/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=0.3 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product52.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 12:07:50,418 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 12:07:50,423 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 12:07:50,470 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 12:07:50,471 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 12:07:50,483 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 12:07:50,485 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 12:07:50,489 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 12:07:50,492 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 12:07:50,496 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 12:07:50,497 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 12:07:50,498 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 12:07:50,499 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 12:07:50,502 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 12:07:50,506 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 12:07:50,509 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 12:07:50,511 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 12:07:50,512 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 12:07:50,514 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 12:07:50,522 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 12:07:50,525 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 12:07:50,526 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 12:07:50,527 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 12:07:50,528 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 12:07:50,532 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 12:07:50,533 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 12:07:50,533 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 12:07:50,536 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 12:07:50,537 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 12:07:50,538 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 12:07:50,538 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 12:07:50,539 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 12:07:50,540 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 12:07:50,541 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 12:07:50,542 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 12:07:50,543 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 12:07:50,544 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 12:07:50,544 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 12:07:50,544 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 12:07:50,545 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 12:07:50,548 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 12:07:50,549 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 12:07:50,600 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 12:07:50,601 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 12:07:50,602 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 12:07:50,603 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 12:07:50,603 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 12:07:50,603 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 12:07:50,604 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 12:07:50,604 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 12:07:50,604 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 12:07:50,604 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 12:07:50,605 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 12:07:50,606 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 12:07:50,606 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 12:07:50,606 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 12:07:50,607 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 12:07:50,607 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 12:07:50,607 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 12:07:50,607 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 12:07:50,608 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 12:07:50,608 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 12:07:50,608 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 12:07:50,608 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 12:07:50,608 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 12:07:50,609 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 12:07:50,609 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 12:07:50,609 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 12:07:50,609 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 12:07:50,610 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 12:07:50,610 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 12:07:50,610 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=0.3;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=0.3;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=0.3;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=0.3;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=0.3;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=0.3;log-additional-information=true; [2020-09-25 12:07:51,101 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 12:07:51,125 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 12:07:51,132 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 12:07:51,136 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 12:07:51,137 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 12:07:51,138 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product52.cil.c [2020-09-25 12:07:51,223 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/49bafe529/c0764c24701b401eb3d7321b31c5c5f0/FLAG0c9701b84 [2020-09-25 12:07:51,826 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 12:07:51,827 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product52.cil.c [2020-09-25 12:07:51,843 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/49bafe529/c0764c24701b401eb3d7321b31c5c5f0/FLAG0c9701b84 [2020-09-25 12:07:52,096 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/49bafe529/c0764c24701b401eb3d7321b31c5c5f0 [2020-09-25 12:07:52,109 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 12:07:52,116 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 12:07:52,117 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 12:07:52,117 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 12:07:52,122 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 12:07:52,123 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:07:52" (1/1) ... [2020-09-25 12:07:52,128 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bbef4a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:07:52, skipping insertion in model container [2020-09-25 12:07:52,128 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:07:52" (1/1) ... [2020-09-25 12:07:52,138 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 12:07:52,217 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 12:07:52,614 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 12:07:52,741 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 12:07:52,835 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 12:07:52,876 INFO L208 MainTranslator]: Completed translation [2020-09-25 12:07:52,876 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:07:52 WrapperNode [2020-09-25 12:07:52,876 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 12:07:52,877 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 12:07:52,878 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 12:07:52,878 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 12:07:52,896 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:07:52" (1/1) ... [2020-09-25 12:07:52,896 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:07:52" (1/1) ... [2020-09-25 12:07:52,919 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:07:52" (1/1) ... [2020-09-25 12:07:52,919 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:07:52" (1/1) ... [2020-09-25 12:07:52,953 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:07:52" (1/1) ... [2020-09-25 12:07:52,976 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:07:52" (1/1) ... [2020-09-25 12:07:52,985 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:07:52" (1/1) ... [2020-09-25 12:07:52,996 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 12:07:52,997 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 12:07:52,997 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 12:07:52,997 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 12:07:53,001 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:07:52" (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 12:07:53,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 12:07:53,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 12:07:53,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 12:07:53,110 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 12:07:53,110 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 12:07:53,110 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 12:07:53,110 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 12:07:53,110 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 12:07:53,111 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 12:07:53,111 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 12:07:53,111 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 12:07:53,111 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 12:07:53,111 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 12:07:53,112 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 12:07:53,112 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 12:07:53,112 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 12:07:53,112 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 12:07:53,113 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 12:07:53,113 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 12:07:53,113 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 12:07:53,113 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 12:07:53,113 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 12:07:53,114 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 12:07:53,114 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 12:07:53,114 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 12:07:53,114 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 12:07:53,114 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 12:07:53,115 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 12:07:53,115 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 12:07:53,115 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 12:07:53,115 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 12:07:53,115 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 12:07:53,115 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 12:07:53,115 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 12:07:53,116 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 12:07:53,116 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 12:07:53,116 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 12:07:53,116 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 12:07:53,116 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 12:07:53,116 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 12:07:53,117 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 12:07:53,117 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-25 12:07:53,117 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 12:07:53,117 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 