/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.5 --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_product21.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 14:11:59,928 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 14:11:59,932 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 14:11:59,957 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 14:11:59,957 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 14:11:59,958 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 14:11:59,960 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 14:11:59,962 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 14:11:59,963 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 14:11:59,964 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 14:11:59,966 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 14:11:59,967 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 14:11:59,967 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 14:11:59,968 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 14:11:59,970 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 14:11:59,971 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 14:11:59,972 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 14:11:59,973 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 14:11:59,975 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 14:11:59,977 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 14:11:59,978 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 14:11:59,979 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 14:11:59,980 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 14:11:59,981 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 14:11:59,984 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 14:11:59,984 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 14:11:59,984 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 14:11:59,986 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 14:11:59,986 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 14:11:59,987 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 14:11:59,987 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 14:11:59,988 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 14:11:59,989 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 14:11:59,990 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 14:11:59,991 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 14:11:59,991 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 14:11:59,992 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 14:11:59,992 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 14:11:59,992 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 14:11:59,993 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 14:11:59,994 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 14:11:59,995 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 14:12:00,021 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 14:12:00,021 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 14:12:00,022 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 14:12:00,022 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 14:12:00,023 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 14:12:00,023 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 14:12:00,023 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 14:12:00,023 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 14:12:00,024 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 14:12:00,024 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 14:12:00,024 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 14:12:00,024 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 14:12:00,024 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 14:12:00,024 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 14:12:00,025 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 14:12:00,025 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 14:12:00,025 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 14:12:00,025 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 14:12:00,025 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 14:12:00,026 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 14:12:00,026 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 14:12:00,026 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 14:12:00,026 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 14:12:00,027 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 14:12:00,027 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 14:12:00,027 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 14:12:00,027 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 14:12:00,027 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 14:12:00,028 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 14:12:00,028 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; [2020-09-25 14:12:00,520 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 14:12:00,542 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 14:12:00,548 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 14:12:00,550 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 14:12:00,552 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 14:12:00,553 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product21.cil.c [2020-09-25 14:12:00,625 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c6ba78e08/ad0558d0fb554ef2ad11f7ba3001c997/FLAGbb4dd8c68 [2020-09-25 14:12:01,272 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 14:12:01,273 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product21.cil.c [2020-09-25 14:12:01,287 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c6ba78e08/ad0558d0fb554ef2ad11f7ba3001c997/FLAGbb4dd8c68 [2020-09-25 14:12:01,476 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c6ba78e08/ad0558d0fb554ef2ad11f7ba3001c997 [2020-09-25 14:12:01,489 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 14:12:01,495 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 14:12:01,496 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 14:12:01,497 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 14:12:01,501 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 14:12:01,502 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:12:01" (1/1) ... [2020-09-25 14:12:01,506 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a8fda26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:12:01, skipping insertion in model container [2020-09-25 14:12:01,507 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:12:01" (1/1) ... [2020-09-25 14:12:01,516 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 14:12:01,569 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 14:12:02,025 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:12:02,042 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 14:12:02,139 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:12:02,203 INFO L208 MainTranslator]: Completed translation [2020-09-25 14:12:02,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:12:02 WrapperNode [2020-09-25 14:12:02,204 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 14:12:02,205 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 14:12:02,205 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 14:12:02,205 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 14:12:02,221 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:12:02" (1/1) ... [2020-09-25 14:12:02,221 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:12:02" (1/1) ... [2020-09-25 14:12:02,243 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:12:02" (1/1) ... [2020-09-25 14:12:02,244 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:12:02" (1/1) ... [2020-09-25 14:12:02,275 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:12:02" (1/1) ... [2020-09-25 14:12:02,287 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:12:02" (1/1) ... [2020-09-25 14:12:02,293 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:12:02" (1/1) ... [2020-09-25 14:12:02,301 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 14:12:02,301 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 14:12:02,301 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 14:12:02,302 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 14:12:02,309 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:12:02" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 14:12:02,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 14:12:02,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 14:12:02,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 14:12:02,415 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 14:12:02,415 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 14:12:02,416 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 14:12:02,416 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 14:12:02,417 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 14:12:02,417 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 14:12:02,418 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 14:12:02,418 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 14:12:02,418 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 14:12:02,418 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 14:12:02,418 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 14:12:02,419 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 14:12:02,420 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 14:12:02,420 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 14:12:02,420 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 14:12:02,420 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 14:12:02,420 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 14:12:02,421 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 14:12:02,421 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 14:12:02,421 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 14:12:02,421 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 14:12:02,422 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 14:12:02,422 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 14:12:02,423 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 14:12:02,423 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 14:12:02,423 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 14:12:02,423 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-25 14:12:02,423 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 14:12:02,424 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 14:12:02,424 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 14:12:02,424 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 14:12:02,424 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 14:12:02,424 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 14:12:02,424 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 14:12:02,425 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 14:12:02,425 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 14:12:02,427 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 14:12:02,427 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 14:12:02,427 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 14:12:02,427 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 14:12:02,427 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 14:12:02,428 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 14:12:02,429 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 14:12:02,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 