54,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:54,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:54,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:54,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:54,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:54,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:55,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:55,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:59,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:59,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 299 [2020-09-24 20:07:59,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-24 20:07:59,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-09-24 20:07:59,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:59,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:07:59,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 143 [2020-09-24 20:07:59,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-09-24 20:07:59,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:07:59,664 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 20:07:59,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:07:59,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:59,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:59,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:59,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 20:07:59,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:07:59,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-09-24 20:07:59,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:59,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:07:59,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:07:59,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:07:59,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:07:59,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 20:07:59,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:59,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:59,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:59,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:07:59,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:07:59,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:07:59,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:59,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:07:59,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:07:59,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:07:59,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:07:59,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 20:07:59,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:59,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:59,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:59,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:07:59,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:07:59,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 20:07:59,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:59,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:07:59,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:07:59,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:07:59,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:07:59,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 20:07:59,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:59,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:59,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:59,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:07:59,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:07:59,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:07:59,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:59,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:07:59,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:07:59,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:07:59,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:07:59,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 20:07:59,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:59,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:59,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:59,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:07:59,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:07:59,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 20:07:59,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:59,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:07:59,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:07:59,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:07:59,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:07:59,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 20:07:59,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:59,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:59,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:59,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:07:59,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:07:59,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:07:59,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:59,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:07:59,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:07:59,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 20:07:59,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:07:59,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 20:07:59,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:59,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:59,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:59,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:59,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 20:07:59,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 20:07:59,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 20:07:59,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:59,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:07:59,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-24 20:07:59,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-24 20:07:59,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:07:59,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:07:59,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:59,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:59,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:59,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 20:07:59,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:07:59,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 20:07:59,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:59,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:07:59,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:07:59,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 20:07:59,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:07:59,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:07:59,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:59,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:59,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:59,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:07:59,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:07:59,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 20:07:59,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:59,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 20:07:59,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:07:59,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 20:07:59,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:07:59,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-24 20:08:00,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:00,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:00,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:00,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 20:08:00,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:00,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 20:08:00,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:00,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:08:00,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-24 20:08:00,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-24 20:08:00,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:00,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:08:00,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:00,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:00,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:00,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 20:08:00,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:00,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 20:08:00,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:00,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:08:00,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:00,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 20:08:00,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:00,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:08:00,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:00,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:00,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:00,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:08:00,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:00,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 20:08:00,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:00,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 20:08:00,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:00,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 20:08:00,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:08:00,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-24 20:08:00,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:00,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:00,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:00,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:00,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 20:08:00,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 20:08:00,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-24 20:08:00,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:00,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:08:00,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-24 20:08:00,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:08:00,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:00,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:08:00,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:00,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:00,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:00,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 20:08:00,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:00,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-24 20:08:00,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:00,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:08:00,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 20:08:00,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:08:00,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:00,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:08:00,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:00,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:00,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:00,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 20:08:00,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:00,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-24 20:08:00,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:00,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:08:00,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:00,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 20:08:00,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:00,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 20:08:00,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:00,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:00,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:00,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:08:00,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:00,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:08:00,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:00,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:08:00,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:00,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:08:00,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:00,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 20:08:00,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:00,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:00,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:00,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:08:00,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:00,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:08:00,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:00,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:08:00,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 20:08:00,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:08:00,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:00,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-09-24 20:08:00,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:00,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:00,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:00,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:08:00,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:00,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:08:00,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:00,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:08:00,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:08:00,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:08:00,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:00,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2020-09-24 20:08:00,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:00,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:00,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:00,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:08:00,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:00,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:08:00,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:00,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:08:00,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:08:00,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:08:00,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:00,562 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 24 proven. 10 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-09-24 20:08:00,562 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1358622643] [2020-09-24 20:08:00,563 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 20:08:00,563 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-09-24 20:08:00,563 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381297879] [2020-09-24 20:08:00,564 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-09-24 20:08:00,564 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:08:00,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-09-24 20:08:00,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=335, Unknown=0, NotChecked=0, Total=380 [2020-09-24 20:08:00,566 INFO L87 Difference]: Start difference. First operand 547 states and 635 transitions. Second operand 20 states. [2020-09-24 20:08:01,127 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 20:08:02,303 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 20:08:02,760 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:08:03,109 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:08:03,528 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:08:03,895 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:08:04,223 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:08:04,551 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:08:04,871 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:08:05,256 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:08:05,956 WARN L193 SmtUtils]: Spent 558.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-24 20:08:06,602 WARN L193 SmtUtils]: Spent 579.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 188 [2020-09-24 20:08:07,157 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:08:07,482 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:08:07,853 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 20:08:08,253 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:08:08,596 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:08:08,953 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:08:09,294 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:08:09,662 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:08:09,992 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:08:10,383 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:08:10,843 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:08:11,204 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 189