/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=0.2 --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_spec3_product08.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 04:05:42,506 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 04:05:42,510 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 04:05:42,537 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 04:05:42,538 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 04:05:42,539 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 04:05:42,540 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 04:05:42,542 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 04:05:42,544 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 04:05:42,544 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 04:05:42,545 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 04:05:42,547 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 04:05:42,547 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 04:05:42,548 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 04:05:42,549 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 04:05:42,550 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 04:05:42,551 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 04:05:42,552 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 04:05:42,554 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 04:05:42,556 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 04:05:42,557 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 04:05:42,558 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 04:05:42,560 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 04:05:42,561 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 04:05:42,564 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 04:05:42,564 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 04:05:42,564 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 04:05:42,565 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 04:05:42,566 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 04:05:42,569 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 04:05:42,570 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 04:05:42,571 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 04:05:42,571 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 04:05:42,572 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 04:05:42,573 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 04:05:42,574 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 04:05:42,574 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 04:05:42,575 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 04:05:42,577 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 04:05:42,578 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 04:05:42,579 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 04:05:42,585 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 04:05:42,637 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 04:05:42,637 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 04:05:42,639 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 04:05:42,639 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 04:05:42,640 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 04:05:42,640 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 04:05:42,640 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 04:05:42,640 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 04:05:42,640 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 04:05:42,641 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 04:05:42,642 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 04:05:42,642 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 04:05:42,642 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 04:05:42,643 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 04:05:42,643 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 04:05:42,644 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 04:05:42,644 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 04:05:42,644 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 04:05:42,644 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 04:05:42,645 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 04:05:42,645 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 04:05:42,645 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 04:05:42,645 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 04:05:42,646 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 04:05:42,646 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 04:05:42,646 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 04:05:42,646 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 04:05:42,646 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 04:05:42,647 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 04:05:42,647 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=0.2;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=0.2;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=0.2;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=0.2;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=0.2;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=0.2;log-additional-information=true; [2020-09-25 04:05:43,135 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 04:05:43,154 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 04:05:43,159 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 04:05:43,160 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 04:05:43,161 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 04:05:43,162 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product08.cil.c [2020-09-25 04:05:43,257 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/406f266f3/83ef91bfcd334235a19f6ab8b4cc55fc/FLAG6bed778dc [2020-09-25 04:05:43,894 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 04:05:43,895 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product08.cil.c [2020-09-25 04:05:43,911 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/406f266f3/83ef91bfcd334235a19f6ab8b4cc55fc/FLAG6bed778dc [2020-09-25 04:05:44,171 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/406f266f3/83ef91bfcd334235a19f6ab8b4cc55fc [2020-09-25 04:05:44,188 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 04:05:44,198 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 04:05:44,200 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 04:05:44,201 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 04:05:44,205 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 04:05:44,206 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:05:44" (1/1) ... [2020-09-25 04:05:44,212 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@277364e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:05:44, skipping insertion in model container [2020-09-25 04:05:44,212 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:05:44" (1/1) ... [2020-09-25 04:05:44,222 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 04:05:44,313 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 04:05:44,770 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:05:44,786 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 04:05:44,922 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:05:44,969 INFO L208 MainTranslator]: Completed translation [2020-09-25 04:05:44,971 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:05:44 WrapperNode [2020-09-25 04:05:44,971 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 04:05:44,971 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 04:05:44,972 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 04:05:44,972 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 04:05:44,985 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:05:44" (1/1) ... [2020-09-25 04:05:44,987 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:05:44" (1/1) ... [2020-09-25 04:05:45,013 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:05:44" (1/1) ... [2020-09-25 04:05:45,013 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:05:44" (1/1) ... [2020-09-25 04:05:45,054 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:05:44" (1/1) ... [2020-09-25 04:05:45,068 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:05:44" (1/1) ... [2020-09-25 04:05:45,075 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:05:44" (1/1) ... [2020-09-25 04:05:45,092 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 04:05:45,093 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 04:05:45,093 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 04:05:45,093 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 04:05:45,096 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:05:44" (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 04:05:45,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 04:05:45,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 04:05:45,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 04:05:45,201 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 04:05:45,201 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 04:05:45,201 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 04:05:45,201 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 04:05:45,202 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 04:05:45,203 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 04:05:45,203 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 04:05:45,203 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 04:05:45,203 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 