/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=0.1 --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_product51.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 09:53:10,990 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 09:53:10,994 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 09:53:11,039 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 09:53:11,040 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 09:53:11,051 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 09:53:11,053 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 09:53:11,057 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 09:53:11,060 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 09:53:11,063 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 09:53:11,063 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 09:53:11,066 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 09:53:11,066 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 09:53:11,070 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 09:53:11,073 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 09:53:11,075 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 09:53:11,077 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 09:53:11,078 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 09:53:11,080 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 09:53:11,087 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 09:53:11,090 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 09:53:11,092 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 09:53:11,093 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 09:53:11,094 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 09:53:11,099 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 09:53:11,100 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 09:53:11,100 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 09:53:11,104 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 09:53:11,104 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 09:53:11,106 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 09:53:11,107 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 09:53:11,107 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 09:53:11,108 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 09:53:11,109 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 09:53:11,111 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 09:53:11,111 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 09:53:11,112 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 09:53:11,112 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 09:53:11,112 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 09:53:11,113 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 09:53:11,115 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 09:53:11,116 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 09:53:11,167 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 09:53:11,168 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 09:53:11,170 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 09:53:11,170 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 09:53:11,170 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 09:53:11,171 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 09:53:11,171 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 09:53:11,171 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 09:53:11,172 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 09:53:11,172 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 09:53:11,173 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 09:53:11,173 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 09:53:11,173 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 09:53:11,174 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 09:53:11,174 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 09:53:11,174 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 09:53:11,174 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 09:53:11,175 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 09:53:11,175 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 09:53:11,175 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 09:53:11,175 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 09:53:11,175 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 09:53:11,176 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 09:53:11,176 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 09:53:11,176 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 09:53:11,176 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 09:53:11,176 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 09:53:11,177 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 09:53:11,177 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 09:53:11,177 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=0.1;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=0.1;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=0.1;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=0.1;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=0.1;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=0.1;log-additional-information=true; [2020-09-25 09:53:11,682 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 09:53:11,706 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 09:53:11,711 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 09:53:11,713 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 09:53:11,713 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 09:53:11,714 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product51.cil.c [2020-09-25 09:53:11,808 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ab3a7587c/c4f67d31ebef4fbe899892f1c8db58a9/FLAG146d6da54 [2020-09-25 09:53:12,436 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 09:53:12,437 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product51.cil.c [2020-09-25 09:53:12,451 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ab3a7587c/c4f67d31ebef4fbe899892f1c8db58a9/FLAG146d6da54 [2020-09-25 09:53:12,688 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ab3a7587c/c4f67d31ebef4fbe899892f1c8db58a9 [2020-09-25 09:53:12,701 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 09:53:12,706 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 09:53:12,707 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 09:53:12,708 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 09:53:12,713 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 09:53:12,715 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:53:12" (1/1) ... [2020-09-25 09:53:12,719 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@538d8bff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:53:12, skipping insertion in model container [2020-09-25 09:53:12,719 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:53:12" (1/1) ... [2020-09-25 09:53:12,730 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 09:53:12,780 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 09:53:13,254 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 09:53:13,280 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 09:53:13,368 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 09:53:13,426 INFO L208 MainTranslator]: Completed translation [2020-09-25 09:53:13,427 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:53:13 WrapperNode [2020-09-25 09:53:13,427 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 09:53:13,428 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 09:53:13,428 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 09:53:13,429 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 09:53:13,443 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:53:13" (1/1) ... [2020-09-25 09:53:13,443 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:53:13" (1/1) ... [2020-09-25 09:53:13,463 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:53:13" (1/1) ... [2020-09-25 09:53:13,464 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:53:13" (1/1) ... [2020-09-25 09:53:13,499 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:53:13" (1/1) ... [2020-09-25 09:53:13,511 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:53:13" (1/1) ... [2020-09-25 09:53:13,516 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:53:13" (1/1) ... [2020-09-25 09:53:13,525 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 09:53:13,525 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 09:53:13,525 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 09:53:13,526 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 09:53:13,527 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:53:13" (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 09:53:13,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 09:53:13,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 09:53:13,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 09:53:13,626 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 09:53:13,627 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 09:53:13,627 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 09:53:13,627 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 09:53:13,628 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 09:53:13,628 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-25 09:53:13,629 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 09:53:13,629 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 09:53:13,629 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 09:53:13,629 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 09:53:13,629 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 09:53:13,630 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 09:53:13,631 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 09:53:13,631 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 09:53:13,631 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 09:53:13,631 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 09:53:13,632 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 09:53:13,632 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 09:53:13,632 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 09:53:13,633 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 09:53:13,633 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 09:53:13,633 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 09:53:13,634 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 09:53:13,634 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 09:53:13,635 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 09:53:13,635 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 09:53:13,635 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 09:53:13,635 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 09:53:13,635 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 09:53:13,636 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 09:53:13,636 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 09:53:13,636 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 09:53:13,636 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 09:53:13,636 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 09:53:13,636 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 09:53:13,637 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 09:53:13,637 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 09:53:13,637 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 09:53:13,637 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 09:53:13,637 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 09:53:13,638 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 09:53:13,639 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 09:53:13,639 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 09:53:13,639 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 09:53:13,640 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 09:53:13,640 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 09:53:13,640 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 09:53:13,640 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 09:53:13,641 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 09:53:13,641 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 