14:12:02,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 14:12:02,430 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 14:12:02,430 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 14:12:02,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 14:12:02,430 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 14:12:02,430 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 14:12:02,431 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 14:12:02,431 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 14:12:02,431 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 14:12:02,431 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 14:12:02,431 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 14:12:02,432 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 14:12:02,432 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 14:12:02,432 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 14:12:02,432 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 14:12:02,432 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 14:12:02,433 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 14:12:02,433 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 14:12:02,433 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 14:12:02,433 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 14:12:02,433 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 14:12:02,433 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 14:12:02,434 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 14:12:02,434 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 14:12:02,436 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 14:12:02,436 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 14:12:02,436 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 14:12:02,437 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 14:12:02,437 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 14:12:02,437 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 14:12:02,437 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 14:12:02,437 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 14:12:02,437 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 14:12:02,437 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 14:12:02,438 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 14:12:02,438 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 14:12:02,438 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 14:12:02,438 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 14:12:02,438 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-25 14:12:02,438 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 14:12:02,439 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 14:12:02,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 14:12:02,439 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 14:12:03,610 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 14:12:03,610 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 14:12:03,618 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:12:03 BoogieIcfgContainer [2020-09-25 14:12:03,618 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 14:12:03,619 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 14:12:03,619 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 14:12:03,623 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 14:12:03,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:12:01" (1/3) ... [2020-09-25 14:12:03,624 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d66bef5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:12:03, skipping insertion in model container [2020-09-25 14:12:03,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:12:02" (2/3) ... [2020-09-25 14:12:03,625 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d66bef5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:12:03, skipping insertion in model container [2020-09-25 14:12:03,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:12:03" (3/3) ... [2020-09-25 14:12:03,628 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product21.cil.c [2020-09-25 14:12:03,639 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 14:12:03,651 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 14:12:03,673 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 14:12:03,706 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 14:12:03,706 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 14:12:03,706 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 14:12:03,707 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 14:12:03,707 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 14:12:03,707 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 14:12:03,707 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 14:12:03,707 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 14:12:03,737 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states. [2020-09-25 14:12:03,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 14:12:03,757 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:12:03,758 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:12:03,759 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:12:03,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:12:03,767 INFO L82 PathProgramCache]: Analyzing trace with hash 857877729, now seen corresponding path program 1 times [2020-09-25 14:12:03,778 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:12:03,778 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1645107301] [2020-09-25 14:12:03,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:12:04,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:12:04,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:04,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:04,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:06,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:06,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:09,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:12:09,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 14:12:09,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 14:12:09,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-09-25 14:12:09,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:12:09,177 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:12:09,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:12:09,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 14:12:09,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 14:12:09,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-09-25 14:12:09,690 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:12:09,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:12:09,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:12:09,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:10,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:12:10,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:12:10,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:12:10,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 324 [2020-09-25 14:12:10,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:12:10,088 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:12:10,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:12:10,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:12:10,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 14:12:10,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:12:10,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:12:10,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:12:10,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:10,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:12:10,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:12:10,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:12:10,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 14:12:10,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:12:10,204 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:12:10,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:12:10,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:12:10,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:12:10,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:12:10,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:12:10,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:12:10,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:10,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:12:10,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:12:10,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:12:10,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:12:10,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:12:10,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:12:10,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:12:10,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:12:10,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:12:10,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:12:10,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:12:10,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:12:10,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:10,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:12:10,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:12:10,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:12:10,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 14:12:10,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:12:10,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:12:10,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:12:10,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:12:10,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:12:10,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:12:10,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:12:10,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:12:10,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:10,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:12:10,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:12:10,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:12:10,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:12:10,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:12:10,238 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:12:10,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:12:10,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:12:10,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:12:10,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:12:10,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 14:12:10,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:12:10,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:10,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:12:10,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:12:10,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:12:10,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:12:10,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:12:10,245 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:12:10,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:12:10,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:12:10,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:12:10,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:12:10,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 14:12:10,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:12:10,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:10,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:12:10,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:12:10,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:12:10,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:12:10,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:12:10,253 