12:07:53,117 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 12:07:53,118 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 12:07:53,118 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 12:07:53,118 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 12:07:53,118 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 12:07:53,118 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 12:07:53,118 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 12:07:53,119 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 12:07:53,119 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 12:07:53,119 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 12:07:53,119 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 12:07:53,119 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 12:07:53,119 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 12:07:53,120 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 12:07:53,120 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 12:07:53,120 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 12:07:53,120 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 12:07:53,120 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-25 12:07:53,120 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 12:07:53,121 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 12:07:53,121 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 12:07:53,121 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 12:07:53,121 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 12:07:53,121 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 12:07:53,121 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 12:07:53,121 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 12:07:53,122 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 12:07:53,122 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 12:07:53,122 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 12:07:53,122 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 12:07:53,122 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 12:07:53,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 12:07:53,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 12:07:53,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 12:07:53,123 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 12:07:53,123 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 12:07:53,123 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 12:07:53,123 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 12:07:53,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 12:07:53,124 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 12:07:53,124 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 12:07:53,124 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 12:07:53,124 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 12:07:53,124 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 12:07:53,125 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 12:07:53,125 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 12:07:53,125 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 12:07:53,125 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 12:07:53,125 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 12:07:53,125 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 12:07:53,125 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 12:07:53,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 12:07:53,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 12:07:53,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 12:07:54,248 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 12:07:54,248 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 12:07:54,256 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:07:54 BoogieIcfgContainer [2020-09-25 12:07:54,256 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 12:07:54,258 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 12:07:54,258 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 12:07:54,262 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 12:07:54,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:07:52" (1/3) ... [2020-09-25 12:07:54,263 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b11dc78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:07:54, skipping insertion in model container [2020-09-25 12:07:54,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:07:52" (2/3) ... [2020-09-25 12:07:54,264 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b11dc78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:07:54, skipping insertion in model container [2020-09-25 12:07:54,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:07:54" (3/3) ... [2020-09-25 12:07:54,267 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product52.cil.c [2020-09-25 12:07:54,279 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 12:07:54,292 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 12:07:54,314 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 12:07:54,352 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 12:07:54,352 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 12:07:54,353 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 12:07:54,353 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 12:07:54,353 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 12:07:54,353 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 12:07:54,353 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 12:07:54,353 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 12:07:54,381 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states. [2020-09-25 12:07:54,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 12:07:54,400 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:07:54,401 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 12:07:54,402 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:07:54,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:07:54,410 INFO L82 PathProgramCache]: Analyzing trace with hash -1964738656, now seen corresponding path program 1 times [2020-09-25 12:07:54,419 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:07:54,420 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [330303243] [2020-09-25 12:07:54,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:07:54,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:07:54,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:55,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:56,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:57,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:59,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:07:59,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 12:07:59,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 12:07:59,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-09-25 12:07:59,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:07:59,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:07:59,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 12:07:59,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 12:07:59,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-25 12:07:59,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 12:08:00,193 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 12:08:00,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:08:00,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:00,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:00,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:00,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 12:08:00,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:00,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 305 [2020-09-25 12:08:00,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:00,545 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:00,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:08:00,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:00,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 12:08:00,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:00,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 12:08:00,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:00,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:00,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:00,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:08:00,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:00,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:08:00,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:00,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:00,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:08:00,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:00,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:08:00,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:00,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 12:08:00,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:00,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:00,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:00,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:08:00,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:00,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:08:00,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:00,630 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:00,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:08:00,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:00,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:08:00,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:00,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 12:08:00,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:00,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:00,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:00,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:08:00,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:00,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 12:08:00,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:00,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:00,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:08:00,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:00,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:08:00,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:00,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 12:08:00,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:00,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:00,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:00,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:08:00,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:00,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:08:00,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:00,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:00,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:08:00,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:00,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:08:00,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:00,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 12:08:00,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:00,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:00,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:00,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:08:00,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:00,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:08:00,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:00,662 