/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=1.0 --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_product36.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 08:45:07,437 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 08:45:07,442 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 08:45:07,490 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 08:45:07,490 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 08:45:07,501 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 08:45:07,504 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 08:45:07,507 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 08:45:07,510 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 08:45:07,514 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 08:45:07,515 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 08:45:07,516 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 08:45:07,516 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 08:45:07,519 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 08:45:07,523 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 08:45:07,526 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 08:45:07,527 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 08:45:07,528 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 08:45:07,530 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 08:45:07,537 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 08:45:07,540 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 08:45:07,541 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 08:45:07,542 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 08:45:07,543 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 08:45:07,548 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 08:45:07,548 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 08:45:07,549 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 08:45:07,552 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 08:45:07,553 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 08:45:07,555 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 08:45:07,555 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 08:45:07,556 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 08:45:07,557 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 08:45:07,558 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 08:45:07,559 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 08:45:07,559 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 08:45:07,560 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 08:45:07,560 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 08:45:07,560 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 08:45:07,562 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 08:45:07,563 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 08:45:07,564 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 08:45:07,611 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 08:45:07,612 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 08:45:07,614 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 08:45:07,614 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 08:45:07,614 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 08:45:07,615 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 08:45:07,615 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 08:45:07,615 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 08:45:07,615 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 08:45:07,616 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 08:45:07,617 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 08:45:07,617 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 08:45:07,617 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 08:45:07,618 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 08:45:07,618 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 08:45:07,619 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 08:45:07,619 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 08:45:07,619 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 08:45:07,619 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 08:45:07,619 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 08:45:07,620 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 08:45:07,620 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 08:45:07,620 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 08:45:07,620 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 08:45:07,620 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 08:45:07,621 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 08:45:07,621 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 08:45:07,621 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 08:45:07,621 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 08:45:07,621 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=WIDESTAMONGSMALL;tolerance=1.0;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=WIDESTAMONGSMALL;tolerance=1.0;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=WIDESTAMONGSMALL;tolerance=1.0;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=WIDESTAMONGSMALL;tolerance=1.0;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=WIDESTAMONGSMALL;tolerance=1.0;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=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; [2020-09-25 08:45:08,046 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 08:45:08,070 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 08:45:08,077 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 08:45:08,079 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 08:45:08,080 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 08:45:08,081 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product36.cil.c [2020-09-25 08:45:08,170 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c4e378392/f91256ff728e464a8561d162a132eeaf/FLAG79bda6f87 [2020-09-25 08:45:08,819 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 08:45:08,820 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product36.cil.c [2020-09-25 08:45:08,842 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c4e378392/f91256ff728e464a8561d162a132eeaf/FLAG79bda6f87 [2020-09-25 08:45:09,080 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c4e378392/f91256ff728e464a8561d162a132eeaf [2020-09-25 08:45:09,094 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 08:45:09,099 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 08:45:09,101 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 08:45:09,101 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 08:45:09,105 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 08:45:09,107 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:45:09" (1/1) ... [2020-09-25 08:45:09,111 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5db1276a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:45:09, skipping insertion in model container [2020-09-25 08:45:09,111 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:45:09" (1/1) ... [2020-09-25 08:45:09,121 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 08:45:09,171 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 08:45:09,600 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:45:09,724 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 08:45:09,822 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:45:09,862 INFO L208 MainTranslator]: Completed translation [2020-09-25 08:45:09,862 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:45:09 WrapperNode [2020-09-25 08:45:09,862 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 08:45:09,863 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 08:45:09,863 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 08:45:09,864 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 08:45:09,878 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:45:09" (1/1) ... [2020-09-25 08:45:09,878 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:45:09" (1/1) ... [2020-09-25 08:45:09,900 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:45:09" (1/1) ... [2020-09-25 08:45:09,901 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:45:09" (1/1) ... [2020-09-25 08:45:09,935 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:45:09" (1/1) ... [2020-09-25 08:45:09,949 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:45:09" (1/1) ... [2020-09-25 08:45:09,955 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:45:09" (1/1) ... [2020-09-25 08:45:09,964 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 08:45:09,965 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 08:45:09,965 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 08:45:09,965 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 08:45:09,967 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:45:09" (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 08:45:10,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 08:45:10,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 08:45:10,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 08:45:10,065 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 08:45:10,066 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 08:45:10,066 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 08:45:10,066 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 08:45:10,067 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 08:45:10,067 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 08:45:10,068 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 08:45:10,068 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 08:45:10,068 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 08:45:10,068 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 08:45:10,068 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 08:45:10,068 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 08:45:10,069 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 08:45:10,070 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 08:45:10,070 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 08:45:10,070 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 08:45:10,070 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 08:45:10,071 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 08:45:10,071 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 08:45:10,071 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 08:45:10,071 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 08:45:10,072 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 08:45:10,072 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 08:45:10,073 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 08:45:10,073 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 08:45:10,073 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 08:45:10,073 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 08:45:10,073 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 08:45:10,073 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 08:45:10,074 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 08:45:10,074 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 08:45:10,074 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 08:45:10,074 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 08:45:10,074 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 08:45:10,074 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 