04:05:45,203 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 04:05:45,204 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 04:05:45,204 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 04:05:45,205 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 04:05:45,205 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 04:05:45,205 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 04:05:45,205 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 04:05:45,206 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 04:05:45,206 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 04:05:45,206 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 04:05:45,207 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 04:05:45,207 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 04:05:45,207 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 04:05:45,208 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 04:05:45,208 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 04:05:45,208 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 04:05:45,208 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 04:05:45,208 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 04:05:45,208 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 04:05:45,209 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 04:05:45,209 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 04:05:45,209 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 04:05:45,209 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 04:05:45,210 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 04:05:45,210 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 04:05:45,210 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 04:05:45,210 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 04:05:45,210 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 04:05:45,211 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 04:05:45,211 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 04:05:45,211 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 04:05:45,211 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 04:05:45,211 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 04:05:45,211 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 04:05:45,211 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 04:05:45,212 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 04:05:45,212 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 04:05:45,212 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 04:05:45,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 04:05:45,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 04:05:45,213 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 04:05:45,213 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 04:05:45,213 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 04:05:45,214 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 04:05:45,214 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 04:05:45,214 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 04:05:45,214 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 04:05:45,214 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 04:05:45,214 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 04:05:45,215 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 04:05:45,215 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 04:05:45,215 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 04:05:45,215 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 04:05:45,216 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 04:05:45,216 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 04:05:45,216 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 04:05:45,216 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 04:05:45,217 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 04:05:45,217 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 04:05:45,219 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 04:05:45,219 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 04:05:45,219 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 04:05:45,219 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 04:05:45,219 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 04:05:45,219 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 04:05:45,220 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 04:05:45,220 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 04:05:45,220 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 04:05:45,220 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 04:05:45,220 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 04:05:45,221 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 04:05:45,221 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 04:05:45,222 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 04:05:45,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 04:05:45,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 04:05:45,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 04:05:46,498 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 04:05:46,499 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 04:05:46,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:05:46 BoogieIcfgContainer [2020-09-25 04:05:46,511 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 04:05:46,514 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 04:05:46,515 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 04:05:46,519 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 04:05:46,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 04:05:44" (1/3) ... [2020-09-25 04:05:46,520 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10b4544d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:05:46, skipping insertion in model container [2020-09-25 04:05:46,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:05:44" (2/3) ... [2020-09-25 04:05:46,521 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10b4544d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:05:46, skipping insertion in model container [2020-09-25 04:05:46,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:05:46" (3/3) ... [2020-09-25 04:05:46,524 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product08.cil.c [2020-09-25 04:05:46,536 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 04:05:46,551 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 04:05:46,576 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 04:05:46,622 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 04:05:46,623 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 04:05:46,623 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 04:05:46,624 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 04:05:46,624 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 04:05:46,624 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 04:05:46,624 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 04:05:46,624 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 04:05:46,654 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states. [2020-09-25 04:05:46,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 04:05:46,672 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:05:46,673 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] [2020-09-25 04:05:46,674 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:05:46,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:05:46,680 INFO L82 PathProgramCache]: Analyzing trace with hash -1628156155, now seen corresponding path program 1 times [2020-09-25 04:05:46,691 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:05:46,692 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1444221064] [2020-09-25 04:05:46,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:05:47,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:05:47,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:47,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:48,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:52,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:05:52,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 04:05:52,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 04:05:52,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-09-25 04:05:52,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:05:52,077 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:05:52,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:05:52,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 04:05:52,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:05:52,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 04:05:52,487 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 04:05:52,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:05:52,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:05:52,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:52,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:05:52,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:05:52,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:05:52,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-09-25 04:05:52,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:05:52,625 