09:53:13,641 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 09:53:13,642 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 09:53:13,642 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 09:53:13,642 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 09:53:13,642 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 09:53:13,642 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 09:53:13,642 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 09:53:13,643 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-25 09:53:13,643 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 09:53:13,643 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 09:53:13,644 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 09:53:13,644 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 09:53:13,644 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 09:53:13,644 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 09:53:13,645 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 09:53:13,645 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 09:53:13,646 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 09:53:13,646 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 09:53:13,648 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 09:53:13,648 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 09:53:13,648 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 09:53:13,648 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 09:53:13,649 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 09:53:13,649 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 09:53:13,649 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 09:53:13,649 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 09:53:13,649 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 09:53:13,649 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 09:53:13,649 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 09:53:13,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 09:53:13,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 09:53:13,651 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 09:53:13,651 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 09:53:13,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 09:53:13,651 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 09:53:13,651 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 09:53:13,652 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 09:53:13,652 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 09:53:13,652 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 09:53:13,652 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 09:53:13,652 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 09:53:13,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 09:53:13,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 09:53:15,011 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 09:53:15,011 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 09:53:15,024 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:53:15 BoogieIcfgContainer [2020-09-25 09:53:15,025 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 09:53:15,027 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 09:53:15,027 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 09:53:15,032 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 09:53:15,032 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 09:53:12" (1/3) ... [2020-09-25 09:53:15,033 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ff78be2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:53:15, skipping insertion in model container [2020-09-25 09:53:15,034 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:53:13" (2/3) ... [2020-09-25 09:53:15,034 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ff78be2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:53:15, skipping insertion in model container [2020-09-25 09:53:15,035 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:53:15" (3/3) ... [2020-09-25 09:53:15,037 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product51.cil.c [2020-09-25 09:53:15,049 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 09:53:15,065 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 09:53:15,087 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 09:53:15,118 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 09:53:15,118 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 09:53:15,118 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 09:53:15,118 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 09:53:15,119 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 09:53:15,119 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 09:53:15,119 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 09:53:15,119 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 09:53:15,149 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states. [2020-09-25 09:53:15,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 09:53:15,169 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:53:15,170 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 09:53:15,171 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:53:15,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:53:15,183 INFO L82 PathProgramCache]: Analyzing trace with hash -2089318466, now seen corresponding path program 1 times [2020-09-25 09:53:15,193 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:53:15,194 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1309407671] [2020-09-25 09:53:15,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:53:15,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:15,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:15,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:17,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:18,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:20,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:20,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 09:53:20,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 09:53:20,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-09-25 09:53:20,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:20,552 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:20,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 09:53:20,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 09:53:20,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-25 09:53:20,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 16 [2020-09-25 09:53:21,119 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 09:53:21,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:53:21,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:21,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:21,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:21,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 09:53:21,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:21,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 294 [2020-09-25 09:53:21,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:21,480 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:21,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:53:21,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:21,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 09:53:21,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:21,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 09:53:21,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:21,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:21,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:21,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:53:21,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:21,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 09:53:21,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:21,592 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:21,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:53:21,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:21,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:53:21,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:21,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 09:53:21,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:21,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:21,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:21,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:53:21,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:21,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:53:21,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:21,608 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:21,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:53:21,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:21,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:53:21,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:21,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 09:53:21,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:21,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:21,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:21,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:53:21,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:21,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 09:53:21,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:21,627 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:21,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:53:21,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:21,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:53:21,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:21,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 09:53:21,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:21,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:21,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:21,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:53:21,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:21,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:53:21,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:21,641 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:21,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:53:21,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:21,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:53:21,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:21,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 09:53:21,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:21,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:21,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:21,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:53:21,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:21,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 09:53:21,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:21,665 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:21,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:53:21,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:21,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:53:21,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 09:53:21,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 09:53:21,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:21,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:21,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:21,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:53:21,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:21,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:53:21,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:21,698 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:21,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:53:21,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:53:21,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:53:21,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:21,733 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 09:53:21,733 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1309407671] [2020-09-25 09:53:21,764 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:53:21,764 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 09:53:21,765 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479949297] [2020-09-25 