08:45:10,074 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-25 08:45:10,075 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 08:45:10,075 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 08:45:10,075 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 08:45:10,075 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 08:45:10,075 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 08:45:10,076 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 08:45:10,076 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 08:45:10,076 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 08:45:10,076 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 08:45:10,076 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 08:45:10,077 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 08:45:10,077 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 08:45:10,077 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 08:45:10,077 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 08:45:10,078 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 08:45:10,078 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 08:45:10,078 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 08:45:10,078 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 08:45:10,078 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-25 08:45:10,078 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 08:45:10,079 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 08:45:10,079 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 08:45:10,079 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 08:45:10,079 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 08:45:10,079 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 08:45:10,080 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 08:45:10,080 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 08:45:10,080 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 08:45:10,080 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 08:45:10,080 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 08:45:10,081 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 08:45:10,081 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 08:45:10,083 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 08:45:10,083 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 08:45:10,083 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 08:45:10,083 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 08:45:10,083 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 08:45:10,084 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 08:45:10,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 08:45:10,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 08:45:10,084 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 08:45:10,084 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 08:45:10,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 08:45:10,085 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 08:45:10,086 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 08:45:10,086 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 08:45:10,086 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 08:45:10,086 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 08:45:10,086 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 08:45:10,086 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 08:45:10,086 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 08:45:10,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 08:45:10,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 08:45:11,241 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 08:45:11,242 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 08:45:11,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:45:11 BoogieIcfgContainer [2020-09-25 08:45:11,249 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 08:45:11,250 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 08:45:11,250 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 08:45:11,254 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 08:45:11,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 08:45:09" (1/3) ... [2020-09-25 08:45:11,255 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21a29359 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:45:11, skipping insertion in model container [2020-09-25 08:45:11,255 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:45:09" (2/3) ... [2020-09-25 08:45:11,255 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21a29359 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:45:11, skipping insertion in model container [2020-09-25 08:45:11,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:45:11" (3/3) ... [2020-09-25 08:45:11,258 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product36.cil.c [2020-09-25 08:45:11,270 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 08:45:11,281 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 08:45:11,304 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 08:45:11,336 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 08:45:11,337 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 08:45:11,337 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 08:45:11,337 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 08:45:11,337 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 08:45:11,337 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 08:45:11,337 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 08:45:11,337 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 08:45:11,362 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states. [2020-09-25 08:45:11,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 08:45:11,380 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:45:11,382 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 08:45:11,382 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:45:11,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:45:11,390 INFO L82 PathProgramCache]: Analyzing trace with hash 391863934, now seen corresponding path program 1 times [2020-09-25 08:45:11,402 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:45:11,403 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1358976301] [2020-09-25 08:45:11,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:45:11,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:45:11,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:45:12,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:45:13,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:45:14,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:45:16,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:45:16,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 08:45:16,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:45:16,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 08:45:16,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:45:16,747 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:45:16,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:45:16,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 08:45:16,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:45:16,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 08:45:17,164 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 08:45:17,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:45:17,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:45:17,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:45:17,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:45:17,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 08:45:17,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:45:17,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-09-25 08:45:17,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:45:17,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:45:17,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:45:17,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:45:17,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:45:17,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:45:17,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 08:45:17,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:45:17,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:45:17,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:45:17,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:45:17,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:45:17,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:45:17,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:45:17,427 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:45:17,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:45:17,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:45:17,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:45:17,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:45:17,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 08:45:17,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:45:17,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:45:17,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:45:17,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:45:17,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:45:17,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:45:17,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:45:17,436 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:45:17,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:45:17,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:45:17,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:45:17,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:45:17,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 08:45:17,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:45:17,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:45:17,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:45:17,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:45:17,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:45:17,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:45:17,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:45:17,447 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:45:17,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:45:17,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:45:17,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:45:17,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:45:17,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 08:45:17,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:45:17,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:45:17,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:45:17,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:45:17,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:45:17,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:45:17,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:45:17,455 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:45:17,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:45:17,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:45:17,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:45:17,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:45:17,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 