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:05:52,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:05:52,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:05:52,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:05:52,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:05:52,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:05:52,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:05:52,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:52,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:05:52,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:05:52,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:05:52,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:05:52,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:05:52,695 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:05:52,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:05:52,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:05:52,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:05:52,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:05:52,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 04:05:52,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:05:52,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:52,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:05:52,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:05:52,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:05:52,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:05:52,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:05:52,702 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:05:52,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:05:52,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:05:52,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:05:52,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:05:52,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 04:05:52,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:05:52,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:52,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:05:52,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:05:52,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:05:52,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:05:52,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:05:52,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:05:52,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:05:52,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:05:52,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:05:52,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:05:52,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 04:05:52,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:05:52,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:52,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:05:52,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:05:52,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:05:52,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:05:52,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:05:52,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:05:52,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:05:52,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:05:52,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:05:52,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:05:52,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 04:05:52,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:05:52,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:52,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:05:52,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:05:52,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:05:52,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:05:52,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:05:52,728 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:05:52,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:05:52,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:05:52,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:05:52,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:05:52,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 04:05:52,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:05:52,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:52,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:05:52,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:05:52,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:05:52,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:05:52,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:05:52,737 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:05:52,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:05:52,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:05:52,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:05:52,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:05:52,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 04:05:52,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:05:52,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:52,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:05:52,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:05:52,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:05:52,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:05:52,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:05:52,746 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:05:52,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:05:52,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:05:52,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:05:52,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:05:52,817 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 04:05:52,818 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1444221064] [2020-09-25 04:05:52,821 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:05:52,821 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 04:05:52,822 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977199614] [2020-09-25 04:05:52,832 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 04:05:52,832 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:05:52,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 04:05:52,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:05:52,864 INFO L87 Difference]: Start difference. First operand 285 states. Second operand 3 states. [2020-09-25 04:05:54,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:05:54,337 INFO L93 Difference]: Finished difference Result 436 states and 524 transitions. [2020-09-25 04:05:54,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 04:05:54,339 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-25 04:05:54,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:05:54,360 INFO L225 Difference]: With dead ends: 436 [2020-09-25 04:05:54,361 INFO L226 Difference]: Without dead ends: 276 [2020-09-25 04:05:54,367 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 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 04:05:54,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2020-09-25 04:05:54,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 234. [2020-09-25 04:05:54,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2020-09-25 04:05:54,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 254 transitions. [2020-09-25 04:05:54,483 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 254 transitions. Word has length 153 [2020-09-25 04:05:54,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:05:54,484 INFO L479 AbstractCegarLoop]: Abstraction has 234 states and 254 transitions. [2020-09-25 04:05:54,485 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 04:05:54,485 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 254 transitions. [2020-09-25 04:05:54,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-25 04:05:54,490 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:05:54,490 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] [2020-09-25 04:05:54,491 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 04:05:54,491 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:05:54,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:05:54,491 INFO L82 PathProgramCache]: Analyzing trace with hash -1901557840, now seen corresponding path program 1 times [2020-09-25 04:05:54,492 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:05:54,492 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1571231763] [2020-09-25 04:05:54,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:05:54,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:05:54,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:54,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:56,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:59,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:05:59,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 04:05:59,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 04:05:59,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5045 [2020-09-25 04:05:59,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:05:59,606 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:05:59,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:05:59,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 04:05:59,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 04:05:59,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:05:59,937 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 04:05:59,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:05:59,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:05:59,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:00,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:00,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:06:00,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:00,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-09-25 