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:00,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:08:00,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:08:00,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:08:00,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:00,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 12:08:00,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:00,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:00,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:00,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:08:00,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:00,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:08:00,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:00,671 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:00,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:08:00,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:08:00,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:08:00,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:00,717 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 12:08:00,718 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [330303243] [2020-09-25 12:08:00,721 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:08:00,721 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 12:08:00,722 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815232851] [2020-09-25 12:08:00,729 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 12:08:00,729 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:08:00,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 12:08:00,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 12:08:00,758 INFO L87 Difference]: Start difference. First operand 322 states. Second operand 4 states. [2020-09-25 12:08:01,376 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 12:08:03,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:08:03,886 INFO L93 Difference]: Finished difference Result 705 states and 852 transitions. [2020-09-25 12:08:03,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 12:08:03,889 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 142 [2020-09-25 12:08:03,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:08:03,912 INFO L225 Difference]: With dead ends: 705 [2020-09-25 12:08:03,912 INFO L226 Difference]: Without dead ends: 494 [2020-09-25 12:08:03,918 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 12:08:03,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2020-09-25 12:08:04,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 422. [2020-09-25 12:08:04,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 422 states. [2020-09-25 12:08:04,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 471 transitions. [2020-09-25 12:08:04,102 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 471 transitions. Word has length 142 [2020-09-25 12:08:04,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:08:04,103 INFO L479 AbstractCegarLoop]: Abstraction has 422 states and 471 transitions. [2020-09-25 12:08:04,103 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 12:08:04,103 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 471 transitions. [2020-09-25 12:08:04,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-25 12:08:04,109 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:08:04,110 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:08:04,110 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 12:08:04,110 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:08:04,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:08:04,111 INFO L82 PathProgramCache]: Analyzing trace with hash -479844707, now seen corresponding path program 1 times [2020-09-25 12:08:04,111 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:08:04,111 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [350631969] [2020-09-25 12:08:04,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:08:04,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:04,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:04,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:04,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:04,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:09,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:09,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-09-25 12:08:09,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 12:08:09,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5042 [2020-09-25 12:08:09,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:09,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:09,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 12:08:09,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 12:08:09,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-25 12:08:09,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:09,482 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 12:08:09,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:08:09,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:09,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:09,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:09,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 12:08:09,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:09,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 261 [2020-09-25 12:08:09,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:09,780 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:09,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:08:09,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:09,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 12:08:09,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:09,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 12:08:09,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:09,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:09,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:09,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:08:09,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:09,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:08:09,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:09,842 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:09,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:08:09,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:09,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:08:09,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:09,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 12:08:09,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:09,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:09,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:09,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:08:09,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:09,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:08:09,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:09,853 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:09,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:08:09,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:09,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:08:09,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:09,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 12:08:09,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:09,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:09,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:09,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:08:09,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:09,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 12:08:09,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:09,869 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:09,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:08:09,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:09,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:08:09,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:09,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 12:08:09,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:09,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:09,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:09,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:08:09,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:09,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:08:09,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:09,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:09,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:08:09,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:09,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:08:09,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:09,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-25 12:08:09,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:09,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:09,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:09,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:09,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 12:08:09,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 12:08:09,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 12:08:09,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:09,914 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:09,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:08:09,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 12:08:09,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 12:08:09,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:09,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:08:09,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:09,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:09,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:09,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 12:08:09,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:09,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 12:08:09,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:09,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:09,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:08:09,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 12:08:09,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 12:08:09,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:09,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:08:09,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:09,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:09,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:09,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:08:09,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:09,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:08:09,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:09,958 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:09,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:08:09,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:09,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:08:09,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:09,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 12:08:09,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:09,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:09,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:09,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:08:09,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:09,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:08:09,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:09,967 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:09,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:08:09,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:08:09,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:08:09,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:09,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 