08:45:17,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:45:17,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:45:17,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:45:17,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:45:17,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:45:17,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:45:17,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:45:17,463 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:45:17,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:45:17,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:45:17,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:45:17,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:45:17,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 08:45:17,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:45:17,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:45:17,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:45:17,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:45:17,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:45:17,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:45:17,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:45:17,472 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:45:17,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:45:17,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:45:17,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:45:17,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:45:17,514 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 08:45:17,516 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1358976301] [2020-09-25 08:45:17,519 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:45:17,519 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 08:45:17,521 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493495318] [2020-09-25 08:45:17,529 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 08:45:17,529 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:45:17,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 08:45:17,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 08:45:17,555 INFO L87 Difference]: Start difference. First operand 291 states. Second operand 3 states. [2020-09-25 08:45:18,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:45:18,952 INFO L93 Difference]: Finished difference Result 448 states and 534 transitions. [2020-09-25 08:45:18,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 08:45:18,955 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-25 08:45:18,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:45:18,979 INFO L225 Difference]: With dead ends: 448 [2020-09-25 08:45:18,980 INFO L226 Difference]: Without dead ends: 282 [2020-09-25 08:45:18,987 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 08:45:19,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-09-25 08:45:19,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 240. [2020-09-25 08:45:19,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 240 states. [2020-09-25 08:45:19,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 259 transitions. [2020-09-25 08:45:19,128 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 259 transitions. Word has length 142 [2020-09-25 08:45:19,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:45:19,129 INFO L479 AbstractCegarLoop]: Abstraction has 240 states and 259 transitions. [2020-09-25 08:45:19,129 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 08:45:19,130 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 259 transitions. [2020-09-25 08:45:19,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-25 08:45:19,134 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:45:19,135 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] [2020-09-25 08:45:19,135 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 08:45:19,136 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:45:19,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:45:19,136 INFO L82 PathProgramCache]: Analyzing trace with hash 1207117873, now seen corresponding path program 1 times [2020-09-25 08:45:19,136 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:45:19,137 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1637222787] [2020-09-25 08:45:19,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:45:19,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:45:19,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:45:19,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:45:20,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:45:21,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:45:22,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:45:24,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:45:24,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 08:45:24,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 08:45:24,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-09-25 08:45:24,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:45:24,221 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:45:24,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:45:24,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 08:45:24,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 08:45:24,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:45:24,504 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 08:45:24,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:45:24,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:45:24,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:45:24,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:45:24,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 08:45:24,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:45:24,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-09-25 08:45:24,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:45:24,614 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:45:24,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:45:24,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:45:24,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:45:24,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:45:24,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 08:45:24,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:45:24,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:45:24,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:45:24,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:45:24,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:45:24,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:45:24,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:45:24,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:45:24,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:45:24,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:45:24,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:45:24,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:45:24,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 08:45:24,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:45:24,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:45:24,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:45:24,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:45:24,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:45:24,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:45:24,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:45:24,662 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:45:24,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:45:24,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:45:24,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:45:24,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:45:24,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 08:45:24,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:45:24,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:45:24,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:45:24,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:45:24,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:45:24,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:45:24,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:45:24,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:45:24,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:45:24,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:45:24,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:45:24,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:45:24,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 08:45:24,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:45:24,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:45:24,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:45:24,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:45:24,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:45:24,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:45:24,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:45:24,679 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:45:24,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:45:24,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:45:24,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:45:24,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:45:24,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 08:45:24,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:45:24,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:45:24,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:45:24,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:45:24,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:45:24,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:45:24,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:45:24,729 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:45:24,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:45:24,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:45:24,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:45:24,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:45:24,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 08:45:24,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:45:24,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:45:24,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:45:24,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:45:24,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:45:24,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:45:24,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:45:24,737 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:45:24,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:45:24,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:45:24,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:45:24,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:45:24,769 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 08:45:24,769 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1637222787] [2020-09-25 08:45:24,770 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:45:24,770 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 08:45:24,770 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462298980] [2020-09-25 08:45:24,772 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 08:45:24,776 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:45:24,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 08:45:24,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 08:45:24,777 INFO L87 Difference]: Start difference. First operand 240 states