04:06:00,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:00,087 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:00,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:00,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:00,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:00,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:00,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:06:00,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:00,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:00,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:00,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:06:00,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:00,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:06:00,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:00,128 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:00,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:00,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:00,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:00,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:00,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 04:06:00,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:00,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:00,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:00,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:06:00,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:00,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:06:00,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:00,134 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:00,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:00,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:00,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:00,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:00,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 04:06:00,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:00,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:00,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:00,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:06:00,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:00,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:06:00,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:00,143 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:00,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:00,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:00,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:00,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:00,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 04:06:00,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:00,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:00,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:00,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:06:00,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:00,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:06:00,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:00,150 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:00,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:00,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:00,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:00,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:00,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-25 04:06:00,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:00,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:00,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:00,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:06:00,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:00,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:06:00,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:00,156 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:00,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:00,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:06:00,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:00,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:00,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 04:06:00,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:00,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:00,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:00,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:06:00,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:00,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:06:00,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:00,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:00,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:00,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:06:00,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:00,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:00,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-25 04:06:00,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:00,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:00,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:00,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:06:00,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:00,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:06:00,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:00,171 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:00,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:00,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:06:00,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:00,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:00,199 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 04:06:00,199 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1571231763] [2020-09-25 04:06:00,203 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:06:00,204 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 04:06:00,204 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798677431] [2020-09-25 04:06:00,206 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 04:06:00,207 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:06:00,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 04:06:00,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 04:06:00,207 INFO L87 Difference]: Start difference. First operand 234 states and 254 transitions. Second operand 4 states. [2020-09-25 04:06:00,824 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:06:01,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:06:01,694 INFO L93 Difference]: Finished difference Result 343 states and 387 transitions. [2020-09-25 04:06:01,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 04:06:01,695 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-25 04:06:01,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:06:01,700 INFO L225 Difference]: With dead ends: 343 [2020-09-25 04:06:01,700 INFO L226 Difference]: Without dead ends: 259 [2020-09-25 04:06:01,702 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 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 04:06:01,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2020-09-25 04:06:01,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 224. [2020-09-25 04:06:01,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2020-09-25 04:06:01,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 241 transitions. [2020-09-25 04:06:01,746 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 241 transitions. Word has length 154 [2020-09-25 04:06:01,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:06:01,747 INFO L479 AbstractCegarLoop]: Abstraction has 224 states and 241 transitions. [2020-09-25 04:06:01,747 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 04:06:01,747 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 241 transitions. [2020-09-25 04:06:01,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-25 04:06:01,751 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:06:01,751 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] [2020-09-25 04:06:01,751 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 04:06:01,751 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:06:01,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:06:01,752 INFO L82 PathProgramCache]: Analyzing trace with hash 189375213, now seen corresponding path program 1 times [2020-09-25 04:06:01,752 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:06:01,752 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2140777963] [2020-09-25 04:06:01,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:06:01,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:01,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:02,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:04,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:04,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 04:06:04,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:06:04,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3137 [2020-09-25 04:06:04,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:04,948 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:04,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:06:04,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 04:06:04,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 04:06:04,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:06:05,227 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 