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:12:10,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:12:10,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:12:10,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:12:10,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:12:10,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:12:10,282 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1645107301] [2020-09-25 14:12:10,284 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:12:10,284 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 14:12:10,285 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958198] [2020-09-25 14:12:10,292 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 14:12:10,293 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:12:10,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 14:12:10,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 14:12:10,314 INFO L87 Difference]: Start difference. First operand 295 states. Second operand 4 states. [2020-09-25 14:12:10,959 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:12:12,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:12:12,281 INFO L93 Difference]: Finished difference Result 455 states and 546 transitions. [2020-09-25 14:12:12,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 14:12:12,283 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 142 [2020-09-25 14:12:12,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:12:12,304 INFO L225 Difference]: With dead ends: 455 [2020-09-25 14:12:12,304 INFO L226 Difference]: Without dead ends: 285 [2020-09-25 14:12:12,310 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 14:12:12,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2020-09-25 14:12:12,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 244. [2020-09-25 14:12:12,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2020-09-25 14:12:12,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 265 transitions. [2020-09-25 14:12:12,437 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 265 transitions. Word has length 142 [2020-09-25 14:12:12,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:12:12,438 INFO L479 AbstractCegarLoop]: Abstraction has 244 states and 265 transitions. [2020-09-25 14:12:12,439 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 14:12:12,439 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 265 transitions. [2020-09-25 14:12:12,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-09-25 14:12:12,444 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:12:12,444 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] [2020-09-25 14:12:12,445 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 14:12:12,445 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:12:12,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:12:12,446 INFO L82 PathProgramCache]: Analyzing trace with hash 397427638, now seen corresponding path program 1 times [2020-09-25 14:12:12,446 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:12:12,446 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1638376346] [2020-09-25 14:12:12,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:12:12,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:12:12,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:13,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:13,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:14,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:14,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:17,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:12:17,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 14:12:17,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 14:12:17,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 14:12:17,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:12:17,511 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:12:17,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 14:12:17,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 14:12:17,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-09-25 14:12:17,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:12:17,861 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:12:17,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:12:17,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:12:17,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:18,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:12:18,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:12:18,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:12:18,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 217 [2020-09-25 14:12:18,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:12:18,122 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:12:18,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:12:18,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:12:18,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 14:12:18,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:12:18,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:12:18,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:12:18,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:18,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:12:18,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:12:18,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:12:18,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:12:18,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:12:18,172 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:12:18,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:12:18,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:12:18,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:12:18,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:12:18,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:12:18,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:12:18,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:18,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:12:18,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:12:18,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:12:18,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:12:18,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:12:18,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:12:18,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:12:18,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:12:18,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:12:18,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:12:18,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:12:18,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:12:18,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:18,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:12:18,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:12:18,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:12:18,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 14:12:18,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:12:18,196 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:12:18,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:12:18,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:12:18,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:12:18,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:12:18,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:12:18,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:12:18,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:18,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:12:18,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:12:18,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:12:18,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:12:18,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:12:18,203 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:12:18,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:12:18,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:12:18,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:12:18,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:12:18,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 14:12:18,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:12:18,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:18,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:12:18,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 14:12:18,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:12:18,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:12:18,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:12:18,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:12:18,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:12:18,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:12:18,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 14:12:18,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:12:18,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:12:18,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:12:18,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:18,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:12:18,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 14:12:18,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:12:18,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:12:18,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:12:18,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:12:18,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:12:18,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:12:18,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:12:18,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:12:18,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:12:18,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:12:18,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:18,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:12:18,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:12:18,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:12:18,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:12:18,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:12:18,246 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:12:18,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:12:18,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:12:18,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:12:18,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:12:18,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-09-25 14:12:18,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:12:18,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:18,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:12:18,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:12:18,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:12:18,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 14:12:18,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:12:18,259 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:12:18,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:12:18,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:12:18,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:12:18,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:12:18,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-25 