09:53:21,775 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 09:53:21,775 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:53:21,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 09:53:21,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 09:53:21,796 INFO L87 Difference]: Start difference. First operand 318 states. Second operand 8 states. [2020-09-25 09:53:22,362 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:53:23,295 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:53:23,679 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:53:24,151 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:53:24,489 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:53:24,841 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:53:25,211 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:53:25,574 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:53:27,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:53:27,883 INFO L93 Difference]: Finished difference Result 669 states and 825 transitions. [2020-09-25 09:53:27,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 09:53:27,894 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-25 09:53:27,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:53:27,916 INFO L225 Difference]: With dead ends: 669 [2020-09-25 09:53:27,916 INFO L226 Difference]: Without dead ends: 462 [2020-09-25 09:53:27,923 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-25 09:53:27,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2020-09-25 09:53:28,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 416. [2020-09-25 09:53:28,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 416 states. [2020-09-25 09:53:28,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 472 transitions. [2020-09-25 09:53:28,068 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 472 transitions. Word has length 142 [2020-09-25 09:53:28,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:53:28,069 INFO L479 AbstractCegarLoop]: Abstraction has 416 states and 472 transitions. [2020-09-25 09:53:28,070 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 09:53:28,070 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 472 transitions. [2020-09-25 09:53:28,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 09:53:28,076 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:53:28,076 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:53:28,076 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 09:53:28,077 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:53:28,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:53:28,077 INFO L82 PathProgramCache]: Analyzing trace with hash -719575793, now seen corresponding path program 1 times [2020-09-25 09:53:28,078 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:53:28,078 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1101135273] [2020-09-25 09:53:28,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:53:28,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:28,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:28,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:29,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:33,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:33,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 09:53:33,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 09:53:33,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5038 [2020-09-25 09:53:33,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:33,174 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:33,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 09:53:33,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 09:53:33,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-09-25 09:53:33,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:33,434 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 09:53:33,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:53:33,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:33,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:33,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:33,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 09:53:33,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:33,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 222 [2020-09-25 09:53:33,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:33,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:33,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:53:33,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:33,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 09:53:33,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:33,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 09:53:33,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:33,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:33,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:33,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:53:33,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:33,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:53:33,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:33,748 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:33,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:53:33,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:33,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:53:33,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:33,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 09:53:33,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:33,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:33,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:33,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:53:33,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:33,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:53:33,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:33,757 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:33,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:53:33,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:33,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:53:33,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:33,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 09:53:33,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:33,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:33,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:33,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:53:33,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:33,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 09:53:33,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:33,770 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:33,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:53:33,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:33,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:53:33,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:33,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 09:53:33,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:33,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:33,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:33,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:53:33,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:33,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:53:33,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:33,779 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:33,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:53:33,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:33,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:53:33,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:33,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-25 09:53:33,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:33,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:33,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:33,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:53:33,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:33,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-25 09:53:33,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:33,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:33,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:53:33,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:33,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 09:53:33,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:33,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-25 09:53:33,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:33,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:33,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:33,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:53:33,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:33,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:53:33,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:33,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:33,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:53:33,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:53:33,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:53:33,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:33,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 09:53:33,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:33,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:33,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:33,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:53:33,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:33,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:53:33,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:33,843 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:33,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:53:33,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:53:33,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:53:33,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:53:33,880 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 09:53:33,880 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1101135273] [2020-09-25 09:53:33,881 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:53:33,881 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 09:53:33,881 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814352393] [2020-09-25 09:53:33,884 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 09:53:33,884 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:53:33,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 09:53:33,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 09:53:33,885 INFO L87 Difference]: Start difference. First operand 416 states and 472 transitions. Second operand 5 states. [2020-09-25 09:53:34,370 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:53:36,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:53:36,979 INFO L93 Difference]: Finished difference Result 1107 states and 1340 transitions. [2020-09-25 09:53:36,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 09:53:36,980 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 148 [2020-09-25 09:53:36,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:53:36,989 INFO L225 Difference]: With dead ends: 1107 [2020-09-25 09:53:36,990 INFO L226 Difference]: Without dead ends: 801 [2020-09-25 09:53:36,994 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 09:53:36,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 801 states. [2020-09-25 09:53:37,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 801 to 705. [2020-09-25 09:53:37,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 705 states. [2020-09-25 09:53:37,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 705 states and 813 transitions. [2020-09-25 09:53:37,137 INFO L78 Accepts]: Start accepts. Automaton has 705 states and 813 transitions. Word has length 148 [2020-09-25 09:53:37,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:53:37,138 INFO L479 AbstractCegarLoop]: Abstraction has 705 states and 813 transitions. [2020-09-25 09:53:37,138 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 09:53:37,138 INFO L276 IsEmpty]: Start isEmpty. Operand 705 states and 813 transitions. [2020-09-25 09:53:37,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-09-25 