12:08:09,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:09,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:09,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:09,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:08:09,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:09,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:08:09,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:09,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:09,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:08:09,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:08:09,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:08:09,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:10,079 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 12:08:10,080 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [350631969] [2020-09-25 12:08:10,080 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:08:10,081 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 12:08:10,081 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120770465] [2020-09-25 12:08:10,084 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 12:08:10,084 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:08:10,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 12:08:10,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 12:08:10,085 INFO L87 Difference]: Start difference. First operand 422 states and 471 transitions. Second operand 6 states. [2020-09-25 12:08:10,667 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 12:08:12,118 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 12:08:13,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:08:13,670 INFO L93 Difference]: Finished difference Result 1134 states and 1404 transitions. [2020-09-25 12:08:13,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 12:08:13,672 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 156 [2020-09-25 12:08:13,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:08:13,682 INFO L225 Difference]: With dead ends: 1134 [2020-09-25 12:08:13,682 INFO L226 Difference]: Without dead ends: 822 [2020-09-25 12:08:13,686 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-09-25 12:08:13,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 822 states. [2020-09-25 12:08:13,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 822 to 677. [2020-09-25 12:08:13,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 677 states. [2020-09-25 12:08:13,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 677 states to 677 states and 773 transitions. [2020-09-25 12:08:13,792 INFO L78 Accepts]: Start accepts. Automaton has 677 states and 773 transitions. Word has length 156 [2020-09-25 12:08:13,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:08:13,793 INFO L479 AbstractCegarLoop]: Abstraction has 677 states and 773 transitions. [2020-09-25 12:08:13,793 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 12:08:13,794 INFO L276 IsEmpty]: Start isEmpty. Operand 677 states and 773 transitions. [2020-09-25 12:08:13,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 12:08:13,797 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:08:13,797 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] [2020-09-25 12:08:13,797 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 12:08:13,798 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:08:13,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:08:13,798 INFO L82 PathProgramCache]: Analyzing trace with hash 870315564, now seen corresponding path program 1 times [2020-09-25 12:08:13,798 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:08:13,799 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1602095191] [2020-09-25 12:08:13,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:08:13,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:13,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:14,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:15,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:17,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:18,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:18,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-09-25 12:08:18,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 12:08:18,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5035 [2020-09-25 12:08:18,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:18,889 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:18,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 12:08:18,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 12:08:18,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-09-25 12:08:18,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:19,326 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 12:08:19,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:08:19,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:19,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:19,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:19,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 12:08:19,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:19,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 255 [2020-09-25 12:08:19,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:19,617 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:19,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:08:19,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:19,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 12:08:19,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:19,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 12:08:19,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:19,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:19,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:19,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:08:19,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:19,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:08:19,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:19,678 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:19,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:08:19,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:19,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:08:19,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:19,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 12:08:19,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:19,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:19,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:19,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:08:19,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:19,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:08:19,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:19,686 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:19,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:08:19,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:19,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:08:19,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:19,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 12:08:19,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:19,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:19,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:19,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:08:19,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:19,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 12:08:19,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:19,699 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:19,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:08:19,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:19,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:08:19,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:08:19,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 12:08:19,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:19,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:19,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:19,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:08:19,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:19,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:08:19,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:19,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:19,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:08:19,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:19,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:08:19,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:08:19,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 12:08:19,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:19,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:19,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:19,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 12:08:19,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:19,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:08:19,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:19,730 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:19,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:08:19,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:19,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 12:08:19,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:19,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 12:08:19,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:19,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:19,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:19,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:08:19,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:19,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 12:08:19,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:19,742 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:19,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:08:19,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:19,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:08:19,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:19,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 12:08:19,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:19,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:19,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:19,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:08:19,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:19,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:08:19,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:19,777 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:19,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:08:19,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:08:19,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:08:19,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:19,811 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 12:08:19,812 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1602095191] [2020-09-25 12:08:19,813 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:08:19,813 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 12:08:19,814 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314436915] [2020-09-25 12:08:19,815 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 12:08:19,815 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:08:19,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 12:08:19,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 12:08:19,816 INFO L87 Difference]: Start difference. First operand 677 states and 773 transitions. Second operand 10 states. [2020-09-25 12:08:20,467 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 12:08:22,012 WARN L193 SmtUtils]: Spent 555.