and 259 transitions. Second operand 4 states. [2020-09-25 08:45:25,442 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:45:26,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:45:26,331 INFO L93 Difference]: Finished difference Result 352 states and 395 transitions. [2020-09-25 08:45:26,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 08:45:26,332 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-25 08:45:26,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:45:26,337 INFO L225 Difference]: With dead ends: 352 [2020-09-25 08:45:26,337 INFO L226 Difference]: Without dead ends: 265 [2020-09-25 08:45:26,339 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 08:45:26,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2020-09-25 08:45:26,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 230. [2020-09-25 08:45:26,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-09-25 08:45:26,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 246 transitions. [2020-09-25 08:45:26,391 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 246 transitions. Word has length 143 [2020-09-25 08:45:26,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:45:26,392 INFO L479 AbstractCegarLoop]: Abstraction has 230 states and 246 transitions. [2020-09-25 08:45:26,392 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 08:45:26,392 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 246 transitions. [2020-09-25 08:45:26,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-25 08:45:26,395 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:45:26,395 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:45:26,395 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 08:45:26,396 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:45:26,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:45:26,396 INFO L82 PathProgramCache]: Analyzing trace with hash -2086984222, now seen corresponding path program 1 times [2020-09-25 08:45:26,396 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:45:26,397 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [523287256] [2020-09-25 08:45:26,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:45:26,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:45:26,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:45:26,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:45:27,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:45:28,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:45:31,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:45:31,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 08:45:31,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:45:31,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-09-25 08:45:31,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:45:31,505 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:45:31,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:45:31,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 08:45:31,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 08:45:31,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:45:31,822 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 08:45:31,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:45:31,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:45:31,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:45:31,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:45:31,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 08:45:31,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:45:31,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-09-25 08:45:31,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:45:31,939 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:45:31,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:45:31,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:45:31,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:45:31,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:45:32,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 08:45:32,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:45:32,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:45:32,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:45:32,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:45:32,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:45:32,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:45:32,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:45:32,013 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:45:32,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:45:32,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:45:32,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:45:32,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:45:32,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 08:45:32,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:45:32,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:45:32,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:45:32,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:45:32,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:45:32,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:45:32,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:45:32,019 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:45:32,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:45:32,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:45:32,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:45:32,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:45:32,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 08:45:32,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:45:32,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:45:32,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:45:32,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:45:32,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:45:32,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:45:32,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:45:32,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:45:32,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:45:32,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:45:32,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:45:32,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:45:32,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 08:45:32,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:45:32,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:45:32,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:45:32,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:45:32,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:45:32,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:45:32,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:45:32,036 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:45:32,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:45:32,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:45:32,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:45:32,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:45:32,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 08:45:32,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:45:32,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:45:32,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:45:32,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:45:32,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:45:32,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:45:32,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:45:32,054 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:45:32,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:45:32,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:45:32,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 08:45:32,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:45:32,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 08:45:32,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:45:32,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:45:32,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:45:32,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:45:32,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:45:32,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:45:32,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:45:32,074 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:45:32,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:45:32,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:45:32,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:45:32,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 08:45:32,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 08:45:32,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:45:32,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:45:32,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:45:32,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:45:32,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:45:32,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:45:32,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:45:32,088 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:45:32,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:45:32,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:45:32,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:45:32,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:45:32,115 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 08:45:32,118 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [523287256] [2020-09-25 08:45:32,118 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:45:32,118 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 08:45:32,119 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779980894] [2020-09-25 08:45:32,121 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 08:45:32,121 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:45:32,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 08:45:32,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 08:45:32,123 INFO L87 Difference]: Start difference. First operand 230 states and 246 transitions. Second operand 5 states. [2020-09-25 08:45:32,745 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 08:45:34,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:45:34,681 INFO L93 Difference]: Finished difference Result 536 states and 619 transitions. [2020-09-25 08:45:34,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 08:45:34,682 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2020-09-25 08:45:34,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:45:34,686 INFO L225 Difference]: With dead ends: 536 [2020-09-25 08:45:34,686 INFO L226 Difference]: Without dead ends: 416 [2020-09-25 08:45:34,688 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 08:45:34,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2020-09-25 08:45:34,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 334. [2020-09-25 08:45:34,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 334 states. [2020-09-25 08:45:34,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 365 transitions. [2020-09-25 08:45:34,781 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 365 transitions. Word has length 156 [2020-09-25 08:45:34,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:45:34,782 INFO L479 AbstractCegarLoop]: Abstraction has 334 states and 365 transitions. [2020-09-25 