04:06:05,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:06:05,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:05,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:05,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:05,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:06:05,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:05,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-09-25 04:06:05,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:05,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:05,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:05,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:05,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:05,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:05,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:06:05,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:05,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:05,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:05,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:06:05,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:05,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:06:05,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:05,387 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:05,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:05,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:05,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:05,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:05,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 04:06:05,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:05,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:05,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:05,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:06:05,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:05,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:06:05,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:05,395 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:05,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:05,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:05,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:05,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:05,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 04:06:05,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:05,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:05,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:05,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:06:05,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:05,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:06:05,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:05,404 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:05,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:05,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:05,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:05,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:06:05,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 04:06:05,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:05,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:05,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:05,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:06:05,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:05,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:06:05,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:05,413 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:05,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:05,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:05,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:05,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:05,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 04:06:05,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:05,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:05,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:05,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 04:06:05,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:05,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 04:06:05,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:05,433 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:05,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:06:05,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:05,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 04:06:05,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:05,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 04:06:05,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:05,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:05,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:05,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:06:05,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:05,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:06:05,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:05,446 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:05,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:05,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:06:05,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:05,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:05,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-25 04:06:05,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:05,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:05,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:05,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:06:05,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:05,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:06:05,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:05,455 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:05,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:05,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:06:05,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:05,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:05,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-25 04:06:05,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:05,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:05,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:05,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:06:05,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:05,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:06:05,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:05,463 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:05,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:05,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:06:05,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:05,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:05,496 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 04:06:05,497 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2140777963] [2020-09-25 04:06:05,497 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:06:05,498 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 04:06:05,498 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111706347] [2020-09-25 04:06:05,499 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 04:06:05,499 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:06:05,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 04:06:05,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 04:06:05,501 INFO L87 Difference]: Start difference. First operand 224 states and 241 transitions. Second operand 5 states. [2020-09-25 04:06:05,977 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 04:06:07,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:06:07,575 INFO L93 Difference]: Finished difference Result 518 states and 604 transitions. [2020-09-25 04:06:07,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 04:06:07,576 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 167 [2020-09-25 04:06:07,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:06:07,582 INFO L225 Difference]: With dead ends: 518 [2020-09-25 04:06:07,582 INFO L226 Difference]: Without dead ends: 404 [2020-09-25 04:06:07,584 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 04:06:07,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2020-09-25 04:06:07,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 328. [2020-09-25 04:06:07,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 328 states. [2020-09-25 04:06:07,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 363 transitions. [2020-09-25 04:06:07,662 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 363 transitions. Word has length 167 [2020-09-25 04:06:07,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:06:07,663 INFO L479 AbstractCegarLoop]: Abstraction has 328 states and 363 transitions. [2020-09-25 04:06:07,663 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 04:06:07,663 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 363 transitions. [2020-09-25 04:06:07,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-25 04:06:07,672 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:06:07,673 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] [2020-09-25 04:06:07,673 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 04:06:07,673 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:06:07,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:06:07,674 INFO L82 PathProgramCache]: Analyzing trace with hash 1096724522, now seen corresponding path program 1 times [2020-09-25 04:06:07,674 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:06:07,674 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [667757198] [2020-09-25 