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-09-25 12:08:22,559 WARN L193 SmtUtils]: Spent 514.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 12:08:22,912 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:08:23,246 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 12:08:23,490 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:08:24,520 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:08:24,852 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 12:08:25,309 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 12:08:26,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:08:26,858 INFO L93 Difference]: Finished difference Result 1718 states and 2169 transitions. [2020-09-25 12:08:26,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 12:08:26,860 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 161 [2020-09-25 12:08:26,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:08:26,874 INFO L225 Difference]: With dead ends: 1718 [2020-09-25 12:08:26,875 INFO L226 Difference]: Without dead ends: 1151 [2020-09-25 12:08:26,878 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2020-09-25 12:08:26,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1151 states. [2020-09-25 12:08:27,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1151 to 1051. [2020-09-25 12:08:27,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1051 states. [2020-09-25 12:08:27,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1051 states to 1051 states and 1273 transitions. [2020-09-25 12:08:27,067 INFO L78 Accepts]: Start accepts. Automaton has 1051 states and 1273 transitions. Word has length 161 [2020-09-25 12:08:27,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:08:27,069 INFO L479 AbstractCegarLoop]: Abstraction has 1051 states and 1273 transitions. [2020-09-25 12:08:27,069 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 12:08:27,069 INFO L276 IsEmpty]: Start isEmpty. Operand 1051 states and 1273 transitions. [2020-09-25 12:08:27,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2020-09-25 12:08:27,078 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:08:27,078 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:08:27,079 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 12:08:27,079 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:08:27,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:08:27,080 INFO L82 PathProgramCache]: Analyzing trace with hash 1037603338, now seen corresponding path program 1 times [2020-09-25 12:08:27,080 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:08:27,080 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [104103984] [2020-09-25 12:08:27,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:08:27,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:27,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:27,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:27,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:27,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:27,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:29,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:32,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:32,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 340 [2020-09-25 12:08:32,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 12:08:32,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5050 [2020-09-25 12:08:32,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:32,204 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:32,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:08:32,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 158 [2020-09-25 12:08:32,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-25 12:08:32,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:32,477 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 12:08:32,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:08:32,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:32,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:32,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:32,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 12:08:32,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:32,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-25 12:08:32,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:32,584 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:32,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:08:32,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:32,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:08:32,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:32,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 12:08:32,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:32,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:32,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:32,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:08:32,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:32,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 12:08:32,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:32,622 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:32,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:08:32,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:32,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:08:32,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:32,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 12:08:32,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:32,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:32,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:32,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:08:32,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:32,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 12:08:32,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:32,629 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:32,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:08:32,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:32,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:08:32,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:08:32,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 12:08:32,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:32,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:32,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:32,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:08:32,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:32,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:08:32,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:32,638 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:32,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:08:32,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:32,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:08:32,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:32,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 12:08:32,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:32,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:32,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:32,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:08:32,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:32,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 12:08:32,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:32,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:32,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:08:32,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:32,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:08:32,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:32,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 12:08:32,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:32,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:32,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:32,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 12:08:32,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:32,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:08:32,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:32,658 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:32,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:08:32,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:32,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:08:32,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:32,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-25 12:08:32,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:32,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:32,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:32,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 12:08:32,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:32,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 12:08:32,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:32,693 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:32,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:08:32,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:32,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 12:08:32,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:08:32,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:08:32,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:32,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:32,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:32,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 12:08:32,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:32,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 12:08:32,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:32,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:32,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:08:32,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:32,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 12:08:32,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:32,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:08:32,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:32,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:32,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:32,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:08:32,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:32,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:08:32,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:32,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:32,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:08:32,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:32,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:08:32,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:32,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-09-25 12:08:32,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:32,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:32,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:32,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:32,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 12:08:32,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 12:08:32,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-25 12:08:32,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:32,764 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:32,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:08:32,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:32,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-25 