08:45:34,783 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 08:45:34,783 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 365 transitions. [2020-09-25 08:45:34,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 08:45:34,785 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:45:34,786 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 08:45:34,786 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 08:45:34,786 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:45:34,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:45:34,786 INFO L82 PathProgramCache]: Analyzing trace with hash 228813241, now seen corresponding path program 1 times [2020-09-25 08:45:34,787 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:45:34,787 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1992807686] [2020-09-25 08:45:34,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:45:34,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:45:34,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:45:35,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:45:36,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:45:38,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:45:39,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:45:39,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-09-25 08:45:39,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:45:39,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-09-25 08:45:39,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:45:39,875 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:45:39,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 08:45:39,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 150 [2020-09-25 08:45:39,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 08:45:39,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:45:40,189 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 08:45:40,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:45:40,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:45:40,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:45:40,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:45:40,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 08:45:40,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:45:40,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-25 08:45:40,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:45:40,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:45:40,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:45:40,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:45:40,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:45:40,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:45:40,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 08:45:40,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:45:40,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:45:40,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:45:40,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:45:40,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:45:40,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:45:40,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:45:40,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:45:40,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:45:40,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:45:40,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:45:40,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:45:40,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 08:45:40,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:45:40,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:45:40,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:45:40,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:45:40,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:45:40,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:45:40,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:45:40,333 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:45:40,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:45:40,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:45:40,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:45:40,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:45:40,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 08:45:40,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:45:40,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:45:40,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:45:40,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:45:40,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:45:40,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:45:40,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:45:40,341 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:45:40,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:45:40,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:45:40,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:45:40,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:45:40,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 08:45:40,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:45:40,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:45:40,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:45:40,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:45:40,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:45:40,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:45:40,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:45:40,347 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:45:40,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:45:40,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:45:40,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:45:40,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:45:40,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 08:45:40,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:45:40,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:45:40,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:45:40,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:45:40,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:45:40,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:45:40,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:45:40,369 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:45:40,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:45:40,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:45:40,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 08:45:40,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:45:40,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 08:45:40,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:45:40,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:45:40,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:45:40,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:45:40,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:45:40,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:45:40,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:45:40,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:45:40,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:45:40,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:45:40,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:45:40,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:45:40,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 08:45:40,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:45:40,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:45:40,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:45:40,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:45:40,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:45:40,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:45:40,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:45:40,392 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:45:40,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:45:40,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:45:40,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:45:40,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:45:40,459 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 08:45:40,459 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1992807686] [2020-09-25 08:45:40,460 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:45:40,460 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 08:45:40,460 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90736222] [2020-09-25 08:45:40,461 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 08:45:40,461 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:45:40,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 08:45:40,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 08:45:40,462 INFO L87 Difference]: Start difference. First operand 334 states and 365 transitions. Second operand 9 states. [2020-09-25 08:45:41,058 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 08:45:42,836 WARN L193 SmtUtils]: Spent 423.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188 [2020-09-25 08:45:43,401 WARN L193 SmtUtils]: Spent 525.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 190 [2020-09-25 08:45:43,719 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 08:45:44,066 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:45:44,367 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 08:45:44,952 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:45:45,315 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 08:45:45,653 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:45:46,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:45:46,526 INFO L93 Difference]: Finished difference Result 795 states and 942 transitions. [2020-09-25 08:45:46,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 08:45:46,527 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 161 [2020-09-25 08:45:46,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:45:46,532 INFO L225 Difference]: With dead ends: 795 [2020-09-25 08:45:46,532 INFO L226 Difference]: Without dead ends: 571 [2020-09-25 08:45:46,534 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=117, Invalid=345, Unknown=0, NotChecked=0, Total=462 [2020-09-25 08:45:46,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2020-09-25 08:45:46,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 488. [2020-09-25 08:45:46,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 488 states. [2020-09-25 08:45:46,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 545 transitions. [2020-09-25 08:45:46,627 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 545 transitions. Word has length 161 [2020-09-25 08:45:46,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:45:46,628 INFO L479 AbstractCegarLoop]: Abstraction has 488 states and 545 transitions. [2020-09-25 08:45:46,628 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 08:45:46,628 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 545 transitions. [2020-09-25 08:45:46,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-09-25 08:45:46,634 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:45:46,634 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:45:46,634 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 08:45:46,635 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:45:46,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:45:46,635 