09:53:37,143 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:53:37,143 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:53:37,144 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 09:53:37,144 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:53:37,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:53:37,144 INFO L82 PathProgramCache]: Analyzing trace with hash -505298140, now seen corresponding path program 1 times [2020-09-25 09:53:37,145 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:53:37,145 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [969496019] [2020-09-25 09:53:37,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:53:37,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:37,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:37,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:37,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:38,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:41,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:41,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:41,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:42,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:42,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-09-25 09:53:42,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 09:53:42,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-09-25 09:53:42,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:42,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:42,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 09:53:42,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 09:53:42,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-09-25 09:53:42,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:42,535 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 09:53:42,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:53:42,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:42,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:42,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:42,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 09:53:42,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:42,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 222 [2020-09-25 09:53:42,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:42,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:42,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:53:42,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:42,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 09:53:42,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:42,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 09:53:42,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:42,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:42,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:42,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:53:42,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:42,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:53:42,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:42,842 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:42,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:53:42,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:42,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:53:42,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:42,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 09:53:42,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:42,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:42,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:42,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:53:42,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:42,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:53:42,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:42,849 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:42,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:53:42,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:42,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:53:42,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:42,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 09:53:42,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:42,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:42,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:42,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:53:42,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:42,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 09:53:42,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:42,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:42,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:53:42,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:42,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:53:42,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:53:42,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 09:53:42,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:42,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:42,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:42,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:53:42,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:42,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:53:42,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:42,870 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:42,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:53:42,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:42,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:53:42,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:42,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-25 09:53:42,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:42,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:42,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:42,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:53:42,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:42,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 09:53:42,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:42,895 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:42,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:53:42,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 09:53:42,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 09:53:42,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:42,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 09:53:42,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:42,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:42,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:42,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:42,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 09:53:42,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:53:42,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 09:53:42,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:42,958 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:42,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:53:42,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:42,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 09:53:42,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:53:42,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:53:42,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:42,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:42,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:42,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 09:53:42,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:42,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:53:42,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:42,968 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:42,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:53:42,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:42,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:53:42,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:42,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:53:42,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:42,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:42,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:42,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:53:42,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:42,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:53:42,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:42,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:42,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:53:42,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:42,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:53:42,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:42,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 09:53:42,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:42,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:42,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:42,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:53:42,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:42,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 09:53:42,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:42,989 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:42,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:53:42,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:42,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:53:42,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:43,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-09-25 09:53:43,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:43,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:43,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:43,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:53:43,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:43,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:53:43,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:43,037 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:43,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:53:43,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:53:43,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:53:43,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:43,098 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 09:53:43,098 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [969496019] [2020-09-25 09:53:43,099 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:53:43,099 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-25 09:53:43,099 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618434910] [2020-09-25 09:53:43,100 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 09:53:43,100 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:53:43,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 09:53:43,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2020-09-25 09:53:43,102 INFO L87 Difference]: Start difference. First operand 705 states and 813 transitions. Second operand 13 states. [2020-09-25 09:53:43,793 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:53:44,742 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:53:46,070 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:53:46,480 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:53:47,115 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:53:47,503 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:53:48,154 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:53:48,515 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:53:49,081 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:53:49,518 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:53:49,886 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:53:54,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:53:54,568 INFO L93 Difference]: Finished difference Result 2121 states and 3065 transitions. [2020-09-25 09:53:54,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-09-25 09:53:54,576 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 170 [2020-09-25 09:53:54,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:53:54,596 INFO L225 Difference]: With dead ends: 2121 [2020-09-25 09:53:54,597 INFO L226 Difference]: Without dead ends: 1795 [2020-09-25 09:53:54,599 