12:08:32,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:32,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:08:32,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:32,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:32,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:32,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 12:08:32,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:32,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 12:08:32,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:32,780 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:32,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:08:32,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:32,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:08:32,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:32,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:08:32,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:32,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:32,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:32,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:08:32,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:32,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:08:32,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:32,788 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:32,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:08:32,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:32,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:08:32,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:32,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-09-25 12:08:32,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:32,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:32,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:32,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:32,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-09-25 12:08:32,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 12:08:32,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 179 [2020-09-25 12:08:32,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:32,986 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:32,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:08:32,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 12:08:32,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-09-25 12:08:32,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:33,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:08:33,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:33,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:33,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:33,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:33,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 12:08:33,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 12:08:33,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 149 [2020-09-25 12:08:33,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:33,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:33,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:08:33,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:33,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-25 12:08:33,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:33,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:08:33,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:33,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:33,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:33,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:33,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 12:08:33,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 12:08:33,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-09-25 12:08:33,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:33,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:33,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:08:33,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 12:08:33,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 12:08:33,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:33,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:08:33,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:33,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:33,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:33,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 12:08:33,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:33,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 12:08:33,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:33,347 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:33,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:08:33,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:33,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 12:08:33,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:33,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:08:33,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:33,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:33,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:33,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 12:08:33,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:33,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 12:08:33,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:33,401 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:33,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:08:33,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:33,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:08:33,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:33,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 12:08:33,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:33,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:33,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:33,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 12:08:33,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:33,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:08:33,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:33,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:33,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:08:33,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 12:08:33,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:08:33,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:33,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-25 12:08:33,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:33,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:33,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:33,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 12:08:33,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:33,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 12:08:33,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:33,430 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:33,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:08:33,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:33,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 12:08:33,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:33,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:08:33,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:33,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:33,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:33,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:08:33,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:33,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:08:33,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:33,437 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:33,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:08:33,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:33,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:08:33,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:33,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2020-09-25 12:08:33,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:33,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:33,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:33,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 12:08:33,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:33,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:08:33,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:33,466 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:33,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:08:33,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 12:08:33,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:08:33,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:33,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-09-25 12:08:33,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:33,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:33,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:33,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:08:33,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:33,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:08:33,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:33,473 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:33,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:08:33,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:08:33,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:08:33,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:33,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2020-09-25 12:08:33,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:33,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:33,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:33,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:08:33,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:33,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:08:33,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:33,480 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:33,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:08:33,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:08:33,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:08:33,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:33,567 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 39 proven. 6 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2020-09-25 12:08:33,568 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [104103984] [2020-09-25 12:08:33,568 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 12:08:33,568 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-09-25 12:08:33,569 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81788997] [2020-09-25 12:08:33,569 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-25 12:08:33,570 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:08:33,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-25 12:08:33,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2020-09-25 12:08:33,571 INFO L87 Difference]: Start difference. First operand 1051 states and 1273 transitions. Second operand 14 states. [2020-09-25 12:08:34,127 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 12:08:35,247 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 12:08:35,664 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:08:35,977 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 12:08:36,299 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 12:08:36,641 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:08:36,996 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 12:08:37,305 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 189