INFO L82 PathProgramCache]: Analyzing trace with hash -1176469571, now seen corresponding path program 1 times [2020-09-25 08:45:46,635 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:45:46,635 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1990554547] [2020-09-25 08:45:46,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:45:46,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:45:46,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:45:47,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:45:51,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:45:51,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 228 [2020-09-25 08:45:51,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:45:51,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-09-25 08:45:51,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:45:51,708 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:45:51,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 08:45:51,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 178 [2020-09-25 08:45:51,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 08:45:51,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:45:51,979 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 08:45:51,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:45:51,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:45:51,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:45:52,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:45:52,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 08:45:52,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:45:52,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-25 08:45:52,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:45:52,084 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:45:52,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:45:52,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:45:52,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:45:52,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:45:52,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 08:45:52,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:45:52,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:45:52,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:45:52,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:45:52,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:45:52,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:45:52,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:45:52,129 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:45:52,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:45:52,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:45:52,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:45:52,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:45:52,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 08:45:52,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:45:52,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:45:52,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:45:52,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:45:52,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:45:52,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:45:52,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:45:52,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:45:52,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:45:52,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:45:52,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:45:52,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:45:52,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 08:45:52,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:45:52,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:45:52,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:45:52,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:45:52,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:45:52,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:45:52,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:45:52,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:45:52,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:45:52,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:45:52,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:45:52,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:45:52,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 08:45:52,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:45:52,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:45:52,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:45:52,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:45:52,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:45:52,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:45:52,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:45:52,153 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:45:52,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:45:52,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:45:52,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:45:52,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:45:52,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 08:45:52,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:45:52,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:45:52,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:45:52,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:45:52,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:45:52,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:45:52,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:45:52,175 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:45:52,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:45:52,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:45:52,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:45:52,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:45:52,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 08:45:52,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:45:52,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:45:52,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:45:52,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 08:45:52,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:45:52,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-25 08:45:52,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:45:52,240 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:45:52,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 08:45:52,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 08:45:52,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 08:45:52,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:45:52,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:45:52,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:45:52,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:45:52,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:45:52,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 08:45:52,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:45:52,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-25 08:45:52,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:45:52,314 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:45:52,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:45:52,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:45:52,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 08:45:52,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:45:52,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:45:52,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:45:52,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:45:52,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:45:52,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:45:52,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:45:52,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:45:52,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:45:52,399 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:45:52,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:45:52,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:45:52,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:45:52,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:45:52,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 08:45:52,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:45:52,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:45:52,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:45:52,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:45:52,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:45:52,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:45:52,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:45:52,410 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:45:52,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:45:52,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 08:45:52,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:45:52,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:45:52,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-09-25 08:45:52,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:45:52,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:45:52,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:45:52,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:45:52,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:45:52,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:45:52,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:45:52,418 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:45:52,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:45:52,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:45:52,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:45:52,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:45:52,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-25 08:45:52,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:45:52,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:45:52,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:45:52,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:45:52,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:45:52,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:45:52,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:45:52,425 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:45:52,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:45:52,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:45:52,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:45:52,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:45:52,461 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 08:45:52,462 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1990554547] [2020-09-25 08:45:52,462 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:45:52,462 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 08:45:52,462 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77066755] [2020-09-25 08:45:52,463 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 08:45:52,463 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:45:52,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 08:45:52,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 08:45:52,464 INFO L87 Difference]: Start difference. First operand 488 states and 545 transitions. Second operand 10 states.