04:06:07,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:06:07,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:07,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:09,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:09,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-25 04:06:09,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:09,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1887 [2020-09-25 04:06:09,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:09,624 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:09,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 04:06:09,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 04:06:09,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-09-25 04:06:09,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:09,953 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 04:06:09,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:06:09,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:10,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:10,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:10,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:06:10,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:10,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 242 [2020-09-25 04:06:10,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:10,230 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:10,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:06:10,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:10,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 04:06:10,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:10,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:06:10,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:10,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:10,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:10,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:06:10,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:10,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 04:06:10,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:10,284 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:10,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:06:10,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:10,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 04:06:10,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:10,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 04:06:10,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:10,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:10,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:10,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:06:10,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:10,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:06:10,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:10,293 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:10,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:06:10,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:10,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 04:06:10,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:06:10,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 04:06:10,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:10,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:10,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:10,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:06:10,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:10,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 04:06:10,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:10,308 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:10,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:06:10,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:10,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:06:10,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:10,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 04:06:10,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:10,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:10,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:10,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:06:10,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:10,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:06:10,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:10,317 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:10,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:06:10,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:10,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 04:06:10,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:10,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 04:06:10,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:10,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:10,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:10,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:06:10,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:10,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:06:10,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:10,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:10,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:06:10,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:10,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:06:10,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:10,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-25 04:06:10,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:10,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:10,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:10,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:06:10,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:10,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:06:10,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:10,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:10,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:06:10,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:10,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:06:10,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:10,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-25 04:06:10,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:10,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:10,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:10,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:06:10,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:10,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 04:06:10,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:10,377 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:10,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:06:10,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:10,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:06:10,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:10,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-25 04:06:10,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:10,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:10,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:10,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:06:10,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:10,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:06:10,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:10,409 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:10,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:10,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:06:10,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:10,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:10,456 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 04:06:10,457 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [667757198] [2020-09-25 04:06:10,457 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:06:10,457 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 04:06:10,458 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123224504] [2020-09-25 04:06:10,459 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 04:06:10,459 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:06:10,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 04:06:10,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 04:06:10,460 INFO L87 Difference]: Start difference. First operand 328 states and 363 transitions. Second operand 9 states. [2020-09-25 04:06:11,063 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 04:06:12,891 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 04:06:13,258 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 04:06:13,592 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 04:06:13,959 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 04:06:14,271 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 04:06:14,606 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 04:06:14,913 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 04:06:15,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:06:15,708 INFO L93 Difference]: Finished difference Result 846 states and 1021 transitions. [2020-09-25 04:06:15,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 04:06:15,709 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 172 [2020-09-25 04:06:15,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:06:15,716 INFO L225 Difference]: With dead ends: 846 [2020-09-25 04:06:15,716 INFO L226 Difference]: Without dead ends: 628 [2020-09-25 04:06:15,718 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-25 04:06:15,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 628 states. [2020-09-25 04:06:15,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 628 to 533. [2020-09-25 04:06:15,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 533 states. [2020-09-25 04:06:15,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 609 transitions. [2020-09-25 04:06:15,808 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 609 transitions. Word has length 172 [2020-09-25 04:06:15,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:06:15,808 INFO L479 AbstractCegarLoop]: Abstraction has 533 states and 609 transitions. [2020-09-25 04:06:15,809 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 04:06:15,809 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 609 transitions. [2020-09-25 04:06:15,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-25 04:06:15,813 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:06:15,813 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] [2020-09-25 04:06:15,813 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 04:06:15,814 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:06:15,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:06:15,814 INFO L82 PathProgramCache]: Analyzing trace with hash -1457531517, now seen corresponding path program 1 times [2020-09-25 04:06:15,814 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:06:15,815 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [865127346] [2020-09-25 04:06:15,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:06:15,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:15,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:16,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:17,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:18,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:20,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:20,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 212 [2020-09-25 04:06:20,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 04:06:20,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5043 [2020-09-25 04:06:20,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:20,907 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:20,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:06:20,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 150 [2020-09-25 04:06:20,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 04:06:20,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:21,207 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 04:06:21,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:06:21,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:21,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:21,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:21,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:06:21,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:21,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-25 04:06:21,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:21,310 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:21,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:21,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:21,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:21,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:21,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:06:21,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:21,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:21,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:21,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:06:21,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:21,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:06:21,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:21,347 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:21,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:21,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:21,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:21,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:21,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 04:06:21,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:21,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:21,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:21,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:06:21,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:21,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:06:21,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:21,352 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:21,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:21,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:21,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:21,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:21,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 04:06:21,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:21,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:21,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:21,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:06:21,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:21,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:06:21,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:21,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:21,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:21,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:21,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:21,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:21,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 04:06:21,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:21,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:21,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:21,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:06:21,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:21,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:06:21,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:21,368 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:21,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:21,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:21,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:21,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:21,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 04:06:21,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:21,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:21,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:21,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:06:21,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:21,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 04:06:21,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:21,389 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:21,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:06:21,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:21,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 04:06:21,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:21,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 04:06:21,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:21,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:21,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:21,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:06:21,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:21,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:06:21,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:21,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:21,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:21,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 04:06:21,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:21,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:21,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-25 04:06:21,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:21,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:21,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:21,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:06:21,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:21,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:06:21,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:21,415 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:21,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:21,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:06:21,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:21,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:21,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-25 04:06:21,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:21,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:21,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:21,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:06:21,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:21,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:06:21,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:21,423 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:21,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:21,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:06:21,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:21,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:21,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-09-25 