14:12:18,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:12:18,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:18,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:12:18,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:12:18,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:12:18,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:12:18,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:12:18,290 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:12:18,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:12:18,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:12:18,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:12:18,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:12:18,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:12:18,334 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1638376346] [2020-09-25 14:12:18,335 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:12:18,336 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 14:12:18,336 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448162725] [2020-09-25 14:12:18,340 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 14:12:18,340 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:12:18,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 14:12:18,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 14:12:18,341 INFO L87 Difference]: Start difference. First operand 244 states and 265 transitions. Second operand 9 states. [2020-09-25 14:12:18,835 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:12:19,856 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:20,179 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:12:20,914 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:12:21,271 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:22,142 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:22,427 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:12:22,698 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:23,290 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 14:12:24,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:12:24,079 INFO L93 Difference]: Finished difference Result 621 states and 764 transitions. [2020-09-25 14:12:24,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 14:12:24,080 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 165 [2020-09-25 14:12:24,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:12:24,088 INFO L225 Difference]: With dead ends: 621 [2020-09-25 14:12:24,088 INFO L226 Difference]: Without dead ends: 463 [2020-09-25 14:12:24,097 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-25 14:12:24,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2020-09-25 14:12:24,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 353. [2020-09-25 14:12:24,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 353 states. [2020-09-25 14:12:24,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 391 transitions. [2020-09-25 14:12:24,174 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 391 transitions. Word has length 165 [2020-09-25 14:12:24,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:12:24,175 INFO L479 AbstractCegarLoop]: Abstraction has 353 states and 391 transitions. [2020-09-25 14:12:24,175 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 14:12:24,176 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 391 transitions. [2020-09-25 14:12:24,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-09-25 14:12:24,179 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:12:24,179 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:12:24,180 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 14:12:24,180 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:12:24,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:12:24,180 INFO L82 PathProgramCache]: Analyzing trace with hash 6109992, now seen corresponding path program 1 times [2020-09-25 14:12:24,181 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:12:24,181 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [134520130] [2020-09-25 14:12:24,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:12:24,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:12:24,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:24,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:24,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:25,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:28,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:12:28,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-09-25 14:12:28,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 14:12:28,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4567 [2020-09-25 14:12:28,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:12:28,799 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:12:28,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-25 14:12:28,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 14:12:28,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-09-25 14:12:28,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:12:29,176 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:12:29,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:12:29,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:12:29,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:29,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:12:29,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:12:29,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:12:29,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 239 [2020-09-25 14:12:29,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:12:29,473 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:12:29,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:12:29,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:12:29,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 14:12:29,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:12:29,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:12:29,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:12:29,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:29,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:12:29,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:12:29,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:12:29,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:12:29,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:12:29,542 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:12:29,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:12:29,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:12:29,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:12:29,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:12:29,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:12:29,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:12:29,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:29,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:12:29,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:12:29,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:12:29,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:12:29,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:12:29,560 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:12:29,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:12:29,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:12:29,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:12:29,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:12:29,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:12:29,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:12:29,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:29,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:12:29,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:12:29,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:12:29,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 14:12:29,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:12:29,573 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:12:29,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:12:29,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:12:29,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:12:29,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:12:29,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:12:29,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:12:29,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:29,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:12:29,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:12:29,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:12:29,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:12:29,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:12:29,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:12:29,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:12:29,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:12:29,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:12:29,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:12:29,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 14:12:29,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:12:29,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:29,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:12:29,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:12:29,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:12:29,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 14:12:29,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:12:29,618 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:12:29,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:12:29,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:12:29,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 14:12:29,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:12:29,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 14:12:29,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:12:29,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:29,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:29,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:29,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:12:29,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 14:12:29,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 14:12:29,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 14:12:29,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:12:29,663 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:12:29,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:12:29,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 14:12:29,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 14:12:29,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:12:29,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:12:29,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:12:29,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:29,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:29,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:12:29,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 14:12:29,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:12:29,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 14:12:29,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:12:29,764 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:12:29,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:12:29,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 14:12:29,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 