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=278, Invalid=844, Unknown=0, NotChecked=0, Total=1122 [2020-09-25 09:53:54,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1795 states. [2020-09-25 09:53:54,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1795 to 1283. [2020-09-25 09:53:54,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1283 states. [2020-09-25 09:53:54,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1283 states to 1283 states and 1558 transitions. [2020-09-25 09:53:54,854 INFO L78 Accepts]: Start accepts. Automaton has 1283 states and 1558 transitions. Word has length 170 [2020-09-25 09:53:54,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:53:54,855 INFO L479 AbstractCegarLoop]: Abstraction has 1283 states and 1558 transitions. [2020-09-25 09:53:54,855 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 09:53:54,855 INFO L276 IsEmpty]: Start isEmpty. Operand 1283 states and 1558 transitions. [2020-09-25 09:53:54,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 09:53:54,868 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:53:54,869 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 09:53:54,869 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 09:53:54,869 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:53:54,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:53:54,870 INFO L82 PathProgramCache]: Analyzing trace with hash -1995506772, now seen corresponding path program 1 times [2020-09-25 09:53:54,870 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:53:54,870 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [216996087] [2020-09-25 09:53:54,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:53:54,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:54,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:55,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:55,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:55,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:56,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:59,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:59,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 09:53:59,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 09:53:59,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5043 [2020-09-25 09:53:59,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:59,967 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:59,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 09:53:59,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 09:53:59,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 09:53:59,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:54:00,280 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 09:54:00,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:54:00,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:54:00,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:54:00,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:54:00,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 09:54:00,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:54:00,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 219 [2020-09-25 09:54:00,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:54:00,531 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:54:00,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:54:00,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:54:00,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 09:54:00,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:54:00,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 09:54:00,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:54:00,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:54:00,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:54:00,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:54:00,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:54:00,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:54:00,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:54:00,586 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:54:00,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:54:00,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:54:00,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:54:00,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:54:00,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 09:54:00,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:54:00,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:54:00,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:54:00,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:54:00,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:54:00,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:54:00,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:54:00,596 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:54:00,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:54:00,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:54:00,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:54:00,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:54:00,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 09:54:00,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:54:00,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:54:00,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:54:00,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:54:00,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:54:00,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 09:54:00,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:54:00,611 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:54:00,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:54:00,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:54:00,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:54:00,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:54:00,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 09:54:00,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:54:00,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:54:00,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:54:00,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:54:00,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:54:00,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:54:00,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:54:00,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:54:00,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:54:00,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:54:00,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:54:00,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:54:00,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-25 09:54:00,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:54:00,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:54:00,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:54:00,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:54:00,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:54:00,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 09:54:00,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:54:00,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:54:00,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:54:00,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:54:00,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 09:54:00,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:54:00,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-25 09:54:00,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:54:00,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:54:00,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:54:00,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:54:00,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 09:54:00,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:54:00,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 09:54:00,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:54:00,681 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:54:00,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 09:54:00,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 09:54:00,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 09:54:00,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:54:00,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:54:00,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:54:00,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:54:00,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:54:00,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 09:54:00,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:54:00,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 09:54:00,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:54:00,710 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:54:00,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:54:00,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 09:54:00,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 09:54:00,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:54:00,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:54:00,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:54:00,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:54:00,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:54:00,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:54:00,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:54:00,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 09:54:00,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:54:00,802 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:54:00,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:54:00,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:54:00,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:54:00,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 09:54:00,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 09:54:00,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:54:00,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:54:00,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:54:00,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:54:00,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:54:00,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:54:00,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:54:00,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:54:00,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:54:00,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:54:00,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:54:00,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:54:00,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 09:54:00,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:54:00,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:54:00,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:54:00,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:54:00,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:54:00,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 09:54:00,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:54:00,836 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:54:00,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:54:00,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:54:00,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:54:00,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:54:00,868 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 09:54:00,868 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [216996087] [2020-09-25 09:54:00,869 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:54:00,869 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 09:54:00,869 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710157418] [2020-09-25 09:54:00,870 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 09:54:00,870 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:54:00,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 09:54:00,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-09-25 09:54:00,871 INFO L87 Difference]: Start difference. First operand 1283 states and 1558 transitions. Second operand 8 states. [2020-09-25 09:54:01,333 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 186