04:06:21,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:21,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:21,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:21,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:06:21,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:21,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:06:21,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:21,430 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:21,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:21,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:06:21,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:21,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:21,463 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 04:06:21,463 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [865127346] [2020-09-25 04:06:21,464 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:06:21,464 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 04:06:21,464 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41362833] [2020-09-25 04:06:21,465 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 04:06:21,465 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:06:21,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 04:06:21,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 04:06:21,466 INFO L87 Difference]: Start difference. First operand 533 states and 609 transitions. Second operand 6 states. [2020-09-25 04:06:22,155 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 04:06:23,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:06:23,372 INFO L93 Difference]: Finished difference Result 917 states and 1095 transitions. [2020-09-25 04:06:23,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 04:06:23,374 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 177 [2020-09-25 04:06:23,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:06:23,377 INFO L225 Difference]: With dead ends: 917 [2020-09-25 04:06:23,378 INFO L226 Difference]: Without dead ends: 494 [2020-09-25 04:06:23,380 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 04:06:23,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2020-09-25 04:06:23,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 421. [2020-09-25 04:06:23,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 421 states. [2020-09-25 04:06:23,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 454 transitions. [2020-09-25 04:06:23,436 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 454 transitions. Word has length 177 [2020-09-25 04:06:23,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:06:23,437 INFO L479 AbstractCegarLoop]: Abstraction has 421 states and 454 transitions. [2020-09-25 04:06:23,437 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 04:06:23,437 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 454 transitions. [2020-09-25 04:06:23,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-25 04:06:23,440 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:06:23,441 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] [2020-09-25 04:06:23,441 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 04:06:23,441 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:06:23,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:06:23,442 INFO L82 PathProgramCache]: Analyzing trace with hash -1990325339, now seen corresponding path program 1 times [2020-09-25 04:06:23,442 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:06:23,442 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [809183650] [2020-09-25 04:06:23,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:06:23,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 04:06:23,506 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 04:06:23,507 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 04:06:23,512 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 04:06:23,539 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 04:06:23 BoogieIcfgContainer [2020-09-25 04:06:23,540 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 04:06:23,542 INFO L168 Benchmark]: Toolchain (without parser) took 39350.77 ms. Allocated memory was 140.5 MB in the beginning and 652.2 MB in the end (delta: 511.7 MB). Free memory was 103.0 MB in the beginning and 376.3 MB in the end (delta: -273.3 MB). Peak memory consumption was 238.4 MB. Max. memory is 7.1 GB. [2020-09-25 04:06:23,543 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 04:06:23,544 INFO L168 Benchmark]: CACSL2BoogieTranslator took 770.88 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 102.4 MB in the beginning and 173.4 MB in the end (delta: -71.0 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. [2020-09-25 04:06:23,545 INFO L168 Benchmark]: Boogie Preprocessor took 120.91 ms. Allocated memory is still 203.9 MB. Free memory was 173.4 MB in the beginning and 168.8 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. [2020-09-25 04:06:23,546 INFO L168 Benchmark]: RCFGBuilder took 1418.29 ms. Allocated memory was 203.9 MB in the beginning and 236.5 MB in the end (delta: 32.5 MB). Free memory was 168.8 MB in the beginning and 180.2 MB in the end (delta: -11.4 MB). Peak memory consumption was 83.1 MB. Max. memory is 7.1 GB. [2020-09-25 04:06:23,547 INFO L168 Benchmark]: TraceAbstraction took 37025.54 ms. Allocated memory was 236.5 MB in the beginning and 652.2 MB in the end (delta: 415.8 MB). Free memory was 180.2 MB in the beginning and 376.3 MB in the end (delta: -196.1 MB). Peak memory consumption was 219.7 MB. Max. memory is 7.1 GB. [2020-09-25 04:06:23,551 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 770.88 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 102.4 MB in the beginning and 173.4 MB in the end (delta: -71.0 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 120.91 ms. Allocated memory is still 203.9 MB. Free memory was 173.4 MB in the beginning and 168.8 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1418.29 ms. Allocated memory was 203.9 MB in the beginning and 236.5 MB in the end (delta: 32.5 MB). Free memory was 168.8 MB in the beginning and 180.2 MB in the end (delta: -11.4 MB). Peak memory consumption was 83.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 37025.54 ms. Allocated memory was 236.5 MB in the beginning and 652.2 MB in the end (delta: 415.8 MB). Free memory was 180.2 MB in the beginning and 376.3 MB in the end (delta: -196.1 MB). Peak memory consumption was 219.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 532]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L247] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L448] int waterLevel = 1; [L449] int methaneLevelCritical = 0; [L613] int pumpRunning = 0; [L614] int systemActive = 1; [L807] int cleanupTimeShifts = 4; [L880] int retValue_acc ; [L881] int tmp ; [L885] FCALL select_helpers() [L886] FCALL select_features() [L887] CALL, EXPR valid_product() [L798] int retValue_acc ; [L801] retValue_acc = 1 [L802] return (retValue_acc); [L887] RET, EXPR valid_product() [L887] tmp = valid_product() [L889] COND TRUE \read(tmp) [L891] FCALL setup() [L892] CALL runTest() [L874] CALL test() [L542] int splverifierCounter ; [L543] int tmp ; [L544] int tmp___0 ; [L545] int tmp___1 ; [L546] int tmp___2 ; [L549] splverifierCounter = 0 [L551] COND TRUE 1 [L553] COND TRUE splverifierCounter < 4 [L559] tmp = __VERIFIER_nondet_int() [L561] COND TRUE \read(tmp) [L563] CALL waterRise() [L466] COND TRUE waterLevel < 2 [L467] waterLevel = waterLevel + 1 [L563] RET waterRise() [L569] tmp___0 = __VERIFIER_nondet_int() [L571] COND FALSE !(\read(tmp___0)) [L579] tmp___2 = __VERIFIER_nondet_int() [L581] COND FALSE !(\read(tmp___2)) [L587] tmp___1 = __VERIFIER_nondet_int() [L589] COND TRUE \read(tmp___1) [L591] CALL stopSystem() [L749] COND FALSE !(\read(pumpRunning)) [L756] systemActive = 0 [L591] RET stopSystem() [L598] CALL timeShift() [L620] COND FALSE !(\read(pumpRunning)) [L627] COND FALSE !(\read(systemActive)) [L635] CALL __utac_acc__Specification3_spec__1() [L45] int tmp ; [L46] int tmp___0 ; [L47] int tmp___1 ; [L51] CALL, EXPR isMethaneLevelCritical() [L487] int retValue_acc ; [L490] retValue_acc = methaneLevelCritical [L491] return (retValue_acc); [L51] RET, EXPR isMethaneLevelCritical() [L51] tmp = isMethaneLevelCritical() [L53] COND FALSE !(\read(tmp)) [L57] CALL, EXPR getWaterLevel() [L519] int retValue_acc ; [L522] retValue_acc = waterLevel [L523] return (retValue_acc); [L57] RET, EXPR getWaterLevel() [L57] tmp___0 = getWaterLevel() [L59] COND TRUE tmp___0 == 2 [L61] CALL, EXPR isPumpRunning() [L701] int retValue_acc ; [L704] retValue_acc = pumpRunning [L705] return (retValue_acc); [L61] RET, EXPR isPumpRunning() [L61] tmp___1 = isPumpRunning() [L63] COND FALSE !(\read(tmp___1)) [L67] CALL __automaton_fail() [L532] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 37 procedures, 600 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 36.8s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 12.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1096 SDtfs, 1487 SDslu, 999 SDs, 0 SdLazy, 2149 SolverSat, 473 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 135 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 4.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=533occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 5 MinimizatonAttempts, 321 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 23.2s InterpolantComputationTime, 1000 NumberOfCodeBlocks, 1000 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 818 ConstructedInterpolants, 0 QuantifiedInterpolants, 312666 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...