14:12:29,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:12:29,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:12:29,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:12:29,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:29,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:12:29,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:12:29,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:12:29,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 14:12:29,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:12:29,791 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:12:29,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:12:29,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:12:29,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:12:29,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:12:29,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 14:12:29,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:12:29,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:29,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:12:29,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:12:29,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:12:29,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 14:12:29,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:12:29,805 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:12:29,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:12:29,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:12:29,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:12:29,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 14:12:29,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-09-25 14:12:29,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:12:29,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:29,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:12:29,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:12:29,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:12:29,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 14:12:29,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:12:29,826 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:12:29,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:12:29,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:12:29,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:12:29,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:12:29,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:12:29,893 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [134520130] [2020-09-25 14:12:29,893 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:12:29,893 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 14:12:29,893 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636294753] [2020-09-25 14:12:29,894 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 14:12:29,895 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:12:29,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 14:12:29,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-09-25 14:12:29,896 INFO L87 Difference]: Start difference. First operand 353 states and 391 transitions. Second operand 11 states. [2020-09-25 14:12:30,406 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:12:31,595 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:31,916 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:12:32,239 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:32,568 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:12:32,867 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:33,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:12:33,160 INFO L93 Difference]: Finished difference Result 543 states and 630 transitions. [2020-09-25 14:12:33,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 14:12:33,161 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 170 [2020-09-25 14:12:33,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:12:33,162 INFO L225 Difference]: With dead ends: 543 [2020-09-25 14:12:33,162 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 14:12:33,166 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=118, Invalid=262, Unknown=0, NotChecked=0, Total=380 [2020-09-25 14:12:33,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 14:12:33,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 14:12:33,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 14:12:33,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 14:12:33,167 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 170 [2020-09-25 14:12:33,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:12:33,168 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 14:12:33,168 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 14:12:33,168 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 14:12:33,168 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 14:12:33,168 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 14:12:33,171 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 14:12:33,349 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:33,514 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:33,676 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:33,838 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:34,000 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:34,379 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 189 [2020-09-25 14:12:34,840 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:34,998 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:35,154 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:35,309 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:35,463 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:35,834 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 189 [2020-09-25 14:12:36,569 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 189 [2020-09-25 14:12:36,936 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 189 [2020-09-25 14:12:37,202 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 190 [2020-09-25 14:12:37,475 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 190 [2020-09-25 14:12:37,742 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 190 [2020-09-25 14:12:38,021 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 9 [2020-09-25 14:12:38,160 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:12:38,313 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:38,461 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:38,609 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:38,759 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:38,908 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:39,056 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:39,206 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:39,361 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:39,514 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:39,668 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:39,823 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:39,975 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:40,128 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:40,276 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:40,430 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:40,583 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:40,732 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:40,885 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:41,038 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:41,192 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:41,341 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:41,490 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:41,638 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:41,788 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:41,938 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:42,091 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:42,239 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:42,386 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:42,535 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:42,903 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 189 [2020-09-25 14:12:43,333 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:43,482 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:43,637 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:43,800 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:44,049 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 9 [2020-09-25 14:12:44,300 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 9 [2020-09-25 14:12:44,557 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 188 [2020-09-25 14:12:45,171 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 188 [2020-09-25 14:12:45,424 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 188 [2020-09-25 14:12:45,756 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 14:12:46,089 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 14:12:46,419 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 14:12:46,587 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:46,827 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 13 [2020-09-25 14:12:46,979 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:47,132 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:47,286 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:47,440 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:47,590 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:47,755 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:47,903 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:48,060 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:48,213 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:48,362 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:48,509 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:48,656 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:48,805 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:49,055 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 9 [2020-09-25 14:12:49,211 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:49,359 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:49,515 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:49,908 WARN L193 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 11 [2020-09-25 14:12:50,266 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 11 [2020-09-25 14:12:50,512 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 20 [2020-09-25 14:12:50,740 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 15 [2020-09-25 14:12:50,965 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 1 [2020-09-25 14:12:51,393 WARN L193 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 11 [2020-09-25 14:12:51,810 WARN L193 SmtUtils]: Spent 412.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 15 [2020-09-25 14:12:52,097 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:12:52,316 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 20 [2020-09-25 14:12:52,937 WARN L193 SmtUtils]: Spent 616.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 20 [2020-09-25 14:12:53,169 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 20 [2020-09-25 14:12:53,583 WARN L193 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 12 [2020-09-25 14:12:54,007 WARN L193 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 11 [2020-09-25 14:12:54,464 WARN L193 SmtUtils]: Spent 453.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 20 [2020-09-25 14:12:54,704 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 20 [2020-09-25 14:12:54,940 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 15 [2020-09-25 14:12:55,344 WARN L193 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 12